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Commercial and US Government Launch Vehicles => ULA - Delta, Atlas, Vulcan => Topic started by: Targeteer on 12/28/2017 01:08 am

Title: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: Targeteer on 12/28/2017 01:08 am
I really wanted to start this thread :)

http://www.losangeles.af.mil/News/Article-Display/Article/734643/air-force-awards-nrol-52-and-nrol-71-launch-services-contract/ (http://www.losangeles.af.mil/News/Article-Display/Article/734643/air-force-awards-nrol-52-and-nrol-71-launch-services-contract/)

By / Published November 20, 2015

LOS ANGELES AIR FORCE BASE, El Segundo, Calif. -- The U. S. Air Force awarded launch services contracts for the National Reconnaissance Office's NROL- 52 and NROL- 71 missions to United Launch Alliance on the existing Evolved Expendable Launch Vehicle Phase 1 Block Buy contract on Nov. 12.  The Phase 1 Block Buy contract with ULA garnered $4.4 billion in total savings with 36 rocket cores procured from Fiscal Years 2013 to 2017.  These two missions count toward the original contractual Phase 1 Block Buy commitment to ULA.

The launch service contracts include launch vehicle production and launch operations for the NROL-52 and NROL-71 missions.  NROL-52 is scheduled to launch as early as Oct. 1, 2017 and NROL-71 is scheduled to launch as early as Sept. 15, 2018.

"These launches will support the NRO's mission of providing innovative overhead intelligence systems for national security.   The Air Force's acquisition strategy for these contract awards achieves a balance between mission assurance, meeting operational needs, lowering launch costs, and reintroducing competition for National Security Space missions," said Lt. Gen. Samuel Greaves, Air Force Program Executive Officer for Space and Space and Missile Systems Center commander.
Title: Re: Delta IV-H - NROL-71 - Sep 15, 2018 - VAFB SLC-6
Post by: Steven Pietrobon on 12/28/2017 03:57 am
The information I have (from public sources) is that this is a KH-11 replacement.
Title: Re: Delta IV-H - NROL-71 - Sep 15, 2018 - VAFB SLC-6
Post by: Star One on 12/28/2017 05:57 am
The information I have (from public sources) is that this is a KH-11 replacement.

Block V KH-11 according to a SN article of a while ago talking about the NROL-61 payload.

Quote
“Its design may be optimized to support the next generation heavy electro-optical imagery intelligence satellites of KH-11 lineage. I believe that there have been four KH-11 versions (aka blocks) since 1976. The first two launches of what I call Block 5 KH-11 are planned for September 2018 and July 2020.”

https://spaceflightnow.com/2016/07/28/spy-satellite-infrastructure-supported-by-atlas-5-rocket-launch/
Title: Re: Delta IV-H - NROL-71 - Sep 15, 2018 - VAFB SLC-6
Post by: russianhalo117 on 12/28/2017 05:54 pm
The information I have (from public sources) is that this is a KH-11 replacement.

Block V KH-11 according to a SN article of a while ago talking about the NROL-61 payload.

Quote
“Its design may be optimized to support the next generation heavy electro-optical imagery intelligence satellites of KH-11 lineage. I believe that there have been four KH-11 versions (aka blocks) since 1976. The first two launches of what I call Block 5 KH-11 are planned for September 2018 and July 2020.”

https://spaceflightnow.com/2016/07/28/spy-satellite-infrastructure-supported-by-atlas-5-rocket-launch/
The second Block-V would be:
2020:
July - NROL-82: KH-11 18 (Crystal 18) - Delta IV-H - Vandenberg SLC-6
Title: Re: Delta IV-H - NROL-71 - Sep 15, 2018 - VAFB SLC-6
Post by: Newton_V on 12/31/2017 03:12 pm
On the mission logo:

nuv qo'vaD jab

I guess you need a Klingon to English converter for this one.
Title: Re: Delta IV-H - NROL-71 - Sep 15, 2018 - VAFB SLC-6
Post by: brickmack on 12/31/2017 03:58 pm
nuv qo'vaD jab Translates to "to the world the people serve". Where'd you see that though? Only patch I've found for this mission is Englisj ("Serving those who serve", which is close enough that its probably the intended translation)
Title: Re: Delta IV-H - NROL-71 - Sep 15, 2018 - VAFB SLC-6
Post by: Star One on 12/31/2017 08:24 pm
I want to see what happens if the early KH-11s are declassified this year does that mean the whole program is semi-declassified in that they will at least acknowledge this is a KH-11 launch.
Title: Re: Delta IV-H - NROL-71 - Sep 15, 2018 - VAFB SLC-6
Post by: zubenelgenubi on 12/31/2017 08:56 pm
I want to see what happens if the early KH-11s are declassified this year does that mean the whole program is semi-declassified in that they will at least acknowledge this is a KH-11 launch.

Maybe not?

If the changes to the original (not yet confirmed) Block I design compared to this (hypothesized) Block V design are substantial enough, then one could make the argument to truncate the KH-11 designation to the previous 4 blocks, and not officially acknowledge the new block items as a KH-11s?

Sophistry?  Perhaps.  Convenient to the needs of the organization(s)?  Also, perhaps.  Anyways, just a thought.
***

I wonder when the LV will arrive?
Title: Delta IV-H - NROL-71 - Sep 15, 2018 - VAFB SLC-6
Post by: Star One on 12/31/2017 09:02 pm
I want to see what happens if the early KH-11s are declassified this year does that mean the whole program is semi-declassified in that they will at least acknowledge this is a KH-11 launch.

Maybe not?

If the changes to the original (not yet confirmed) Block I design compared to this (hypothesized) Block V design are substantial enough, then one could make the argument to truncate the KH-11 designation to the previous 4 blocks, and not officially acknowledge the new block items as a KH-11s?

Sophistry?  Perhaps.  Convenient to the needs of the organization(s)?  Also, perhaps.  Anyways, just a thought.

Just seems an unnecessary complication. From my prospective in this case identifying the payload doesn’t tell you anything that couldn’t be easily obtained through a telescope for a foreign power such as orbit etc.

By the way I reckon they’ll only declassify the block 1 versions as they are probably deemed sufficiently outdated that they are safe to declassify.
Title: Re: Delta IV-H - NROL-71 - Sep 15, 2018 - VAFB SLC-6
Post by: gosnold on 01/01/2018 01:41 pm
By the way I reckon they’ll only declassify the block 1 versions as they are probably deemed sufficiently outdated that they are safe to declassify.

The physics of the early KH-11s might not surprise anyone, but I think we will be surprised by some of the benefits of high-resolution real-time imagery (if they do release some details).
Title: Delta IV-H - NROL-71 - Sep 15, 2018 - VAFB SLC-6
Post by: Star One on 01/01/2018 02:08 pm
By the way I reckon they’ll only declassify the block 1 versions as they are probably deemed sufficiently outdated that they are safe to declassify.

The physics of the early KH-11s might not surprise anyone, but I think we will be surprised by some of the benefits of high-resolution real-time imagery (if they do release some details).

If we do get any images, even if illustrations, I want to see how much heritage they have with Hubble.
Title: Re: Delta IV-H - NROL-71 - Sep 15, 2018 - VAFB SLC-6
Post by: Newton_V on 01/01/2018 07:30 pm
nuv qo'vaD jab Translates to "to the world the people serve". Where'd you see that though? Only patch I've found for this mission is Englisj ("Serving those who serve", which is close enough that its probably the intended translation)

I managed to acquire a mug, coin, and patch, but since then, I think the Klingon has been replaced with English.
(just noticed the TINCUP whiskey in the background!)
Title: Re: Delta IV-H - NROL-71 - Sep 15, 2018 - VAFB SLC-6
Post by: zubenelgenubi on 01/01/2018 07:57 pm
nuv qo'vaD jab Translates to "to the world the people serve". Where'd you see that though? Only patch I've found for this mission is Englisj ("Serving those who serve", which is close enough that its probably the intended translation)
<snip>
...I think the Klingon has been replaced with English.
<snip>

Could be a copyright thing...I recall that one of the NASA ISS astronauts (helped?) design an Expedition patch featuring a Klingon triskele.  I believe the patch design was later modified, editing out the triskele, due to copyright concerns.

EDIT--Found it! Steve Swanson, ISS CMD, Expedition 40
NSF thread http://forum.nasaspaceflight.com/index.php?topic=34929
Astronaut's cloaked Klingon space patch: Star Trek-inspired emblem revealed (http://www.collectspace.com/news/news-060614a-klingon-star-trek-astronaut-patch.html)
Quote
But like one of the Klingon Bird-of-Prey warships, NASA's lawyers swept in and said no.

Bowing to copyright concerns, the expedition's patch had to be redesigned. The Soyuz rocket still remained, but the Klingon influences were removed.

Copyright may be the concern re: tlhIngan Hol.

According to Wikipedia (G*d, I hate citing WP) https://en.wikipedia.org/wiki/Klingon_language
Quote
CBS Television Studios owns the copyright on the official dictionary and other canonical descriptions of the language. While constructed languages ("conlangs") are viewed as creations with copyright protection, natural languages are not protected, excluding dictionaries and/or other works created with them.
But, a citation is needed for the above passage.

<speculation>
I SUPPOSE that Someone in the chain of command could have chosen to pay a usage fee to the copyright holders, and I can't imagine that price would be too high, and it's all "not for profit."

But, there may be rules against this sort of thing.  Or, it's just easier not to innovate on a relatively minor matter...
</speculation>

<personal observation>
I suppose that if the copyright "thing" is valid for tlhIngan Hol, then that would preclude using tengwar as well.

I personally would love to see a pertinent phrase from JRRT's body of works applied to an NRO patch.
Perhaps "Meddle not in the affairs of wizards"?
</personal observation>
Title: Re: Delta IV-H - NROL-71 - Sep 26, 2018 - VAFB SLC-6
Post by: zubenelgenubi on 06/19/2018 06:09 pm
<snip>
I wonder when the LV will arrive?

We're approximately 3 months out from launch...does anyone know/can anyone say if the DIV-H is on-site?
Title: Re: Delta IV-H - NROL-71 - Sep 15, 2018 - VAFB SLC-6
Post by: russianhalo117 on 06/19/2018 06:29 pm
<snip>
I wonder when the LV will arrive?

We're approximately 3 months out from launch...does anyone know/can anyone say if the DIV-H is on-site?
Components arrived before the previous DIV launch.
Title: Re: Delta IV-H - NROL-71 - Sep 15, 2018 - VAFB SLC-6
Post by: Semmel on 06/19/2018 07:48 pm
The KSC visitor center bus tour guide mentioned on Sunday that DIVH is already in the integration building.

@edit: Ups sorry, wrong launch! Thx to russianhalo117 for pointing it out.
Title: Re: Delta IV-H - NROL-71 - Sep 15, 2018 - VAFB SLC-6
Post by: Bean Kenobi on 06/19/2018 08:03 pm
The KSC visitor center bus tour guide mentioned on Sunday that DIVH is already in the integration building.

Aren't you speaking about the Parker Space Probe launch (from Cape Canaveral) ?

This thread is about NROL-71 (from VAFB).
Title: Re: Delta IV-H - NROL-71 - Sep 15, 2018 - VAFB SLC-6
Post by: Semmel on 06/19/2018 09:09 pm
The KSC visitor center bus tour guide mentioned on Sunday that DIVH is already in the integration building.

Aren't you speaking about the Parker Space Probe launch (from Cape Canaveral) ?

This thread is about NROL-71 (from VAFB).

Ohh, sorry you are of course correct! I should take more care next time and leave the statement as reminder to myself not to get overexcited and double-check next time.
Title: Re: Delta IV-H - NROL-71 - Sep 15, 2018 - VAFB SLC-6
Post by: Newton_V on 06/22/2018 02:42 am
<snip>
I wonder when the LV will arrive?

We're approximately 3 months out from launch...does anyone know/can anyone say if the DIV-H is on-site?

The rocket has been there a while.
Title: Re: Delta IV-H - NROL-71 - Sep 26, 2018 - VAFB SLC-6
Post by: TJL on 08/25/2018 03:16 pm
With just about 1 month before launch, any photos available of the LV? Thank you.
Title: Re: Delta IV-H - NROL-71 - Sep 26, 2018 - VAFB SLC-6
Post by: Newton_V on 08/25/2018 03:57 pm
With just about 1 month before launch, any photos available of the LV? Thank you.

Well, the rocket is stacked but you'll probably have to wait for the usual SFN pictures.
Title: Re: Delta IV-H - NROL-71 - Sep 26, 2018 - VAFB SLC-6
Post by: TJL on 09/07/2018 09:05 am
Looks like launch has been pushed back to December 3rd.
Title: Re: Delta IV-H - NROL-71 - Sep 26, 2018 - VAFB SLC-6
Post by: Newton_V on 09/07/2018 10:32 pm
Looks like launch has been pushed back to December 3rd.

26 Sept hasn't been the launch date for awhile.  Was kind of wondering why it took so long for the new date to be announced.
Looking forward to this one!
Title: Re: Delta IV-H - NROL-71 - Dec. 3, 2018 - VAFB SLC-6
Post by: zubenelgenubi on 09/10/2018 10:15 pm
Re: progress of launch campaign:
Air Force releases new target dates for upcoming military launches (https://spaceflightnow.com/2018/09/07/air-force-releases-new-target-dates-for-upcoming-military-launches/), by Stephen Clark, dated September 7
Quote
The Delta 4-Heavy’s three first stage Common Booster Cores, each powered by an Aerojet Rocketdyne RS-68A main engine, and single-engine upper stage have been raised at Vandenberg’s Space Launch Complex-6 launch pad, nestled between hills overlooking the Pacific Ocean. The rocket’s installation on the launch pad signals the start of several months of testing and checkouts.
Title: Re: Delta IV-H - NROL-71 - Dec. 3, 2018 - VAFB SLC-6
Post by: tyrred on 09/11/2018 10:29 am
Re: progress of launch campaign:
Air Force releases new target dates for upcoming military launches (https://spaceflightnow.com/2018/09/07/air-force-releases-new-target-dates-for-upcoming-military-launches/), dated September 7
Quote
The Delta 4-Heavy’s three first stage Common Booster Cores, each powered by an Aerojet Rocketdyne RS-68A main engine, and single-engine upper stage have been raised at Vandenberg’s Space Launch Complex-6 launch pad, nestled between hills overlooking the Pacific Ocean. The rocket’s installation on the launch pad signals the start of several months of testing and checkouts.

Pictures, anybody? Will this be the first time Delta-IV Heavy will potentially launch twice in the same calendar year?
Title: Re: Delta IV-H - NROL-71 - Dec. 3, 2018 - VAFB SLC-6
Post by: ZachS09 on 09/11/2018 02:30 pm
Re: progress of launch campaign:
Air Force releases new target dates for upcoming military launches (https://spaceflightnow.com/2018/09/07/air-force-releases-new-target-dates-for-upcoming-military-launches/), dated September 7
Quote
The Delta 4-Heavy’s three first stage Common Booster Cores, each powered by an Aerojet Rocketdyne RS-68A main engine, and single-engine upper stage have been raised at Vandenberg’s Space Launch Complex-6 launch pad, nestled between hills overlooking the Pacific Ocean. The rocket’s installation on the launch pad signals the start of several months of testing and checkouts.

Pictures, anybody? Will this be the first time Delta-IV Heavy will potentially launch twice in the same calendar year?

Surprisingly, yes. All other Delta IV Heavy vehicles launched once in a single year.
Title: Re: Delta IV-H - NROL-71 - Dec. 3, 2018 - VAFB SLC-6
Post by: zubenelgenubi on 09/11/2018 03:38 pm
Pictures, anybody? Will this be the first time Delta-IV Heavy will potentially launch twice in the same calendar year?

See this reply up-thread:
Well, the rocket is stacked but you'll probably have to wait for the usual SFN pictures.

Re: VAFB rocket snaps
I've never worked at or visited Vandenberg AFB, and I welcome correction or elaboration...so...

The base is huge.

It's generally closed to the public--no tour buses past the launch complexes.

Sight-lines from off-base (or even on-base) are long, and often blocked by mountains or hills.

(There is the Amtrak Coast Starlight passenger train--IIRC, it runs through or adjacent to VAFB, on the seaward side of the launch complexes.)

It's not a "space tourism" destination, like Florida's Space Coast.

(L2 is a great source of legal hi-res imagery that might interest you.)
Title: Re: Delta IV-H - NROL-71 - Dec. 3, 2018 - VAFB SLC-6
Post by: c3infinity on 09/11/2018 03:58 pm
Re: progress of launch campaign:
Air Force releases new target dates for upcoming military launches (https://spaceflightnow.com/2018/09/07/air-force-releases-new-target-dates-for-upcoming-military-launches/), dated September 7
Quote
The Delta 4-Heavy’s three first stage Common Booster Cores, each powered by an Aerojet Rocketdyne RS-68A main engine, and single-engine upper stage have been raised at Vandenberg’s Space Launch Complex-6 launch pad, nestled between hills overlooking the Pacific Ocean. The rocket’s installation on the launch pad signals the start of several months of testing and checkouts.

Pictures, anybody? Will this be the first time Delta-IV Heavy will potentially launch twice in the same calendar year?

Surprisingly, yes. All other Delta IV Heavy vehicles launched once in a single year.

Just barely. NROL-32 (2010-11-21) and NROL-49 (2011-01-20) were just 2 months apart.
Title: Re: Delta IV-H - NROL-71 - Dec. 3, 2018 - VAFB SLC-6
Post by: Newton_V on 09/12/2018 06:50 pm
Re: progress of launch campaign:
Air Force releases new target dates for upcoming military launches (https://spaceflightnow.com/2018/09/07/air-force-releases-new-target-dates-for-upcoming-military-launches/), dated September 7
Quote
The Delta 4-Heavy’s three first stage Common Booster Cores, each powered by an Aerojet Rocketdyne RS-68A main engine, and single-engine upper stage have been raised at Vandenberg’s Space Launch Complex-6 launch pad, nestled between hills overlooking the Pacific Ocean. The rocket’s installation on the launch pad signals the start of several months of testing and checkouts.

Pictures, anybody? Will this be the first time Delta-IV Heavy will potentially launch twice in the same calendar year?

Best I can do...  That's a MASSIVELY large building.  Very impressive.
Title: Re: Delta IV-H - NROL-71 - Dec. 3, 2018 - VAFB SLC-6
Post by: Tibey on 10/02/2018 01:20 pm
I want to see what happens if the early KH-11s are declassified this year does that mean the whole program is semi-declassified in that they will at least acknowledge this is a KH-11 launch.

Maybe not?

If the changes to the original (not yet confirmed) Block I design compared to this (hypothesized) Block V design are substantial enough, then one could make the argument to truncate the KH-11 designation to the previous 4 blocks, and not officially acknowledge the new block items as a KH-11s?

Sophistry?  Perhaps.  Convenient to the needs of the organization(s)?  Also, perhaps.  Anyways, just a thought.

Just seems an unnecessary complication. From my prospective in this case identifying the payload doesn’t tell you anything that couldn’t be easily obtained through a telescope for a foreign power such as orbit etc.

By the way I reckon they’ll only declassify the block 1 versions as they are probably deemed sufficiently outdated that they are safe to declassify.

Well, it took them almost 30 years to declassify imagery from and show Hexagon to the public... your best guess is as good as mine.
Title: Re: Delta IV-H - NROL-71 - Dec. 3, 2018 - VAFB SLC-6
Post by: Newton_V on 10/13/2018 02:53 am
Looks like SpaceX gave up their launch slot.  I believe this is moving a few days to the left.
Title: Re: Delta IV-H - NROL-71 - Nov 29, 2018 - VAFB SLC-6
Post by: input~2 on 10/17/2018 11:36 am
Quote
ULA's next launch is the NROL-71 mission for the National Reconnaisance Office on a Delta IV Heavy rocket. The launch is scheduled for Nov. 29 from Space Launch Complex-6 at Vandenberg Air Force Base, California.
Title: Re: Delta IV-H - NROL-71 - Nov. 29, 2018 - VAFB SLC-6
Post by: zubenelgenubi on 10/24/2018 11:19 pm
Noted from reading the writings and postings of several satellite observing boffins/analysts:

All (deduced) KH-11 launches have been from Vandenberg.

Amateur satellite observers have observed that all successful launches for KH-11's result in two different polar (sun-synchronous?) destination orbits labelled East and West.

All "west" satellites have launched between 18:00 and 18:30 UTC.

All "east" satellites have launched between 21:10 and 21:35 UTC.

Some questions/thoughts:

Will the launch window for NROL-71, when announced, conform to the previous pattern of strict duality?

This launch would be the first of the KH-11's on a Delta IV-H upgraded.  Will the extra "performance" allow a greater breadth in launch time around the optimal, assuming other parameters are unchanged, such as payload mass and initial orbit?

Which older KH-11 satellite will this one replace, if any?

Will the new "Block 5" KH-11's utilize any form of low-observability/stealth technology, as the Misty satellites were alleged to have?

EDIT 10/27
Will the new "Block 5" s/c utilize (almost) circular orbits?
From Next round of U.S. optical spy satellites to start launching in 2018 (https://spaceflightnow.com/2015/05/01/next-round-of-u-s-optical-spy-satellites-to-start-launching-in-2018/), dated May 1, 2015, by Justin Ray

Quote
All four satellites remain in operation today, with the two Delta 4-Heavy payloads in the typical, elliptical orbits used by KH-11 and the Titan 4 craft repositioned into fuel-hungry, circular orbits that could be a clue to the operating scheme of the future follow-on series.

“USA 161 and USA 186 remain in orbit, but they significantly reduced their mean altitude since their replacements were launched, which may offer a preview of what to expect from the next-generation spacecraft,” [Ted] Molczan said. “These more circular orbits offer more consistent resolution during each revolution, at the expense of greater drag, which requires more fuel for altitude maintenance.”
<snip>
“I speculate that the next-generation spacecraft may be designed to take full advantage of the performance of the Delta 4-Heavy, to carry a much greater fuel load than was possible with the Titan 3 and 4 rockets used to launch the previous generations. That would enable them to adopt the present orbits of USA 161 and USA 186 as the new KH-11 standard,” said Molczan.
Title: Re: Delta IV-H - NROL-71 - Nov. 29, 2018 - VAFB SLC-6
Post by: FutureSpaceTourist on 11/10/2018 06:18 pm
https://twitter.com/ulalaunch/status/1060910573603430400
Title: Re: Delta IV-H - NROL-71 - Nov. 29, 2018 - VAFB SLC-6
Post by: Newton_V on 11/10/2018 06:55 pm
Pretty handsome dude in that second picture..
Title: Re: Delta IV-H - NROL-71 - Nov. 29, 2018 - VAFB SLC-6
Post by: zubenelgenubi on 11/10/2018 09:18 pm
Patch-ology:
Significance of the initials on the bald eagle's two dog-tags?  I noted they were whited out in the image up-thread with the original Klingon phrase.

Significance of the three talons slashing through material?

What is the slashed material supposed to be/represent?

Continuation of the eagle(ish) theme of NROL-49 and 65?

In any case, I love the artwork.  When I saw it, the classic Super Friends theme started playing in my head!

https://www.youtube.com/watch?v=RnxN-ZT9EGE

Too bad both Ted Knight and Bill Woodson (sequential Super Friends narrators) are no longer alive--either would do a great job narrating post-success documentary shorts.  (Bill Woodson in the clip above.)
Title: Re: Delta IV-H - NROL-71 - Nov. 29, 2018 - VAFB SLC-6
Post by: Newton_V on 11/11/2018 12:02 am
I whited out the tags because they were changing, and I think somebody wasn't happy with the original initials on there.  The patchology seems to have changed a bit since L-39.
I'm surprised no southern/central CA beer drinkers noticed anything about the L-47 logo.  Or maybe somebody did and I missed it in the thread.

Title: Re: Delta IV-H - NROL-71 - Nov. 29, 2018 - VAFB SLC-6
Post by: jacqmans on 11/16/2018 01:22 pm
Title: Re: Delta IV-H - NROL-71 - Nov. 29, 2018 - VAFB SLC-6
Post by: jacqmans on 11/16/2018 01:24 pm
In preparation for launch, the National Reconnaissance Office’s NROL-71 satellite, encapsulated inside a 5-meter-diameter payload fairing, is transported and mated to its United Launch Alliance Delta IV Heavy booster at Vandenberg Air Force Base’s Space Launch Complex 6. Photo credit: United Launch Alliance
Title: Re: Delta IV-H - NROL-71 - Nov. 29, 2018 - VAFB SLC-6
Post by: Newton_V on 11/19/2018 10:24 pm
Title: Re: Delta IV-H - NROL-71 - Dec. 7, 2018 - VAFB SLC-6
Post by: eeergo on 11/21/2018 03:09 pm
Delay to Dec 7th:

https://twitter.com/NatReconOfc/status/1065273975381594114
Title: Re: Delta IV-H - NROL-71 - Dec. 7, 2018 - VAFB SLC-6
Post by: envy887 on 11/21/2018 06:13 pm
Delay to Dec 7th:

https://twitter.com/NatReconOfc/status/1065273975381594114

Does this have anything to do with SSO-A slipping to the 27th? Can VAFB turn the range around in 48 hours, or was the 29th too tight?
Title: Re: Delta IV-H - NROL-71 - Dec. 7, 2018 - VAFB SLC-6
Post by: Newton_V on 11/21/2018 08:01 pm
Does this have anything to do with SSO-A slipping to the 27th?
No.
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6
Post by: zubenelgenubi on 11/23/2018 10:30 pm
<Rod Serling>For your consideration...</Rod Serling>

Via browser search, I found this Yelp review (https://www.yelp.com/biz/moffett-bay-trail-sunnyvale), with images, on the Moffett Bay Trail, re: possible preparations at Moffett Field to load a satellite payload on a C-5.

Reviewer Fred T hypothesizes that the preparations that he witnessed were for the nighttime transfer of the NROL-71 KH-11 from the Lockheed-Martin Sunnyvale facility to Vandenberg AFB.

His images in the review were taken from the trail.  Review dated June 27, 2018.

Please read the review for his evidence/deduction chain.

Plausible?  (I'm not suggesting a definitive answer.)
Title: Re: Delta IV-H - NROL-71 - Nov. 29, 2018 - VAFB SLC-6
Post by: Newton_V on 11/25/2018 03:15 pm
Patch-ology:
Significance of the initials on the bald eagle's two dog-tags?  I noted they were whited out in the image up-thread with the original Klingon phrase.
https://en.wikipedia.org/wiki/Joshua_Chamberlain

Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6
Post by: Alter Sachse on 11/30/2018 01:27 pm
unusual
launch 08:19 PM PST ---> 04:19 UTC (?)

https://www.ulalaunch.com/missions/delta-iv-nrol-71
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6
Post by: Targeteer on 11/30/2018 08:21 pm
National Reconnaissance Office  8 hrs · Facebook

Our mission patch #NROL71 depicts an eagle as the symbol of both freedom and the nation, which provides a fitting mascot to represent NRO's support to our nation's warfighter. The initials "JLC" on the foreground dog-tag are in honor of Col. Joshua L. Chamberlain, a Union commander who was awarded the Medal of Honor for his heroism at the battle of Gettysburg, July 2, 1863, when he held the Union Army's southern flank at Little Round Top against a repeated assault from Confederate forces. Col. Chamberlain's heroism, leadership, and commitment to 'service before self' exemplify the ethos of the American service member.

The patch also includes the NRO mission number, NROL-71, along with Delta IV Heavy and Vandenberg AFB to indicate both the launch vehicle and location.

The motto "Serving Those Who Serve" rounds out the mission logo and represents NRO's commitment to delivering the mission on time to the warfighter and intelligence community.
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6
Post by: MattBaker on 12/01/2018 01:34 am
Regarding patchology, the three parallel tears look like the ground track of a polar orbit, which would be where this type of satellite would go.

And with every pass it tears through a fog of war underneath it, showing even the hidden things going on.

Just an idea, IIRC other patches had references to the orbit, too and it's known that it's a KH-11 and there's been a dozen launches of this constellation, so it's basically public information where this birdie goes, why not put it on the patch then?
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6
Post by: zubenelgenubi on 12/01/2018 04:23 am
Noted from reading the writings and postings of several satellite observing boffins/analysts:

All (deduced) KH-11 launches have been from Vandenberg.

Amateur satellite observers have observed that all successful launches for KH-11's result in two different polar (sun-synchronous?) destination orbits labelled East and West.

All "west" satellites have launched between 18:00 and 18:30 UTC.

All "east" satellites have launched between 21:10 and 21:35 UTC.

Some questions/thoughts:

Will the launch window for NROL-71, when announced, conform to the previous pattern of strict duality?

Apparently, no.
unusual
launch 08:19 PM PST ---> 04:19 UTC (?)

https://www.ulalaunch.com/missions/delta-iv-nrol-71

And:
This launch would be the first of the KH-11's on a Delta IV-H upgraded.  Will the extra "performance" allow a greater breadth in launch time around the optimal, assuming other parameters are unchanged, such as payload mass and initial orbit?
Maybe?
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6
Post by: catdlr on 12/04/2018 02:55 am
FOR IMMEDIATE RELEASE
From: 30th Space Wing Public Affairs, www.vandenberg.af.mil

Delta IV Heavy Launch Scheduled

VANDENBERG AIR FORCE BASE, Calif. - Team Vandenberg is scheduled to support
the launch of a United Launch Alliance Delta IV Heavy rocket carrying a
National Reconnaissance Office payload from Space Launch Complex-6 on
Friday, Dec. 7, with a launch window opening at 8:19 p.m. PST. 

Col. Bob Reeves, 30th Space Vice Wing commander, will be the space launch
commander.

"Team V has put in a lot of hard work for this launch," said Reeves. "We are
dedicated to mission success and proud to work alongside United Launch
Alliance and the National Reconnaissance Office."

The 4th Space Launch Squadron executes integrated launch operations with a
focus on mission assurance for this spacelift mission. 

"Every mission is unique and this Delta IV Heavy launch is a prime example
of teamwork with a laser focus on mission success," said Lt. Col. Kenneth
Decker, 4th SLS commander and Air Force Launch Director for the mission.
"Our mission assurance technicians and engineers have worked diligently with
United Launch Alliance and the other mission partners to reduce risk in
order to assure mission safety and security.  The men and women of the 4 SLS
are proud to contribute to this important mission."
______________________________________________________________
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6
Post by: William Graham on 12/04/2018 09:41 pm
So the plot thickens. Ted Molczan has posted a plot of the hazard areas on SeeSat-L (http://www.satobs.org/seesat/Dec-2018/0014.html) and it appears that the target inclination is about 74 degrees! That this is not going to sun-synchronous orbit is unusual to say the least.

The USSR did operate Zenit photoreconnaissance satellites in similar orbits (up to about 73 degrees) but these launches ended in the 1980s and there were also a very small number of Corona satellites that used a 75-degree orbit in  the 1960s. Russia has also used this inclination for ELINT satellites, but DIVH would seem like overkill for an ELINT bird.

I am considering three possibilities:
 * A KH-11 or successor targeting a different inclination
 * A Misty/USA-144 follow-on (either operating in a 74 degree orbit, or manoeuvring to ~63 degrees)
 * Something completely different
Title: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6
Post by: Star One on 12/05/2018 10:37 am
So the plot thickens. Ted Molczan has posted a plot of the hazard areas on SeeSat-L (http://www.satobs.org/seesat/Dec-2018/0014.html) and it appears that the target inclination is about 74 degrees! That this is not going to sun-synchronous orbit is unusual to say the least.

The USSR did operate Zenit photoreconnaissance satellites in similar orbits (up to about 73 degrees) but these launches ended in the 1980s and there were also a very small number of Corona satellites that used a 75-degree orbit in  the 1960s. Russia has also used this inclination for ELINT satellites, but DIVH would seem like overkill for an ELINT bird.

I am considering three possibilities:
 * A KH-11 or successor targeting a different inclination
 * A Misty/USA-144 follow-on (either operating in a 74 degree orbit, or manoeuvring to ~63 degrees)
 * Something completely different

Could it be that is being deliberately launched into this orbit to hide its purpose and then manoeuvre into a more typical orbit after launch or would that kind of change require the use of too much propellant.
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6
Post by: William Graham on 12/05/2018 09:18 pm
So the plot thickens. Ted Molczan has posted a plot of the hazard areas on SeeSat-L (http://www.satobs.org/seesat/Dec-2018/0014.html) and it appears that the target inclination is about 74 degrees! That this is not going to sun-synchronous orbit is unusual to say the least.

The USSR did operate Zenit photoreconnaissance satellites in similar orbits (up to about 73 degrees) but these launches ended in the 1980s and there were also a very small number of Corona satellites that used a 75-degree orbit in  the 1960s. Russia has also used this inclination for ELINT satellites, but DIVH would seem like overkill for an ELINT bird.

I am considering three possibilities:
 * A KH-11 or successor targeting a different inclination
 * A Misty/USA-144 follow-on (either operating in a 74 degree orbit, or manoeuvring to ~63 degrees)
 * Something completely different

Could it be that is being deliberately launched into this orbit to hide its purpose and then manoeuvre into a more typical orbit after launch or would that kind of change require the use of too much propellant.

From a very quick approximation, I think the Delta-V requirement would be somewhere on the order of 3km/s, which does seem excessively high - especially for a satellite the size of KH-11. This is assuming a 1,200 km circular orbit inclination change from of 74 to 98 degrees - in reality the perigee is likely to be lower, resulting in a greater Delta-V requirement.

My earlier suggestion of a change to 63 degrees (the orbit previously used by MISTY) would be about half of the Delta-V to SSO, but that still seems too high to be likely, so I suspect the final orbit will be closer to 74 degrees (although it could still manoeuvre by a few degrees).

I'd appreciate if someone could check my figures.
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6
Post by: input~2 on 12/05/2018 10:58 pm
!CARF 12/054 (KZAK A4833/18)  ZAK AIRSPACE DCC 2 ROPS AIROPS DO-1815 PART B STNR ALT RESERVATION WI AN AREA DEFINED AS 4115N14726W TO 4127N14644W TO 3957N14603W TO 3946N14645W TO POINT OF ORIGIN SFC-UNL 1812080449-1812080731
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: input~2 on 12/05/2018 11:07 pm
EASTERN PACIFIC.
1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING
080244Z TO 080551Z DEC, ALTERNATE 0244Z TO 0551Z
DAILY 09 AND 10 DEC IN AREAS BOUND BY:
A. 25-12N 116-54W, 25-02N 117-34W,
26-40N 118-05W, 26-50N 117-25W.
B. 04-41S 109-18W, 04-53S 110-04W,
00-05N 111-16W, 00-17N 110-30W.
2. HAZARDOUS OPERATIONS, ROCKET LAUNCHING
080449Z TO 080731Z DEC, ALTERNATE 0449Z TO 0731Z
DAILY 09 AND 10 DEC IN AREA BOUND BY
41-15N 147-26W, 41-27N 146-44W,
39-57N 146-03W, 39-46N 146-45W.
3. CANCEL THIS MSG 100831Z DEC 18.//

Authority: WESTERN RANGE 282205Z NOV 18.

Date: 030945Z DEC 18
Cancel: 10083100 Dec 18
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: input~2 on 12/05/2018 11:26 pm
This NOTAM for Mazatlan Oceanic FIR has not been updated yet...
A7298/18 -  DANGEROUS AREA FALLING OF FRAGMENTS OF CORE BOOSTER ROCKET LAUNCHED BY UNITED STATES AIR FORCE LATERAL LIMIT: AREA FORMED BY THE UNION OF THE FOLLOWING POINTS 25 12N  116 54W 25 02N  117 34W 26 40N  118 05W 26 50N  117 25W. MSL - UNL, 0431/0721 DLY, 30 NOV 04:31 2018 UNTIL 06 DEC 07:21 2018. CREATED: 26 NOV 18:48 2018
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: LouScheffer on 12/06/2018 02:25 pm

Could it be that is being deliberately launched into this orbit to hide its purpose and then manoeuvre into a more typical orbit after launch or would that kind of change require the use of too much propellant.

From a very quick approximation, I think the Delta-V requirement would be somewhere on the order of 3km/s, which does seem excessively high - especially for a satellite the size of KH-11. This is assuming a 1,200 km circular orbit inclination change from of 74 to 98 degrees - in reality the perigee is likely to be lower, resulting in a greater Delta-V requirement.

My earlier suggestion of a change to 63 degrees (the orbit previously used by MISTY) would be about half of the Delta-V to SSO, but that still seems too high to be likely, so I suspect the final orbit will be closer to 74 degrees (although it could still manoeuvre by a few degrees).

I'd appreciate if someone could check my figures.
Assuming orbital velocity of 7.7 km/sec, we can find the delta-V required to go into the same orbit, different inclination from the law of cosines c = sqrt(a^2 + b^2 - 2*a*b*cos(theta))

Plugging in a = b = 7700, and theta = 24 degrees (74 to 98) we get 3202 m/s.

For the smaller plane change of 11 degrees, we get 1476 m/s. 

These agree with your figures, and both seem too high to be practical.
EDIT: fix typo in law of cosines.
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: Star One on 12/06/2018 03:08 pm
Could this KH-11 be a very different beast to its predecessors, perhaps smaller with the use of electric propulsion. I remember reading several articles over the past years where the NRO indicated that they wanted to use smaller satellites than in the past.
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: gosnold on 12/06/2018 04:50 pm
Could this KH-11 be a very different beast to its predecessors, perhaps smaller with the use of electric propulsion. I remember reading several articles over the past years where the NRO indicated that they wanted to use smaller satellites than in the past.

Yes but why launch it into a 74° orbit even if it has high delta-v? Unless it is stealthy, foreign countries and amateurs will be able to track it anyway.
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: Star One on 12/06/2018 07:46 pm
Could this KH-11 be a very different beast to its predecessors, perhaps smaller with the use of electric propulsion. I remember reading several articles over the past years where the NRO indicated that they wanted to use smaller satellites than in the past.

Yes but why launch it into a 74° orbit even if it has high delta-v? Unless it is stealthy, foreign countries and amateurs will be able to track it anyway.

Wouldn’t the latest KH-11’s be more stealthy as par for the course in increasingly contested space?
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: Targeteer on 12/06/2018 07:53 pm
Ted posted another message with search elements http://www.satobs.org/seesat/Dec-2018/0029.html  .

"This launch has already presented a huge surprise; there could well be more."
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: Satori on 12/06/2018 08:54 pm
Do we know when the rocket was transported to the launch pad?
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: catdlr on 12/07/2018 02:42 am
Launch Alert
7:29 PM PST


The following are excerpts from an L-1 media update issued by the United Launch Alliance regarding Friday evening's launch:

Good evening - The ULA Launch Readiness Review was completed today and everything is progressing toward the ULA Delta IV Heavy launch carrying the NROL-71 mission for the National Reconnaissance Office. The mission is set to lift off on a Delta IV Heavy rocket on Friday, Dec. 7 from Space Launch Complex-6 at Vandenberg Air Force Base in California. Today’s forecast shows a 40 percent chance of favorable weather conditions for launch. The launch time is 8:19 p.m. PT.

View the Delta IV Heavy NROL-71 Mission Profile video here: https://www.youtube.com/watch?v=_gj3QVKzSWQ

Launch Forecast Summary:
Overall probability of violating weather constraints: 60%
Primary concerns: Ground Winds

Overall probability of violating weather constraints for 24 hour delay: 40%
Primary concern: Ground Winds

Launch Broadcast
Live broadcast coverage of launch will begin at 7:59 p.m. PT on Dec. 7.
Live launch updates and webcast available at:  www.ulalaunch.com

Launch Broadcast Satellite Coordinates + Webcast
ALL TIMES PACIFIC

FRIDAY, DECEMBER 7
BARS + TONE – 7:28 P.M.
PROGRAM START – 7:59 P.M.
LAUNCH – 8:19 P.M.

DIGITAL SATELLITE C-BAND DOWNLINK
HD FORMAT
SATELLITE — G3
TRANSPONDER — 2
BAND — C-BAND DIGITAL
ORBITAL POSITION — 95°W
HD BANDWIDTH — 18 MHz (HALF TRANSPONDER)
UPLINK — 5,956.000 MHz (Horizontal)
DOWNLINK — 3,731.000 MHz (Vertical)
SYMBOL RATE — 13
FEC — ¾
DATA RATE — 17.9705
DVBS – QPSK
MPEG 2
AUDIO EMBEDDED

Webcast available at  www.ulalaunch.com  and  www.youtube.com/unitedlaunchalliance
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: FutureSpaceTourist on 12/07/2018 10:48 am
Photos posted by ULA
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: Targeteer on 12/07/2018 04:36 pm
Ted issued revised search elements based on a concept called a multiple sun synchronous orbit paper he found  http://www.satobs.org/seesat/Dec-2018/0040.html

"A search of the web for applications of non-sun-synchronous orbits for imaging turned up an unfamiliar concept, that
just might explain a 74 deg KH-11 orbit: Multi Sun-Synchronous Orbit (MSSO). The plane of an SSO rotates once per Earth
orbit around the sun. An MSSO rotates multiple times during the same period. The following paper states that MSSO
orbits, "could be adopted by those Earth science missions whose aim is to study the local hour effects on the
observed object."

http://naca.central.cranfield.ac.uk/dcsss/2004/B11_MSSOb.pdf"
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: tyrred on 12/07/2018 05:30 pm
Photos posted by ULA

Never seen that much rainwater at Vandy.  What a wondrous sight to reflect upon!
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: Newton_V on 12/07/2018 05:38 pm

Never seen that much rainwater at Vandy.  What a wondrous sight to reflect upon!
[/quote]

It rained all afternoon yesterday.  Had friends and family day out at the pad, could take all the pics you wanted.  Luckily there was a nice big building to stand under providing shelter!
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: Chris Bergin on 12/07/2018 06:30 pm
Jack's there for NSF! :)

https://twitter.com/thejackbeyer/status/1071122865460666368

Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: whiztech on 12/07/2018 07:16 pm
Delta IV NROL-71 stream

https://www.youtube.com/watch?v=ZsX1TmAmeEU
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: edkyle99 on 12/07/2018 08:21 pm
Jack's there for NSF! :)
Wonderful photo!

 - Ed Kyle
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: Chris Bergin on 12/07/2018 08:41 pm
Countdown has begun!
https://twitter.com/ulalaunch/status/1071156373021310976
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: Chris Bergin on 12/07/2018 10:44 pm
FEATURE ARTICLE: ULA Delta IV-Heavy set to launch NROL-71

https://www.nasaspaceflight.com/2018/12/ula-delta-iv-heavy-set-to-launch-nrol-71/ …

- An extensive overview by William Graham

https://twitter.com/NASASpaceflight/status/1071188646554976256
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: MATTBLAK on 12/07/2018 11:10 pm
That is an excellent article! Reference quality.
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: FutureSpaceTourist on 12/07/2018 11:34 pm
More ULA photos
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: FutureSpaceTourist on 12/07/2018 11:36 pm
Quote
Per @ulalaunch: This hold will be extended while the team troubleshoots an issue with the holdfire circuitry. This system would be used to stop the launch if the need arises. A special red crew is returning to the launch pad to further troubleshoot this ongoing issue. #NROL71

https://twitter.com/nextspaceflight/status/1071198442234482689
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: Michael Baylor on 12/07/2018 11:59 pm
Looking at well over an hour delay right now. Still no word from ULA.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: Chris Bergin on 12/08/2018 12:08 am
Scrub:

https://twitter.com/nextspaceflight/status/1071209111700848642
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: zubenelgenubi on 12/08/2018 12:26 am
Do we know when the rocket was transported to the launch pad?
Re: LV stage assembly chronology.  I don't know; I haven't seen it in any articles.

Delta IV's at SLC-6 are stacked on the pad inside of the Mobile Assembly Shelter + Mobile Service Tower.  The buildings are transported away from the rocket!  According to SFN, the MAS was moved December 6, and the MST was to be moved on the afternoon of December 7, local time.
***

Moot point: December 7 launch weather forecast:
Quote
...iffy conditions for a launch tonight, with only a 40 percent probability of favorable weather...  The chief weather concern is with ground winds.

And:
Quote
ULA has ordered a 24-hour recycle for a possible launch attempt tomorrow night.
https://spaceflightnow.com/2018/12/07/delta-382-mission-status-center/

What's the launch forecast for tomorrow, if this is a 1-day turn-around?
EDIT: answered above/below.
***

Follow-on observation: Extending the hold does not necessarily equal a launch window of significant time-span vs. an instantaneous launch window, yes?
***

Follow-on question: As this is NOT a launch to a (standard?) SSO, then there could be a significant shift in T-0 on tomorrow's (possible) launch date?  Or no?
EDIT: 13 minutes earlier.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: Chris Bergin on 12/08/2018 12:37 am
(Vandenberg Air Force Base, Calif., Dec. 7, 2018) – The launch of a United Launch Alliance Delta IV Heavy carrying the NROL-71 mission for the National Reconnaissance Office was scrubbed today due to an issue with a redundant communication link between the control center and the launch site.   

 

The team is prepping for a 24-hour turn around on Saturday, Dec. 8, from Space Launch Complex-6 at Vandenberg Air Force Base. The forecast shows a 60 percent chance of favorable weather conditions for launch. The launch time is 8:06 p.m. PT.
Title: Re: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: MattBaker on 12/08/2018 01:09 am
What's the launch forecast for tomorrow, if this is a 1-day turn-around?

This post  (https://forum.nasaspaceflight.com/index.php?topic=44545.msg1885193#msg1885193) further back in the thread included the launch forecast:

Launch Forecast Summary:
Overall probability of violating weather constraints: 60%
Primary concerns: Ground Winds

Overall probability of violating weather constraints for 24 hour delay: 40%
Primary concern: Ground Winds

So ground winds are still the issue but as Chris' update shows, bit better.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: psionedge on 12/08/2018 01:44 am
https://twitter.com/ulalaunch/status/1071233017966817280
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: Jim on 12/08/2018 02:21 am
Do we know when the rocket was transported to the launch pad?
Re: LV stage assembly chronology.  I don't know; I haven't seen it in any articles.

Delta IV's at SLC-6 are stacked on the pad inside of the Mobile Assembly Shelter + Mobile Service Tower.  The buildings are transported away from the rocket!  According to SFN, the MAS was moved December 6, and the MST was to be moved on the afternoon of December 7, local time.
***

Moot point: December 7 launch weather forecast:
Quote
...iffy conditions for a launch tonight, with only a 40 percent probability of favorable weather...  The chief weather concern is with ground winds.

And:
Quote
ULA has ordered a 24-hour recycle for a possible launch attempt tomorrow night.
https://spaceflightnow.com/2018/12/07/delta-382-mission-status-center/

What's the launch forecast for tomorrow, if this is a 1-day turn-around?
EDIT: answered above/below.
***

Follow-on observation: Extending the hold does not necessarily equal a launch window of significant time-span vs. an instantaneous launch window, yes?
***

Follow-on question: As this is NOT a launch to a (standard?) SSO, then there could be a significant shift in T-0 on tomorrow's (possible) launch date?  Or no?
EDIT: 13 minutes earlier.

The vehicle is assembled horizontally just like at the Cape.  Only the payload is hoisted at the pad.  The Mobile Assembly Shelter has no real role in assembly unlike what it did for shuttle.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: zubenelgenubi on 12/08/2018 05:36 am
Do we know when the rocket was transported to the launch pad?
Re: LV stage assembly chronology.  I don't know; I haven't seen it in any articles.

Delta IV's at SLC-6 are stacked on the pad inside of the Mobile Assembly Shelter + Mobile Service Tower.  The buildings are transported away from the rocket!  According to SFN, the MAS was moved December 6, and the MST was to be moved on the afternoon of December 7, local time.

The vehicle is assembled horizontally just like at the Cape.  Only the payload is hoisted at the pad.  The Mobile Assembly Shelter has no real role in assembly unlike what it did for shuttle.

Oops.  Forgot about Delta IV horizontal assembly.  Where is that horizontal assembly performed--is it in the large building on the "other" side of the pad from the MST (forgot its name)?
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 7, 2018 - VAFB SLC-6 (20:19 PST)
Post by: catdlr on 12/08/2018 05:43 am
Do we know when the rocket was transported to the launch pad?
Re: LV stage assembly chronology.  I don't know; I haven't seen it in any articles.

Delta IV's at SLC-6 are stacked on the pad inside of the Mobile Assembly Shelter + Mobile Service Tower.  The buildings are transported away from the rocket!  According to SFN, the MAS was moved December 6, and the MST was to be moved on the afternoon of December 7, local time.

The vehicle is assembled horizontally just like at the Cape.  Only the payload is hoisted at the pad.  The Mobile Assembly Shelter has no real role in assembly unlike what it did for shuttle.

Oops.  Forgot about Delta IV horizontal assembly.  Where is that horizontal assembly performed--is it in the large building on the "other" side of the pad from the MST (forgot its name)?

I beleive here (Jim would know better):  map (https://www.google.com/maps/place/34%C2%B035'11.3%22N+120%C2%B037'39.4%22W/@34.5864618,-120.6278914,203m/data=!3m1!1e3!4m5!3m4!1s0x0:0x0!8m2!3d34.586469!4d-120.627614?hl=en)
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:06 PST)
Post by: Star One on 12/08/2018 11:13 am
Here’s an updated search elements post by Mr Molczan.

http://satobs.org/seesat/Dec-2018/0045.html
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:06 PST)
Post by: hootowls on 12/08/2018 05:47 pm
VAFB Delta IV processing flow - diagram on page 7-21 of ULA's Delta IV User's Guide.

https://www.ulalaunch.com/docs/default-source/rockets/delta-iv-user's-guide.pdf (https://www.ulalaunch.com/docs/default-source/rockets/delta-iv-user's-guide.pdf)
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:06 PST)
Post by: FutureSpaceTourist on 12/08/2018 08:12 pm
https://twitter.com/ulalaunch/status/1071498055050911744

Quote
Weather has improved! We are at 70% chance of favorable launch weather for tonight's #NROL71 launch. #DeltaIVHeavy
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:06 PST)
Post by: worldtimedate on 12/08/2018 08:44 pm
https://twitter.com/ulalaunch/status/1071501846500401153

Quote
One step closer to launch of the NROL71 with DeltaIVHeavy. The MST is parked and processing continues as we work towards a 8:06pm PST launch tonight.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:06 PST)
Post by: catdlr on 12/08/2018 10:16 pm
Delta IV Heavy NROL-71 UNVEILED FOR LAUNCH (time-lapse)


AmericaSpace
Published on Dec 8, 2018

https://www.youtube.com/watch?v=dgJda-LFBw0?t=001

https://www.youtube.com/watch?v=dgJda-LFBw0
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:06 PST)
Post by: worldtimedate on 12/08/2018 10:49 pm
https://twitter.com/SpaceflightNow/status/1071548995305177089
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:06 PST)
Post by: Helodriver on 12/08/2018 11:03 pm
Spent some time inside and around SLC-6 yesterday and today. By far the largest launch facility on the base, it is difficult to capture the sheer enormity of it and its components in one frame.

For my 1000th post on NSF, something special, in this multimegapixel composite the open and retracted Mobile Assembly Shelter frames the Delta 4 Heavy which stands half enclosed by the Mobile Service Tower and Fixed Service Structure. One of the highest resolution images of the entire complex yet taken.

Originally built for Manned Orbiting Laboratory, then modified to support Shuttle then further adapted for Delta IV, SLC-6 is the only true heavylift pad out west. it will be interesting to see what vehicle makes its home next here once Delta IV flies out its last flights in the coming years.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:06 PST)
Post by: spacepat_o on 12/08/2018 11:48 pm
Quote
4:36 p.m. PST (7:36 p.m. EST; 0036 UTC) – Countdown stopped

This is Delta Launch Control at T-minus 3 hours, 15 minutes and holding. The launch team is troubleshooting an issue and has elected to stop the countdown until it is resolved before we move further into fueling operations.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:06 PST)
Post by: spacepat_o on 12/08/2018 11:59 pm
Quote
4:50 p.m. PST (7:50 p.m. EST; 0050 UTC) – CBC LOX chilldown

The thermal condition process, known as chilldown, has started for the liquid oxygen systems on Delta IV Heavy rocket's three common booster cores. This preps the tanks and plumbing to guard against shock when the super-cold oxidizer begins flowing into the rocket stages.

4:51 p.m. PST (7:51 p.m. EST; 0051 UTC)

The common booster cores liquid hydrogen loading operation is switching from "slow-fill" to "fast-fill" mode as planned.

The cryogenics are fed to the three CBCs via umbilicals from the tail service masts on the launch table.

4:53 p.m. PST (7:53 p.m. EST; 0053 UTC)

A new launch time will be established later due to the brief, unplanned hold in the countdown.

4:56 p.m. PST (7:56 p.m. EST; 0056 UTC)

The liquid hydrogen level in the three CBCs is 20 percent already.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:06 PST)
Post by: worldtimedate on 12/09/2018 12:12 am
https://twitter.com/SpaceflightNow/status/1071571382255923200

https://twitter.com/SpaceflightNow/status/1071568199194460160
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:06 PST)
Post by: Steven Pietrobon on 12/09/2018 01:06 am
New launch time.

https://www.ulalaunch.com/missions/delta-iv-nrol-71

"5:55 p.m. PST (8:55 p.m. EST; 0155 UTC) –New launch time
Tonight’s targeted liftoff time has been adjusted to 8:15 p.m. PST (11:15 p.m. EST; 0415 UTC)."
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:06 PST)
Post by: Steven Pietrobon on 12/09/2018 01:20 am
Story behind the patch.

"6:06 p.m. PST (9:06 p.m. EST; 0206 UTC)
The NROL-71 patch is emblazoned on the Delta IV Heavy rocket’s payload fairing. Here’s the story behind the art:"
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:06 PST)
Post by: Steven Pietrobon on 12/09/2018 01:27 am
What the NRO does.

"6:21 p.m. PST (9:21 p.m. EST; 0321 UTC
United Launch Alliance is using its Delta IV Heavy rocket to launch the NROL-71 mission for the National Reconnaissance Office. The NRO is a U.S. government agency responsible for developing, acquiring, launching, and operating America’s intelligence satellites.

The National Reconnaissance Office's systems are critical to national security, U.S. policy makers, and warfighters. These systems provide the foundation for global situational awareness, and address the nation's toughest intelligence challenges. Frequently, NRO systems are the only collectors able to access critical areas of interest, and data from overhead sensors provides unique information and perspectives not available from other sources.

The NRO's key customers and mission partners include: policy makers, the Armed Services, the Intelligence Community, Departments of State, Justice and Treasury, and civil agencies. All of them depend on the unique capabilities NRO systems provide:

* Monitoring the proliferation of weapons of mass destruction
* Tracking international terrorists, drug traffickers, and criminal organizations
* Developing highly accurate military targeting data and bomb damage assessments
* Supporting international peacekeeping and humanitarian relief operations
* Assessing the impact of natural disasters, such as earthquakes, tsunamis, floods, and fires.

Together with other Defense Department satellites, the NRO systems play a crucial role in providing global communications, precision navigation, early warning of missile launches and potential military aggression, signals intelligence, and near real-time imagery to U.S. forces to support the war on terrorism and other continuing operations.

NRO satellites also support civil customers in response to disaster relief and environmental research. Scientists created a global environment database using NRO imagery to help predict climate change, assess crop production, map habitats of endangered species, track oil spills, and study wetlands. NRO data also forms the basis for products that help depict and assess the devastation in areas affected by natural disasters.

The NRO's innovation also inspired technology in everyday life with contributions to medical imaging, global communications, high-definition television, cellular phones, the global positioning system (GPS), and much more.

With its vigilance from above, the NRO gives America's policymakers, intelligence analysts, warfighters and homeland security specialists the critical information they need to keep America safe, secure, and free."
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:06 PST)
Post by: Steven Pietrobon on 12/09/2018 01:40 am
"6:26 p.m. PST (9:26 p.m. EST; 0226 UTC)
Liquid oxygen loading to the three common booster cores has finished. Topping will be completed shortly."
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:06 PST)
Post by: Steven Pietrobon on 12/09/2018 01:48 am
Second stage LOX loading complete.

"6:42 p.m. PST (9:42 p.m. EST; 0242 UTC)
The Delta Cryogenic Second Stage has been loaded with its liquid oxygen supply. The propellant, along with liquid hydrogen that continues to be filled, will be consumed by the stage’s RL10B-2 engine."
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:06 PST)
Post by: Steven Pietrobon on 12/09/2018 01:53 am
Second stage LH2 loading complete.

"6:52 p.m. PST (9:52 p.m. EST; 0252 UTC)
Loading of the upper stage liquid hydrogen fuel tank was just reported complete, giving us a 1.6-million-pound Delta IV Heavy rocket that is fueled for launch at 8:15 p.m. PST (11:15 p.m. EST; 0415 UTC) today. At T-minus 1 hour, 12 minutes and counting, this is Delta Launch Control."
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 02:10 am
Insulation inspections being performed.

"7:04 p.m. PST (10:04 p.m. EST; 0304 UTC)
The standard post-fueling inspections of the rocket’s outer thermal insulation is underway using launch pad cameras."
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 02:14 am
Setting up for engine slew tests.

"7:10 p.m. PST (10:10 p.m. EST; 0310 UTC)
The launch team is setting up for flight slews, the next major milestone in the countdown. This is the steering test patterns run on the Delta IV Heavy rocket nozzles to ensure proper gimbaling during the ascent."
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 02:20 am
Delta IV Heavy description. I've added metric conversions.

"7:15 p.m. PST (10:15 p.m. EST; 0315 UTC)
United Launch Alliance is using the Delta IV Heavy rocket to perform the NROL-71 mission for the National Reconnaissance Office.

This configuration of the Delta IV is created by taking three hydrogen-fueled common booster cores, each with an Aerojet Rocketdyne RS-68A main engine, and strapping them together to provide over two million pounds (9 MN) of Earth-shaking thrust at liftoff. The Delta Cryogenic Second Stage is powered by an Aerojet Rocketdyne RL10B-2 engine.

The Delta IV Heavy launches on the combined power of three RS-68A engines, burning liquid hydrogen and liquid oxygen to produce 702,000 pounds (3122 kN) of thrust each. The port and starboard boosters are more than 150 feet (45.7 m) tall, and the center core with the interstage attached is over 175 feet (53.3 m) in length. They measure 16.7 feet (5.1 m) in diameter.

The Delta Cryogenic Second Stage also burns liquid hydrogen and liquid oxygen to produce 24,750 pounds (110 kN) of thrust from the RL10B-2 engine. The powerplant features a deployable carbon-carbon nozzle that is 7 feet (2.1 m) in diameter.

The Delta IV Heavy has successfully flown into space 10 times before, deploying vital national security payloads for the U.S. Air Force and National Reconnaissance Office, sending NASA’s Orion capsule on its first flight test and propelling the Parker Solar Probe on its voyage to surf through the sun’s atmosphere."
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 02:38 am
Spotlight on today's launch conductor, Dillion Rice.

"7:30 p.m. PST (10:30 p.m. EST; 0330 UTC)
Throughout our countdown today, we are highlighting key individuals who are working this Delta IV Heavy rocket launch for the National Reconnaissance Office.

Next up is Dillion Rice, the United Launch Alliance launch conductor for NROL-71. The launch conductor orchestrates the countdown procedures from the Remote Launch Control Center, located about 11 miles (18 km) from the pad.

”The launch conductor directs and manages all of the integrated countdown activities on launch day. The LC releases the final hold at T-4 minutes and has the capability to manually stop the countdown if a problem arises,” he says.

”I became a launch conductor in 2015 and worked as the assistant LC for multiple missions (approximately a dozen) before being the prime LC for a mission. L-71 is my fifth mission as a launch conductor.”

Rice was born in Jacksonville and grew up in the small town of Callahan, Florida. He has a Bachelor’s Degree in electrical engineering from the University of North Florida and a Master’s Degree in systems engineering from the University of Denver.

”I really enjoy working on cars, but Iately my techie side has me tinkering with home automation stuff.”

His aerospace career began with Boeing in 1999 as an engineer working on the construction of Cape Canaveral’s Space Launch Complex 37 for the Delta IV program.

”My first responsibilities involved the installation and checkout of the communications infrastructure. I worked as a comm engineer, a flight operations integrator and a Range coordinator prior to becoming a launch conductor.”

Coming up at L-7 minutes, you will hear Rice on the webcast perform the final pre-launch readiness poll.

”Our customer continues to entrust us with launching the nation’s most precious space-based assets and capabilities, and I remind myself of that constantly. It’s a big deal. I am honored and humbled to be given the opportunity to lead the launch team through the countdown that lofts these assets to space, and I am very proud of my small contribution to keeping our war-fighters safe and supporting the cause of peace and freedom around the world.”
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 02:41 am
Colour check. Four minutes to webcast start.

"7:38 p.m. PST (10:38 p.m. EST; 0338 UTC)
The steering program file is being loaded into the rocket’s flight computer based on upper level wind data."
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 02:45 am
Not for resale.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Chris Bergin on 12/09/2018 02:47 am
There's the big lady!
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 02:47 am
Looks a bit frosty.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: TJL on 12/09/2018 02:48 am
I believe this is the first time Delta 4 Heavy is launching from Vandenberg with upgraded R-68A engines.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 02:48 am
Weather is 90% go.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 02:49 am
Showing launch profile.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 02:50 am
L-25 minutes.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 02:52 am
Launch centres.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 02:54 am
Launch preparation.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: edkyle99 on 12/09/2018 02:54 am
ULA, please, turn off the scroll!

ughhh.

Ed Kyle
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 02:55 am
L-20 minutes. NRO and mission patches.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 02:57 am
Talking about hydrogen fireball. Two second staggered start helps minimise this.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 02:59 am
Vehicle base. Last mission for ULA this year.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:00 am
Showing launch compendium for this year.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:01 am
L-14 minutes. Into T-4 minute hold for 10 minutes.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:03 am
L-12 minutes. NROL-55 and 37 mission managers.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:05 am
L-10 minutes.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:06 am
L-9 minutes.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Chris Bergin on 12/09/2018 03:07 am
Status check to come out of the BIH next.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:07 am
L-8 minutes. Launch time in ready position.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:09 am
L-7 minutes. Performing poll.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:09 am
L-6 minutes. Go for launch.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:11 am
L-5 minutes.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:12 am
T-4 minutes and counting.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:13 am
T-3 minutes. FTS internal.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:14 am
T-2 minutes. CBC at flight pressure and level.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:15 am
T-1 minute. Range is green.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:16 am
Flame at base. Into hold!
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Chris Bergin on 12/09/2018 03:16 am
Whoa. That was right at the last second.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:16 am
Fire is out. MECO confirmed.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:17 am
Resetting clock to T-4 minutes and holding.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:18 am
Into the hold.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:19 am
Pad is normal. Water is off.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:21 am
At Step 80 fuel is normal. Venting second stage LOX tank. Lock pins are installed.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:22 am
Pad and Prop 1 are normal.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: ChrisGebhardt on 12/09/2018 03:22 am
To confirm, we did have engine start on the DIVH.  Abort was triggered almost right at that time.  MECO was confirmed by ULA engineers several (several) seconds thereafter. 

The "fire" was the start of the nominal burn off of the ambient LH2 the surrounds the DIVH.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:23 am
LOX 2 and 1 are nominal. Aborted due to error detected in the countdown sequence.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Chris Bergin on 12/09/2018 03:24 am
Clip:

https://twitter.com/nextspaceflight/status/1071619528562491392
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Colodie on 12/09/2018 03:25 am
My scatterbrained mind recalls something about once the sparklers go off, it's either launcher or a 24 hour turn around to reset them.

Am I remembering right or has something changed?
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:26 am
FTS is safe and external.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Chris Bergin on 12/09/2018 03:27 am
SCRUB!
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:27 am
Into detanking. Looks like a scrub.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Lee Jay on 12/09/2018 03:28 am
My scatterbrained mind recalls something about once the sparklers go off, it's either launcher or a 24 hour turn around to reset them.

Am I remembering right or has something changed?

That's what I recall.

That was the scariest hold/abort I recall since STS-93.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:28 am
Redline monitor is stopped.
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: edkyle99 on 12/09/2018 03:29 am
The scroll was going to run right through liftoff, obstructing the view.  Awful.
But at least we would know that
"Delta IV Heavy rocket produces 2.1 million pounds of thrust at liftoff."   
"Delta IV Heavy rocket produces 2.1 million pounds of thrust at liftoff." 
"Delta IV Heavy rocket produces 2.1 million pounds of thrust at liftoff." 
"Delta IV Heavy rocket produces 2.1 million pounds of thrust at liftoff." 
"Delta IV Heavy rocket produces 2.1 million pounds of thrust at liftoff." 
Etc.
 - Ed Kyle
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:30 am
Confirmation of scrub. New launch date has not been set. Contact information for ULA.

Webcast has ended.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: flyright on 12/09/2018 03:30 am
The commentator stated the hold occurred at T-00:07, but it sure looked closer than that!
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: yokem55 on 12/09/2018 03:35 am
Has Delta (any variant) had an ignition time abort before?
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: arachnitect on 12/09/2018 03:37 am
Stream archive up on youtube:

https://www.youtube.com/watch?v=ZsX1TmAmeEU?t=2042

watch it again before it disappears.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: SciNews on 12/09/2018 03:43 am
Short summary
https://www.youtube.com/watch?v=fb2_80NjgQU
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Colodie on 12/09/2018 03:46 am
Looks like something happened around T-7, either the abort or the reason for the abort.

There's usually a pretty big fireball around that time, but nothing on this launch.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 03:48 am
Flame appears at T-8 seconds into the count.

Flame peaks at about T-3 seconds.

Also see flame to the left.

Then we see lots of black smoke between the core and the right booster.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: yokem55 on 12/09/2018 03:48 am
Has Delta (any variant) had an ignition time abort before?
Apparently not:
https://twitter.com/harryyoung1990/status/1071626982776037376
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Chris Bergin on 12/09/2018 03:51 am
OK, so this may be a few more days yet. Let's keep the thread at least heavily on topic (I know there will be some Q&A and such).

Just want to add thanks to Steven again for the great updates.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: catdlr on 12/09/2018 03:55 am
Has Delta (any variant) had an ignition time abort before?
Apparently not:
https://twitter.com/harryyoung1990/status/1071626982776037376

The Video from our own Ronsmytheiii
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/09/2018 04:01 am
Unexpected condition at T-7.5 s.

"8:57 p.m. PST (11:57 p.m. EST; 0457 UTC)
(Vandenberg Air Force Base, Calif., Dec. 8, 2018) –The launch of a United Launch Alliance Delta IV Heavy carrying the NROL-71 mission for the National Reconnaissance Office was scrubbed today due to an unexpected condition during terminal count at approximately 7.5 seconds before liftoff. The team is currently reviewing all data and will determine the path forward. A new launch date will be provided when available."
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: zubenelgenubi on 12/09/2018 04:18 am
Correct me if I'm wrong:
Troubleshooting a redundant circuit in the holdfire circuitry is what scrubbed the first launch attempt.

Scrubbing the second launch attempt at T-7.5 seconds would have required the use of the holdfire circuitry?
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: niwax on 12/09/2018 04:27 am
Do we know if the cores need some kind of refurbishment if the insulation has been singed?
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: DaveS on 12/09/2018 04:29 am
Correct me if I'm wrong:
Troubleshooting a redundant circuit in the holdfire circuitry is what scrubbed the first launch attempt.

Scrubbing the second launch attempt at T-7.5 seconds would have required the use of the holdfire circuitry?
No. The holdfire command is an Range-only command which is used by the ROC to manually command a hold. It has nothing to do with Terminal Countdown Sequencer Rack (TCSR) which is what kicked them out of the count.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Star One on 12/09/2018 08:36 am
Someone suggested around the time of the Parker Solar Probe scrub, that this vehicle gets a lot of scrubs because it just doesn’t fly very often?
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: ugordan on 12/09/2018 11:15 am
Someone suggested around the time of the Parker Solar Probe scrub, that this vehicle gets a lot of scrubs because it just doesn’t fly very often?

Yes, it appears to be much more... temperamental, even in the single-stick configuration than the Atlas. Mostly on the GSE side, IIRC.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: MattBaker on 12/09/2018 11:45 am
And the Delta IV (any configuration) doesn't fly very often from Vandenberg either, two mediums in January and 2016, the last Heavy was over five years ago. It's pretty much exclusively an NRO launchpad and they only need it every year or two.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: LouScheffer on 12/09/2018 04:49 pm
Someone suggested around the time of the Parker Solar Probe scrub, that this vehicle gets a lot of scrubs because it just doesn’t fly very often?
Yes, this same observation (https://forum.nasaspaceflight.com/index.php?topic=37070.msg1846210#msg1846210), speculating on the same cause, was made at the time of the PSP scrubs...
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: edkyle99 on 12/09/2018 04:53 pm
Has Delta (any variant) had an ignition time abort before?
Apparently not:
The previous abort shows that the ROFIs produce a lot of smoke all by themselves, possibly accounting for much of the smoke seen last night.

 - Ed Kyle
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: worldtimedate on 12/10/2018 12:13 am
https://twitter.com/ulalaunch/status/1071622914833674240

https://twitter.com/ulalaunch/status/1071631159153451008

Delta 4-Heavy countdown aborted moments before launch
https://spaceflightnow.com/2018/12/09/delta-4-heavy-countdown-aborted-moments-before-launch/
Title: Re: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Newton_V on 12/10/2018 01:01 am
To confirm, we did have engine start on the DIVH.  Abort was triggered almost right at that time.  MECO was confirmed by ULA engineers several (several) seconds thereafter. 

The "fire" was the start of the nominal burn off of the ambient LH2 the surrounds the DIVH.

The abort happened before engine start.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Lee Jay on 12/10/2018 02:55 am
To confirm, we did have engine start on the DIVH.  Abort was triggered almost right at that time.  MECO was confirmed by ULA engineers several (several) seconds thereafter. 

The "fire" was the start of the nominal burn off of the ambient LH2 the surrounds the DIVH.

The abort happened before engine start.

Then I'm confused. If the engines didn't start, why did they confirm MECO?
Title: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Lars-J on 12/10/2018 03:26 am
To confirm, we did have engine start on the DIVH.  Abort was triggered almost right at that time.  MECO was confirmed by ULA engineers several (several) seconds thereafter. 

The "fire" was the start of the nominal burn off of the ambient LH2 the surrounds the DIVH.

The abort happened before engine start.

Then I'm confused. If the engines didn't start, why did they confirm MECO?

It’s the dark secret of rocket launch broadcasts... most of the time they read off a script. :-) All providers do this more or less.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Newton_V on 12/10/2018 03:47 am
To confirm, we did have engine start on the DIVH.  Abort was triggered almost right at that time.  MECO was confirmed by ULA engineers several (several) seconds thereafter. 

The "fire" was the start of the nominal burn off of the ambient LH2 the surrounds the DIVH.

The abort happened before engine start.

Then I'm confused. If the engines didn't start, why did they confirm MECO?
Inexperience maybe?  Confusion?  There's a lot going on in a few seconds there.  I didn't hear what was called, but a "script" has nothing to do with real callouts of telemetry.  Scripts are for calling out major events by a "PR" person, looking at nominal preflight timelines, and a list of mark events as they're happening.  They would have called liftoff at time-zero, even if the engines shut off at T-1 seconds because it's takes a second to say "liftoff".
On the internal nets are chief engineers or certified people looking at real-time telemetry and making callouts and more detailed information about specific systems.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Lee Jay on 12/10/2018 04:03 am
To confirm, we did have engine start on the DIVH.  Abort was triggered almost right at that time.  MECO was confirmed by ULA engineers several (several) seconds thereafter. 

The "fire" was the start of the nominal burn off of the ambient LH2 the surrounds the DIVH.

The abort happened before engine start.

Then I'm confused. If the engines didn't start, why did they confirm MECO?

It’s the dark secret of rocket launch broadcasts... most of the time they read off a script. :-) All providers do this more or less.

Yeah...but it sounded like it came from the loop, not the announcer, and it was quite a bit after the event.  Also, the announcer wouldn't have MECO in the script until many minutes later and even then, only if there were a launch.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: RonM on 12/10/2018 04:40 am
To confirm, we did have engine start on the DIVH.  Abort was triggered almost right at that time.  MECO was confirmed by ULA engineers several (several) seconds thereafter. 

The "fire" was the start of the nominal burn off of the ambient LH2 the surrounds the DIVH.

The abort happened before engine start.

Then I'm confused. If the engines didn't start, why did they confirm MECO?

It’s the dark secret of rocket launch broadcasts... most of the time they read off a script. :-) All providers do this more or less.

Yeah...but it sounded like it came from the loop, not the announcer, and it was quite a bit after the event.  Also, the announcer wouldn't have MECO in the script until many minutes later and even then, only if there were a launch.

They follow check lists. Confirming MECO is probably on the page for last few seconds launch abort.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: clongton on 12/10/2018 12:38 pm
So did the TCSR command the abort or was it manually initiated following some telemetry observation?
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Newton_V on 12/10/2018 03:59 pm
So did the TCSR command the abort or was it manually initiated following some telemetry observation?
TCSR commanded abort.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: dglow on 12/10/2018 04:01 pm
To confirm, we did have engine start on the DIVH.  Abort was triggered almost right at that time.  MECO was confirmed by ULA engineers several (several) seconds thereafter. 

The "fire" was the start of the nominal burn off of the ambient LH2 the surrounds the DIVH.

The abort happened before engine start.

Then I'm confused. If the engines didn't start, why did they confirm MECO?

The abort occurred before any engines ignited, yes – and while LH2 wasn't flowing yet it would have been very soon. But some amount of LOX had been released for engine chilldown, so I'd wager MECO was called to verify all prop valves were fully closed.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Michael Baylor on 12/10/2018 07:56 pm
Video of the scrub with good audio.
 (https://www.flickr.com/photos/[email protected]/46211674952/in/album-72157703030620091/)
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Steven Pietrobon on 12/10/2018 09:21 pm
The abort occurred before any engines ignited, yes – and while LH2 wasn't flowing yet it would have been very soon. But some amount of LOX had been released for engine chilldown, so I'd wager MECO was called to verify all prop valves were fully closed.

What was the source of the fire then? The LOX gas burning the foam and other materials on the vehicle?
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: The Vorlon on 12/10/2018 10:24 pm
I thought engine chilldown was with LH2, which hung around the base of the rocket if not burned off.  There would be no other reasonable reason for so much hydrogen to be around the rocket--if that much was  departing the tanks from osmosis, they would be empty quickly.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Grandpa to Two on 12/10/2018 10:55 pm
The abort occurred before any engines ignited, yes – and while LH2 wasn't flowing yet it would have been very soon. But some amount of LOX had been released for engine chilldown, so I'd wager MECO was called to verify all prop valves were fully closed.

What was the source of the fire then? The LOX gas burning the foam and other materials on the vehicle?
I thought engine chilldown was with LH2, which hung around the base of the rocket if not burned off.  There would be no other reasonable reason for so much hydrogen to be around the rocket--if that much was  departing the tanks from osmosis, they would be empty quickly.

On the pre- launch broadcast an engineer was answering questions regarding staggered start of the engines and the H2 gas burn off. He said “...hydrogen that we’ve introduced first in order to chill the hardware prior to starting up and spinning up the pumps...”. That’s the cause of the H2 gas that goes down into the flame tunnel and gathers around the base of the common cores prior to lift off.
EDIT; as corrected by Jim, the engine are not spun up by O2 but in fact by pressurized helium. Incorrect statements removed.  🤭
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Jim on 12/11/2018 12:38 am
I’d imagine by introducing chilled O2 to spin up the engines that makes for a nice flame up once the sparklers start.

O2 is not used for engine spin up
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: eeergo on 12/12/2018 01:21 pm
No new launch date yet, so probably standing down definitely from Friday:

https://twitter.com/NatReconOfc/status/1072591248949764102
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: Newton_V on 12/12/2018 07:06 pm
No new launch date yet, so probably standing down definitely from Friday:
Maybe same launch date as GPS?
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: DaveS on 12/13/2018 05:35 pm
December 18, 5:57 pm PST is the T0 target:

https://twitter.com/ulalaunch/status/1073284827577769984 (https://twitter.com/ulalaunch/status/1073284827577769984)
Title: Re: Delta IV-H - NROL-71 - December 18, 2018 - VAFB SLC-6 (17:57 PST)
Post by: MattBaker on 12/13/2018 06:54 pm
Wednesday, December 19, 1:57 UTC for everybody needing the more usual conversion to their local time.
Title: Re: Delta IV-H - NROL-71 - December 18, 2018 - VAFB SLC-6 (17:57 PST)
Post by: worldtimedate on 12/13/2018 07:41 pm
Wednesday, December 19, 1:57 UTC for everybody needing the more usual conversion to their local time.

Here is the conversion to Different Local Time of US Timezone

Location             Local Time                                      TimeZone             UTC Offset
--------------------------------------------------------------------------------------------------------------------------------
Honolulu, USA       Tuesday, December 18, 2018 at 15:57:00 PM          HST        UTC-10:00 
Los Angeles, USA    Tuesday, December 18, 2018 at 17:57:00 PM          PST        UTC-08:00 
Denver, USA          Tuesday, December 18, 2018 at 18:57:00 PM          MST             UTC-07:00 
Chicago, USA          Tuesday, December 18, 2018 at 19:57:00 PM          CST             UTC-06:00 
New York, USA         Tuesday, December 18, 2018 at 20:57:00 PM          EST            UTC-05:00
Halifax, Canada              Tuesday, December 18, 2018 at 21:57:00 PM          AST        UTC-04:00 
Corresponding GMT     Wednesday, December 19, 2018 at 01:57:00 AM     GMT             UTC+00:00


Title: Re: SCRUB: Delta IV-H - NROL-71 - December 8, 2018 - VAFB SLC-6 (20:15 PST)
Post by: worldtimedate on 12/13/2018 09:06 pm
No new launch date yet, so probably standing down definitely from Friday:

https://twitter.com/NatReconOfc/status/1072591248949764102


National Reconnaissance Office (NRO) (http://www.nro.gov/) has updated the launch date. The new Launch Date is Tuesday, Dec. 18. Launch time is 5:57 p.m. PST/8:57 p.m. EST.

https://twitter.com/ulalaunch/status/1073284827577769984
Title: Re: Delta IV-H - NROL-71 - December 18/19, 2018 - VAFB SLC-6 (1757 PST, 0157 UTC)
Post by: catdlr on 12/14/2018 09:21 am
Dec. 18 Live Launch Broadcast: Delta IV NROL-71


United Launch Alliance
Scheduled for Dec 18, 2018

Tune in LIVE to watch the United Launch Alliance Delta IV Heavy rocket lift off with the NROL-71 mission for the National Reconnaissance Office.

https://www.youtube.com/watch?v=Cwb0leeydEs
Title: Re: Delta IV-H - NROL-71 - December 18/19, 2018 - VAFB SLC-6 (1757 PST, 0157 UTC)
Post by: docmordrid on 12/14/2018 06:08 pm
AF SMC @AF_SMC
 Tuesday will be a launch doubleheader for SMC. A new launch date for NROL-71 has been set for Dec 18 from VAFB, California. The launch time is 5:57 pm PST. Earlier in the day, GPS III SV01 is set to launch aboard a Falcon 9 from CCAFS, Florida.
1:42 PM - Dec 13, 2018

https://twitter.com/AF_SMC/status/1073286960909709312
Title: Re: Delta IV-H - NROL-71 - December 18, 2018 - VAFB SLC-6 (17:57 PST)
Post by: russianhalo117 on 12/15/2018 05:57 pm
Wednesday, December 19, 1:57 UTC for everybody needing the more usual conversion to their local time.

Here is the conversion to Different Local Time of US Timezone

Location             Local Time                                      TimeZone             UTC Offset
--------------------------------------------------------------------------------------------------------------------------------
Los Angeles, USA    Tuesday, December 18, 2018 at 17:57:00 PM          PST        UTC-08:00 
Denver, USA          Tuesday, December 18, 2018 at 18:57:00 PM             MST               UTC-07:00 
Chicago, USA          Tuesday, December 18, 2018 at 19:57:00 PM             CST               UTC-06:00 
New York, USA         Tuesday, December 18, 2018 at 20:57:00 PM            EST             UTC-05:00 
Corresponding GMT     Wednesday, December 19, 2018 at 01:57:00 AM       GMT              UTC+00:00
You left out Atlantic Standard Time which is used by some entities in the US.
Title: Re: Delta IV-H - NROL-71 - December 18/19, 2018 - VAFB SLC-6 (1757 PST, 0157 UTC)
Post by: catdlr on 12/16/2018 11:43 pm
Launch Alert
1:50 PM December 16, 2018


60 YEARS AGO TODAY

The first-ever missile launch took place from Vandenberg AFB 60 years ago today. The vehicle was a Thor intermediate range ballistic missile (IRBM). The launch was conducted from pad 75-1-1 and the operation was called "Tune Up."

DELTA IV HEAVY UPDATE

The following are excerpts from a ULA media update issued yesterday:

Everything is progressing toward the ULA Delta IV Heavy launch carrying the NROL-71 mission for the National Reconnaissance Office. The mission is set to lift off on a Delta IV Heavy rocket on Tuesday, Dec. 18 from Space Launch Complex-6 at Vandenberg Air Force Base in California. Today’s forecast shows a 20 percent chance of favorable weather conditions for launch. The launch time is 5:57 p.m. PST.

Launch Forecast Summary:
Overall probability of violating weather constraints: 80%
Primary concerns: Ground Winds
Overall probability of violating weather constraints for 24 hour delay: 20%
Primary concern: Ground Winds

Launch Broadcast
Live broadcast coverage of the launch will begin at 5:37 p.m. PST on Dec. 18.
Live launch updates and webcast available at:  www.ulalaunch.com

*Note: Satellite frequencies changed from previous attempts

ALL TIMES PACIFIC

TUESDAY, DECEMBER 18
BARS + TONE – 5:06 P.M.
PROGRAM START –  5:37 P.M.
LAUNCH –  5:57 P.M

DIGITAL SATELLITE C-BAND DOWNLINK
HD FORMAT
SATELLITE — G3
TRANSPONDER — 2
BAND — C-BAND DIGITAL
ORBITAL POSITION — 95°W
HD BANDWIDTH — 18 MHz (HALF TRANSPONDER)
UPLINK — 5, 974.000 MHz (Horizontal)*
DOWNLINK — 3,7 49.000 MHz (Vertical)*
SYMBOL RATE — 13
FEC — ¾
DATA RATE — 17.9705
DVBS – QPSK
MPEG 2
AUDIO EMBEDDED

Webcast available at  www.ulalaunch.com  and  www.youtube.com/unitedlaunchalliance
Title: Re: Delta IV-H - NROL-71 - December 18/19, 2018 - VAFB SLC-6 (1757 PST, 0157 UTC)
Post by: ulm_atms on 12/17/2018 12:28 am
Anyone know the reason why the TCSR aborted the launch?  They said it was an unexpected condition but I was just curious if anyone knew what that condition was.  With week+ slide to the right...I know it wasn't something simple.  But because this is a NROL launch...we may never know.

Title: Re: Delta IV-H - NROL-71 - December 18/19, 2018 - VAFB SLC-6 (1757 PST, 0157 UTC)
Post by: worldtimedate on 12/17/2018 12:36 am
https://twitter.com/ulalaunch/status/1074051661214167040?p=v

Delta IV NROL-71 Mission
https://www.ulalaunch.com/missions/delta-iv-nrol-71
Title: Re: Delta IV-H - NROL-71 - December 18/19, 2018 - VAFB SLC-6 (1757 PST, 0157 UTC)
Post by: Steven Pietrobon on 12/17/2018 09:43 am
Anyone know the reason why the TCSR aborted the launch?

There hasn't been a public statement yet on what caused the abort. Hopefully they'll say something during the live coverage of the next attempt.
Title: Re: Delta IV-H - NROL-71 - December 18/19, 2018 - VAFB SLC-6 (1757 PST, 0157 UTC)
Post by: TGMetsFan98 on 12/17/2018 01:46 pm
https://twitter.com/torybruno/status/1072308558212067328?s=21
Title: Re: Delta IV-H - NROL-71 - December 18/19, 2018 - VAFB SLC-6 (1757 PST, 0157 UTC)
Post by: Lars-J on 12/17/2018 04:34 pm
https://twitter.com/torybruno/status/1072308558212067328
Take off the ?s=21 from the URL, otherwise the forum software won't auto-embed it.
Title: Re: Delta IV-H - NROL-71 - December 18/19, 2018 - VAFB SLC-6 (1757 PST, 0157 UTC)
Post by: Jim on 12/17/2018 05:20 pm
https://twitter.com/torybruno/status/1072308558212067328
Take off the ?s=21 from the URL, otherwise the forum software won't auto-embed it.

That is called the pain chart/table.
Title: Re: Delta IV-H - NROL-71 - December 18/19, 2018 - VAFB SLC-6 (1757 PST, 0157 UTC)
Post by: Newton_V on 12/17/2018 05:59 pm
That is called the pain chart/table.

Yes, the pain level on DIV Heavy is T-7 seconds, so luckily it scrubbed before that last week.
Title: Re: Delta IV-H - NROL-71 - December 18/19, 2018 - VAFB SLC-6 (1757 PST, 0157 UTC)
Post by: FutureSpaceTourist on 12/17/2018 06:18 pm
https://twitter.com/ulalaunch/status/1074743040906907648

Quote
We are go for launch! The Launch Readiness Review (LRR) was completed this morning. At the conclusion of the meeting, senior leaders were polled and gave a unanimous “go” for launch. http://bit.ly/div_nrol71
Title: Re: Delta IV-H - NROL-71 - December 18/19, 2018 - VAFB SLC-6 (1757 PST, 0157 UTC)
Post by: Jdeshetler on 12/18/2018 12:15 am
The 19 mph ground wind is forecast for tomorrow so let hope it may died down a bit once the sun comes down for 5:57pm launch.
Title: Re: Delta IV-H - NROL-71 - December 18/19, 2018 - VAFB SLC-6 (1757 PST, 0157 UTC)
Post by: Earendil on 12/18/2018 03:24 am
Dam, first time in the USA and long time lurker here.. was so excited for a launch to happen mere  2hrs drive from me.. and now this wind...

So there is 80% chance for the launch not happening..  What would you advice? To head up after the next forecast, about noon tomorrow? Renwick Ave or Floradale Ave ?
Title: Re: Delta IV-H - NROL-71 - December 18/19, 2018 - VAFB SLC-6 (1757 PST, 0157 UTC)
Post by: DaveS on 12/18/2018 07:15 pm
Done for the the day:

https://twitter.com/ulalaunch/status/1075122108785516544
Title: Re: Delta IV-H - NROL-71 - December 18/19, 2018 - VAFB SLC-6 (1757 PST, 0157 UTC)
Post by: terryy on 12/19/2018 01:58 am
Dam, first time in the USA and long time lurker here.. was so excited for a launch to happen mere  2hrs drive from me.. and now this wind...

So there is 80% chance for the launch not happening..  What would you advice? To head up after the next forecast, about noon tomorrow? Renwick Ave or Floradale Ave ?

If you are still in town on Wednesday for the next launch attempt, the weather looks better.  As for viewing spot, I would suggest going to the Surf Beach Amtrak station.  It was open to the public during the initial launch attempt on the 7th and 8th.  I would suggest you get there at least 2 hours before launch.  It got pretty crowded after that when I was there on the 8th.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: hootowls on 12/19/2018 02:54 am
Dam, first time in the USA and long time lurker here.. was so excited for a launch to happen mere  2hrs drive from me.. and now this wind...

So there is 80% chance for the launch not happening..  What would you advice? To head up after the next forecast, about noon tomorrow? Renwick Ave or Floradale Ave ?

If you are still in town on Wednesday for the next launch attempt, the weather looks better.  As for viewing spot, I would suggest going to the Surf Beach Amtrak station.  It was open to the public during the initial launch attempt on the 7th and 8th.  I would suggest you get there at least 2 hours before launch.  It got pretty crowded after that when I was there on the 8th.


Looks like those days are over - you will now see a roadblock prior to Ocean Park and Surf Station, same as is done on other launches.  This started today.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: Jdeshetler on 12/19/2018 04:07 am
Shot with 4K during our remote camera setups last Monday.

https://www.youtube.com/watch?v=6oh6MhSLMIE
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: Ronsmytheiii on 12/19/2018 07:33 pm
https://twitter.com/ulalaunch/status/1075446747470561285
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: RocketLover0119 on 12/19/2018 09:45 pm
from the live blog, a brief hold was called, now underway again:

"T-minus 2 hours, 53 minutes and holding. Fueling operations are on hold while the team is troubleshooting a valve at the launch pad. A red team is being sent to Space Launch Complex 6 to manually close the valve."

"The valve has been closed remotely and fueling operations are resuming."
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: x15captain13 on 12/19/2018 11:01 pm
Dam, first time in the USA and long time lurker here.. was so excited for a launch to happen mere  2hrs drive from me.. and now this wind...

So there is 80% chance for the launch not happening..  What would you advice? To head up after the next forecast, about noon tomorrow? Renwick Ave or Floradale Ave ?

If you are still in town on Wednesday for the next launch attempt, the weather looks better.  As for viewing spot, I would suggest going to the Surf Beach Amtrak station.  It was open to the public during the initial launch attempt on the 7th and 8th.  I would suggest you get there at least 2 hours before launch.  It got pretty crowded after that when I was there on the 8th.


Looks like those days are over - you will now see a roadblock prior to Ocean Park and Surf Station, same as is done on other launches.  This started today.

Did you see the roadblock today?
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: Earendil on 12/19/2018 11:29 pm
There is a roadblock..

Sent from my BLA-L29 using Tapatalk

Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: ChrisGebhardt on 12/19/2018 11:38 pm
Fueling is complete.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: RocketLover0119 on 12/19/2018 11:57 pm
Picture of Delta IV Heavy tanking ahead of launch, on the live blog, link below for those who want to follow along prior to the webcast:

https://www.ulalaunch.com/missions/delta-iv-nrol-71
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: Steven Pietrobon on 12/20/2018 12:09 am
https://www.ulalaunch.com/missions/delta-iv-nrol-71

"4:55 p.m. PST (7:55 p.m. EST; 0055 UTC)
The standard post-fueling inspections of the rocket’s outer thermal insulation is underway using launch pad cameras."
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: RocketLover0119 on 12/20/2018 12:10 am
Launch time adjusted to 5:49 PT, due to the hold earlier in the count.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: Steven Pietrobon on 12/20/2018 12:11 am
Livestream.

https://www.youtube.com/watch?v=Cwb0leeydEs
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: ZachS09 on 12/20/2018 12:19 am
Since the launch time has been moved by five minutes, the webcast should start in about ten minutes.

EDIT: Never mind. It'll start earlier.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: Steven Pietrobon on 12/20/2018 12:20 am
Colour check.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: Steven Pietrobon on 12/20/2018 12:24 am
T-25 minutes. Not for resale notice.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: ZachS09 on 12/20/2018 12:25 am
This is Take 4 of the NROL-71 mission. A Delta IV Heavy rocket, flying for the eleventh time, will loft the NROL-71 payload into space. We don't know its targeted orbit, or the purpose of the payload, so ULA will be concluding its webcast as soon as payload fairing jettison occurs.

Launch is scheduled for 01:49 UTC on the 20th, or 5:49 PM local time on the 19th. The previous attempt has halted at the T-7.5 second mark, half a second before the right side booster was to start up.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: ZachS09 on 12/20/2018 12:25 am
Working issue about a build-up of hydrogen gas underneath the main engines.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: Steven Pietrobon on 12/20/2018 12:25 am
Trying to resolve a high level hydrogen issue at base of vehicle.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: Steven Pietrobon on 12/20/2018 12:26 am
Showing NROL-71 flight profile.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: ZachS09 on 12/20/2018 12:27 am
Mark events during ascent.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: Steven Pietrobon on 12/20/2018 12:29 am
L-20 minutes.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: ZachS09 on 12/20/2018 12:29 am
20 minutes to liftoff.

Six minutes to the T-4 minute hold.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: ZachS09 on 12/20/2018 12:32 am
CBC LOX fill-and-drain cycle test underway.

The LH2 fill-and-drain cycle test did start earlier.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: ZachS09 on 12/20/2018 12:34 am
Delta IV Heavy rocket specs.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: Steven Pietrobon on 12/20/2018 12:35 am
Vehicle description.

L-15 minutes. Launch preparation video.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: ZachS09 on 12/20/2018 12:36 am
Explaining NRO's purpose.

Should be in the T-4 minute hold for ten minutes.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: Steven Pietrobon on 12/20/2018 12:36 am
NRO and mission logos.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: ZachS09 on 12/20/2018 12:38 am
Anomaly Chief reports that the left side booster's engine had a large build up of hydrogen gas underneath, and after some haz-gas checks, there may be a leak in that area.

Final decision is that we're in a no-fly condition.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: Steven Pietrobon on 12/20/2018 12:38 am
L-12 minutes. Have a leak in port booster. Above level. Can't fly in this condition.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: ZachS09 on 12/20/2018 12:39 am
And we have scrubbed the launch attempt for tonight.

Mission Director declared the scrub and a 24-hour turnaround. Next attempt will be tomorrow at 01:31 UTC.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: Steven Pietrobon on 12/20/2018 12:40 am
L-10 minutes. They should be calling a scrub soon.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: RocketLover0119 on 12/20/2018 12:40 am
SCRUB due to the hydrogen leak, 24 hour turnaround.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: ZachS09 on 12/20/2018 12:41 am
Webcast has just ended.

So, with that being said, have a good night, and I'll be back for the fifth take of this Delta IV Heavy launch.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: Steven Pietrobon on 12/20/2018 12:42 am
Its official. Scrub and 24 hour recycle. 17:31 PST (01:31 UTC) launch time for tomorrow.

Webcast has ended.
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 19/20, 2018 - SLC-6 (1744 PST, 0144 UTC)
Post by: SciNews on 12/20/2018 01:15 am
scrubb summary
https://www.youtube.com/watch?v=oilSB50DzNI
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 19/20, 2018 - SLC-6 (1744 PST, 0144 UTC)
Post by: jacqmans on 12/20/2018 07:38 am
December 19, ULA photos
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 19/20, 2018 - SLC-6 (1744 PST, 0144 UTC)
Post by: jacqmans on 12/20/2018 07:38 am
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 19/20, 2018 - SLC-6 (1744 PST, 0144 UTC)
Post by: Jdeshetler on 12/20/2018 02:56 pm
Check out the unusual clear views shot from hill above SpaceX pad before the Delta Heavy NROL-71 was scrubbed last night.
https://www.youtube.com/watch?v=imC8LSseJ0A
Title: Re: SCRUB: Delta IV-H - NROL-71 - December 19/20, 2018 - SLC-6 (1744 PST, 0144 UTC)
Post by: Galactic Penguin SST on 12/20/2018 03:11 pm
https://twitter.com/ulalaunch/status/1075783663323897856
Title: Re: Delta IV-H - NROL-71 - NET December 30, 2018
Post by: TGMetsFan98 on 12/26/2018 08:22 pm
If anyone knows a T-0 for a potential Sunday attempt, please do share!
Title: Re: Delta IV-H - NROL-71 - NET December 30, 2018
Post by: Ted Molczan on 12/26/2018 09:34 pm
If anyone knows a T-0 for a potential Sunday attempt, please do share!

To-date the publicly released launch time has moved earlier at the mean rate of 12.9 min/d. On that basis, launch would be near 2018 Dec 30 15:22 PST (23:22 UTC).

Ted Molczan
Title: Re: Delta IV-H - NROL-71 - NET Jan 6, 2019
Post by: Chris Bergin on 12/28/2018 03:20 pm
NET Jan 6:

 The United Launch Alliance Delta IV Heavy carrying the NROL-71 mission will launch no earlier than Sunday, Jan. 6, 2019

https://twitter.com/ulalaunch/status/1078686393755467777
Title: Re: Delta IV-H - NROL-71 - NET Jan 6, 2019
Post by: TJL on 12/28/2018 03:47 pm
NET Jan 6:

 The United Launch Alliance Delta IV Heavy carrying the NROL-71 mission will launch no earlier than Sunday, Jan. 6, 2019

https://twitter.com/ulalaunch/status/1078686393755467777
Too bad...once again there will not be two Delta IV Heavy launches in the same calendar year.
Title: Re: Delta IV-H - NROL-71 - NET Jan 6, 2019
Post by: Newton_V on 12/28/2018 04:26 pm
Too bad...once again there will not be two Delta IV Heavy launches in the same calendar year.
Possible if you use Chinese calendar.
Anyways, I just don't see this launching before F9, unless F9 slips quite a few days.
Title: Re: Delta IV-H - NROL-71 - NET Jan 6, 2019
Post by: zubenelgenubi on 12/28/2018 05:42 pm
To-date the publicly released launch time has moved earlier at the mean rate of 12.9 min/d.<snip>
Ted Molczan

Dec. 30 + 7 days = Jan. 6 (NET date)

7 days x 12.9 min/day = (rounded) 90 min

Previous launch time - interval minutes = approx. launch time on new date

23:22 - 0:90 = 21:52 (UTC)

(Progression works with original launch UTC dates/times on Dec. 8, Dec. 9, Dec. 19, Dec. 20, Dec. 30.)

21:52 UTC = 13:52 PST
Title: Re: Delta IV-H - NROL-71 - NET Jan 6, 2019
Post by: Llian Rhydderch on 12/29/2018 03:53 am
Too bad...once again there will not be two Delta IV Heavy launches in the same calendar year.
Possible if you use Chinese calendar.
Anyways, I just don't see this launching before F9, unless F9 slips quite a few days.

It doesn't really matter what the delays are here.  It's not like there has been much demand for use of the Delta IV launch pad; only five launches scheduled for the one monopsony DIV customer over the the next five years, out to 2023. 

It is quite the opposite with the competition for pad use from the new entrant(s) into the space launch market.

Great graph in this article (https://en.wikipedia.org/wiki/Space_launch_market_competition) showing that phenomenon over the past few years.  The Boeing/LockMart, Proton, and "other" are all losing share; Ariane is holding about even. 
Title: Re: Delta IV-H - NROL-71 - NET Jan 6, 2019
Post by: Newton_V on 12/29/2018 01:27 pm
Too bad...once again there will not be two Delta IV Heavy launches in the same calendar year.
Possible if you use Chinese calendar.
Anyways, I just don't see this launching before F9, unless F9 slips quite a few days.

It doesn't really matter what the delays are here.  It's not like there has been much demand for use of the Delta IV launch pad; only five launches scheduled for the one monopsony DIV customer over the the next five years, out to 2023. 

It is quite the opposite with the competition for pad use from the new entrant(s) into the space launch market.

Great graph in this article (https://en.wikipedia.org/wiki/Space_launch_market_competition) showing that phenomenon over the past few years.  The Boeing/LockMart, Proton, and "other" are all losing share; Ariane is holding about even.
What's the point you are trying to make regarding L-71?  We already know the demand for heavy lift launch from WR is about 1 launch every 2 to 3 years.  Even though another LV now exists, it still can't meet the mission requirements (not talking about weight to orbit).
Title: Re: Delta IV-H - NROL-71 - NET Jan ? 2019
Post by: zubenelgenubi on 01/01/2019 04:24 pm
Cross-post:
https://twitter.com/MXSOCAL/status/1079806167071612929
Quote
Latest information from #Vandenberg regarding the #DeltaIV-  the rocket continues to have issues and the launch schedule is now indefinite.  They expect to have an update next week.
Title: Re: Delta IV-H - NROL-71 - NET Jan 6, 2019
Post by: Jdeshetler on 01/02/2019 04:18 pm
ULA - Delta Heavy - NROL 71 - Pre Launch - Timelapse 720

Very windy the day before the latest scrubbed due to leaking hydrogen.

https://www.youtube.com/watch?v=kXEye8FmhmU
Title: Re: Delta IV-H - NROL-71 - NET Jan 6, 2019
Post by: Chris Bergin on 01/03/2019 03:43 pm
Tanking test today, per L2.
Title: Re: Delta IV-H - NROL-71 - NET Jan 6, 2019
Post by: ZachS09 on 01/03/2019 04:13 pm
Quick question: why does the thread title list the launch data as January 6th?

Wasn't it indefinitely delayed a while ago?
Title: Re: Delta IV-H - NROL-71 - NET Jan 6, 2019
Post by: gongora on 01/03/2019 04:21 pm
Quick question: why does the thread title list the launch data as January 6th?

Wasn't it indefinitely delayed a while ago?

The thread says "NET" Jan. 6, which technically is still true, although not for much longer.  I guess I can just change it to NET January.
Title: Re: Delta IV-H - NROL-71 - NET Jan 6, 2019
Post by: Newton_V on 01/03/2019 04:57 pm
Quick question: why does the thread title list the launch data as January 6th?

Wasn't it indefinitely delayed a while ago?

The thread says "NET" Jan. 6, which technically is still true, although not for much longer.  I guess I can just change it to NET January.
The launch date has been on hold, so to speak, since 19 December.  Some of these changing NET dates are just placeholders until this test today could be scheduled.  Because of the holidays, etc. it was difficult to nail down a test date.  And with the SpX hot fire and launch, the NET ILC is now the 11th.   If all goes well today, I expect that date to be good.  We shall see.
Title: Re: Delta IV-H - NROL-71 - NET January 11, 2019
Post by: Chris Bergin on 01/03/2019 05:21 pm
Tanking test confirmed
Tanking test today, per L2.

Confirmed:

https://twitter.com/SpacecoastPix/status/1080890968289624064
Title: Re: Delta IV-H - NROL-71 - NET January 11, 2019
Post by: zubenelgenubi on 01/04/2019 09:14 pm
<snip> And with the SpX hot fire and launch, the NET ILC is now the 11th. <snip>

ILC = Initial Launch Capability
Title: Re: Delta IV-H - NROL-71 - NET Jan 11, 2019
Post by: zubenelgenubi on 01/04/2019 09:27 pm
To-date the publicly released launch time has moved earlier at the mean rate of 12.9 min/d.<snip>
Ted Molczan

Dec. 30 + 7 days = Jan. 6 (NET date)

7 days x 12.9 min/day = (rounded) 90 min

Previous launch time - interval minutes = approx. launch time on new date

23:22 - 0:90 = 21:52 (UTC)

(Progression works with original launch UTC dates/times on Dec. 8, Dec. 9, Dec. 19, Dec. 20, Dec. 30.)

21:52 UTC = 13:52 PST

Extrapolating to Jan. 11:

5 days x -12.9 min/day = (rounded) -65 min

21:52 - 0:65 = 20:47 (UTC)

20:47 UTC = 12:47 PST
Title: Re: Delta IV-H - NROL-71 - NET January 11, 2019
Post by: eeergo on 01/05/2019 01:43 pm
Confirmed:
https://twitter.com/SpacecoastPix/status/1080890968289624064 (https://twitter.com/SpacecoastPix/status/1080890968289624064)

Any update on how the tanking test went (or if it happened at all)?

EDIT: Ok, I'm self-answering since I just found this tweet:


https://twitter.com/MXSOCAL/status/1081258057869316096
Title: Re: Delta IV-H - NROL-71 - NET January 11, 2019
Post by: Chris Bergin on 01/05/2019 04:21 pm
ULA:

ULA Delta IV Heavy NROL-71 Launch Date Under Review

(Vandenberg Air Force Base, Calif. Jan. 5, 2019) – The United Launch Alliance Delta IV Heavy carrying the NROL-71 mission launch date is under review. A new launch date and time will be provided pending the results of additional testing.

“We continue to remedy the technical issues that caused the last scrub of the Delta IV Heavy, and are working with our partners, the National Reconnaissance Office and the U.S. Air Force, to ensure that we fly when it is safe to do so,” said Gary Wentz, vice president of Government and Commercial programs, “we understand that this is a high-priority mission for the nation’s warfighters and we take our commitment to safety and mission assurance seriously.”
Title: Re: Delta IV-H - NROL-71 - NET January 11, 2019
Post by: ugordan on 01/05/2019 04:26 pm
That update suggests the recent tanking test didn't really flush out all the gremlins?
Title: Re: Delta IV-H - NROL-71 - NET January 11, 2019
Post by: FutureSpaceTourist on 01/06/2019 11:09 pm
https://twitter.com/spcplcyonline/status/1082039666717745153

Quote
In response to my question about the launch date for #NROL71, ULA said "Hope to have a new date by this week. " So looks like it's going to be a while...
Title: Re: Delta IV-H - NROL-71 - NET January 11, 2019
Post by: catdlr on 01/07/2019 04:58 am
LAUNCH ALERT

                              Brian Webb
                  [email protected]
                        www.spacearchive.info
9:21 PM
The next announced Vandenberg AFB rocket launch is a Falcon 9 on the morning of January 8. The Falcon is scheduled to lift off from the south base at 07:48 PST and carry Iridium NEXT satellites 66-75 into orbit.

The Delta IV Heavy launch has been delayed indefinitely. There is no new launch date.

[emphasis Bold mine, Tony]
Title: Re: Delta IV-H - NROL-71 - NET January 11, 2019
Post by: Newton_V on 01/07/2019 03:50 pm
ILC-of-the-week now looking like 15 January.  National Strawberry Ice Cream Day!

Edit:  Well that didn't last long.  Forget the 15th.....  Was looking good, but no range availability for a few days.
Title: Re: Delta IV-H - NROL-71 - NET mid-January 2019
Post by: catdlr on 01/09/2019 01:43 am
Launch Alert
Brian Webb
                  [email protected]
                        www.spacearchive.info
 Jan 8, 2018

This week's Falcon 9 launch from Vandenberg AFB is now tentatively scheduled for no earlier than January 11. The launch time has not been announced.

There is still no launch date for the Delta IV Heavy.

[emphasis Bold mine, Tony]
Title: Re: Delta IV-H - NROL-71 - NET mid-January 2019
Post by: gongora on 01/09/2019 01:56 am
I'll take Newton_V's updates over the launch alert newsletter.
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: xcel102 on 01/10/2019 05:54 am
There is a roadblock..
If the Amtrak station (and the road leading to it) is blocked, what's the next best/closest public place to view a Delta 4 launch?
Title: Re: Delta IV-H - NROL-71 - December 19/20, 2018 - VAFB SLC-6 (1744 PST, 0144 UTC)
Post by: jaredhead on 01/10/2019 04:32 pm
There is a roadblock..
If the Amtrak station (and the road leading to it) is blocked, what's the next best/closest public place to view a Delta 4 launch?

Assuming it's not closed down in town, jump on San Miguelito Road and drive as far south down it as you can. It was open for the Heavy launches in 2011 and 2013.
Title: Re: Delta IV-H - NROL-71 - NET mid-January 2019
Post by: worldtimedate on 01/12/2019 06:43 am
The launch of Delta IV-H - NROL-71 Mission doesn't seem to on the cards at this moment as ULA seems to be grappling to remedy the technical issue for which the launch had to be scrubbed last time.

https://twitter.com/ulalaunch/status/1081604835315773451

https://twitter.com/ulalaunch/status/1081605703519928327
Title: Re: Delta IV-H - NROL-71 - NET mid-January 2019
Post by: gongora on 01/12/2019 01:42 pm
Those tweets are a week old and say exactly the same thing as the statement Chris B. posted on that date.
Title: Re: Delta IV-H - NROL-71 - NET mid-January 2019
Post by: skater on 01/12/2019 03:04 pm
This is the most recent tweet from Tory Bruno that is germane to this.

Almost there. Very small hydrogen leak. Stubborn to isolate. Would only manifest at cryo temps. Looks like we may have it now. Stand by for more shortly.

10:37 AM - 10 Jan 2019

https://twitter.com/torybruno/status/1083432658284277760
Title: Re: Delta IV-H - NROL-71 - NET mid-January 2019
Post by: zubenelgenubi on 01/13/2019 09:19 am
A smaller item among the greater--re: patchology

I noted that the eagle on the NROL-71 patch is wearing a second dog-tag, partially obscured by the first dog-tag.  The first letter is "D."  Only the lower portion of the stem of the second letter is visible.

Given the apparent sans-serif type, it could be an F, I, P, T, or Y.

Does the second set of apparent dog-tag initials have a deeper meaning?  Or is it the initials of the artist?
Title: Re: Delta IV-H - NROL-71 - NET mid-January 2019
Post by: Newton_V on 01/14/2019 01:38 am
A smaller item among the greater--re: patchology

I noted that the eagle on the NROL-71 patch is wearing a second dog-tag, partially obscured by the first dog-tag.  The first letter is "D."  Only the lower portion of the stem of the second letter is visible.

Given the apparent sans-serif type, it could be an F, I, P, T, or Y.

Does the second set of apparent dog-tag initials have a deeper meaning?  Or is it the initials of the artist?
Donald Trump?  :-[
Title: Re: Delta IV-H - NROL-71 - NET January 19, 2019
Post by: Chris Bergin on 01/15/2019 04:15 pm
ULA:

MEDIA UPDATE
 

ULA Delta IV Heavy NROL-71 Set to Launch Jan. 19, 2019



(Vandenberg Air Force Base, Calif. Jan. 15, 2019) – The United Launch Alliance Delta IV Heavy carrying the NROL-71 mission has been scheduled for Saturday, Jan. 19 from Space Launch Complex-6 at Vandenberg Air Force Base in California at 11:05 a.m. PST.

 
Title: Re: Delta IV-H - NROL-71 - NET January 19, 2019
Post by: input~2 on 01/15/2019 05:09 pm
EASTERN NORTH PACIFIC.
1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING
191756Z TO 192037Z JAN, ALTERNATE 1756Z TO 2037Z
DAILY 20 THRU 22 JAN
IN AREAS BOUND BY:
A. 25-12N 116-54W, 25-02N 117-34W,
26-40N 118-05W, 26-50N 117-25W.
B. 04-41S 109-18W, 04-53S 110-04W,
00-05N 111-16W, 00-17N 110-30W.
2. HAZARDOUS OPERATIONS, ROCKET LAUNCHING
192001Z TO 192217Z JAN, ALTERNATE 2001Z TO 2217Z
DAILY 20 THRU 22 JAN IN AREA BOUND BY
41-15N 147-26W, 41-27N 146-44W,
39-57N 146-03W, 39-46N 146-45W.
3. CANCEL THIS MSG 222317Z JAN 19.//

Authority: WESTERN RANGE 141949Z JAN 19.

Date: 142116Z JAN 19
Cancel: 22231700 Jan 19
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: FutureSpaceTourist on 01/16/2019 07:21 pm
https://twitter.com/ulalaunch/status/1085630166599110659

Quote
Counting down to launch! L-3 and everything is progressing towards launch of the #DeltaIV Heavy carrying #NROL71, planned for 1/19 at  11:05am PST from Vandenberg AFB. The current weather outlook shows a 60% chance of favorable conditions for launch. @NatReconOfc @30thSpaceWing
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: pb2000 on 01/17/2019 08:53 pm
https://twitter.com/torybruno/status/1085904389087186945

Quote from:  Tory Bruno
Looking good for this weekend. Pgo=60%. Keeping an eye on ground winds. #NROL71
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: FutureSpaceTourist on 01/17/2019 09:59 pm
Weather improving:

https://twitter.com/ulalaunch/status/1086033089401303040

Quote
Final preparations are underway for Saturday’s flight of a #DeltaIV Heavy rocket with the #NROL71 national security mission from Vandenberg @30thSpaceWing. Launch is planned for 1/19, 11:05am PST. The current weather outlook shows a 70% chance of favorable conditions for launch.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: catdlr on 01/18/2019 02:12 am
The following is an L-2 media update from the United Launch Alliance:

Everything is progressing toward the ULA Delta IV Heavy launch carrying the NROL-71 mission for the National Reconnaissance Office. The mission is set to lift off on a Delta IV Heavy rocket on Saturday, Jan. 19 from Space Launch Complex-6 at Vandenberg Air Force Base in California. The forecast calls for a 70 percent chance of favorable weather conditions for launch. The launch time is 11:05 a.m. PST.


Launch Forecast Summary:

Overall probability of violating weather constraints: 30%

Primary concerns: Ground Winds

Overall probability of violating weather constraints for 24 hour delay: 60%

Primary concern: Ground Winds


Launch Broadcast

Live broadcast coverage of launch will begin at 10:45 a.m. PST on Jan.19.

Live launch updates and webcast available at: www.ulalaunch.com

*Note: Satellite frequencies changed from previous attempts

ALL TIMES PACIFIC

SATURDAY, JANUARY 19

BARS + TONE – 10:14 A.M.

PROGRAM START – 10:45 A.M.

LAUNCH – 11:05 A.M

DIGITAL SATELLITE C-BAND DOWNLINK
HD FORMAT
SATELLITE — G3
TRANSPONDER — 2
BAND — C-BAND DIGITAL
ORBITAL POSITION — 95°W
HD BANDWIDTH — 18 MHz (HALF TRANSPONDER)
UPLINK — 5,974.000 MHz (Horizontal)
DOWNLINK — 3,749.000 MHz (Vertical)
SYMBOL RATE — 13
FEC — ¾
DATA RATE — 17.9705
DVBS – QPSK
MPEG 2
AUDIO EMBEDDED

Webcast available at www.ulalaunch.com and www.youtube.com/unitedlaunchalliance
______________________________________________________________
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: worldtimedate on 01/18/2019 04:09 am
The launch of NROL- 71 is scheduled at 11:05 PM PST [ 12:05 PM MST, 13:05 PM CST, 14:05 PM EST ] on January 19. The live broadcast will begin at 10:45 AM PST, as confirmed by National Reconnaissance Office (NRO) (http://www.nro.gov/).

https://twitter.com/NatReconOfc/status/1085233335910191106

https://www.ulalaunch.com/missions/delta-iv-nrol-71

Delta IV Heavy • NROL-71 – Spaceflight101:
https://spaceflight101.com/events/delta-iv-heavy-nrol-71/
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: FutureSpaceTourist on 01/18/2019 04:59 pm
https://twitter.com/ulalaunch/status/1086313268258385920

Quote
We are go for launch! The Launch Readiness Review (LRR) was completed this morning. At the conclusion of the meeting, senior leaders were polled and gave a unanimous “go” for launch. Follow along with all of the launch activities on our launch blog at bit.ly/div_nrol71
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Jdeshetler on 01/19/2019 01:05 am
https://twitter.com/jdeshetler/status/1086436399883026432
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: catdlr on 01/19/2019 05:49 am
ULA - Delta Heavy - NROL-71 - A sense of scale at SLC-6 pad


Jay DeShetler
Published on Jan 18, 2019

https://www.youtube.com/watch?v=_HsCoAYtQy8?t=001

https://www.youtube.com/watch?v=_HsCoAYtQy8
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: catdlr on 01/19/2019 05:54 am
Jan. 19 Delta IV NROL-71 Live Launch Broadcast - Begins 10:45 a.m. PST


United Launch Alliance
Scheduled for Jan 19, 2019

Tune in for live coverage as ULA launches the NROL-71 aboard the Delta IV Heavy rocket from Vandenberg Air Force Base, California.

https://www.youtube.com/watch?v=DxjaRK2S7fw?t=001

https://www.youtube.com/watch?v=DxjaRK2S7fw
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: FutureSpaceTourist on 01/19/2019 09:38 am
https://twitter.com/ulalaunch/status/1086573001124937728
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: RocketLover0119 on 01/19/2019 11:57 am
Gantry retraction complete:

https://twitter.com/ulalaunch/status/1086606339890016256
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: RocketLover0119 on 01/19/2019 12:00 pm
Live updates on here leading up to launch, link for those who want to follow along:

https://www.ulalaunch.com/missions/delta-iv-nrol-71
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: RocketLover0119 on 01/19/2019 01:23 pm
In the first of 2 built-in holds, per the live blog:

"This is Delta Launch Control at T-minus 4 hours, 15 minutes and holding. The countdown has entered the first of two planned, built-in holds that are scheduled in today’s timeline."
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: RocketLover0119 on 01/19/2019 01:42 pm
GO to begin fueling:

https://twitter.com/ulalaunch/status/1086632792643928064
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: FutureSpaceTourist on 01/19/2019 02:32 pm
ULA photos from today
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: FutureSpaceTourist on 01/19/2019 02:36 pm
Details of fault that halted previous launch attempt:

https://twitter.com/torybruno/status/1086644136575303680

Quote
Valve. Very small hydrogen leak, but only at cryo temps. Removed and replaced. Verified. Probably would have been fine, but we don’t take those kind of risks.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: FutureSpaceTourist on 01/19/2019 04:06 pm
https://twitter.com/torybruno/status/1086666710424313856

Quote
Tanking. No issues. Board is green. #NROL71
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: rcaron on 01/19/2019 04:19 pm
Didn't see a viewing thread. There's a new roadblock  https://maps.google.com/maps?q=34.59465926986138%2C-120.46745209023356 so I can't watch from where I saw the last Heavy. Any suggestions?
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: GBpatsfan on 01/19/2019 04:33 pm
Didn't see a viewing thread. There's a new roadblock  https://maps.google.com/maps?q=34.59465926986138%2C-120.46745209023356 so I can't watch from where I saw the last Heavy. Any suggestions?
Is surf beach going to be open? If it wasn’t San Miguelito was my secondary spot unfortunately.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: hartspace on 01/19/2019 04:42 pm
Didn't see a viewing thread. There's a new roadblock  https://maps.google.com/maps?q=34.59465926986138%2C-120.46745209023356 so I can't watch from where I saw the last Heavy. Any suggestions?
Try Harris Grade if it isn't cloudy.  Maybe Gaviota State Beach if you want to get downrange a bit.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: rcaron on 01/19/2019 04:49 pm
Another roadblock at Ocean and 13th so Im guessing Surf Beach is closed (unless there is another way in).  Crowd lined up on Ocean probably as good as its gonna get
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Chris Bergin on 01/19/2019 05:00 pm
This is the watch item:

https://twitter.com/torybruno/status/1086683952553684992
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: FutureSpaceTourist on 01/19/2019 05:32 pm
No fog to obscure the view at least

https://twitter.com/nextspaceflight/status/1086691210314493953
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: hartspace on 01/19/2019 05:39 pm
Quote
10:36 a.m. PST (1:36 p.m. EST; 1836 UTC

Weather is 40 percent favorable for an on-time launch due to ground winds.
https://www.ulalaunch.com/missions/delta-iv-nrol-71 (https://www.ulalaunch.com/missions/delta-iv-nrol-71)
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 05:43 pm
Colour check.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 05:45 pm
Not for resale.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Chris Bergin on 01/19/2019 05:46 pm
Coverage has begun.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 05:46 pm
Not working any issues.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Targeteer on 01/19/2019 05:47 pm
Nice tie :)
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 05:47 pm
Only 40% go.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 05:48 pm
Showing launch video.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Targeteer on 01/19/2019 05:48 pm
the graph of the launch azimuth seems to confirm reports of the different inclination
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 05:50 pm
Vehicle description.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: hartspace on 01/19/2019 05:51 pm
#NROL71 (https://twitter.com/hashtag/NROL71?src=hash&amp;ref_src=twsrc%5Etfw) countdown just entered a planned 15-min hold at T-4 mins.</p>&mdash; ULA (@ulalaunch) January 19, 2019 (https://twitter.com/ulalaunch/status/1086696662578282496?ref_src=twsrc%5Etfw)

https://twitter.com/ulalaunch (https://twitter.com/ulalaunch)
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 05:51 pm
L-14 minutes.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Targeteer on 01/19/2019 05:51 pm
As does this graphic
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 05:52 pm
Logos.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 05:53 pm
L-12 minutes. Talking about leak.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 05:55 pm
L-10 minutes. Talking about previous scrub at the last 10 seconds.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Chris Bergin on 01/19/2019 05:56 pm
Confirmation of the Tanking Test we mentioned the other week. That was required to find the leak.

Replaced a valve, repeated the Tanking Test (we missed the second one). Showed it was solved.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 05:56 pm
L-9 minutes.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 05:57 pm
L-8 minutes. Showing last years ULA missions.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 05:58 pm
L-7 minutes. Talking about a command issue with the PLC.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: zubenelgenubi on 01/19/2019 05:59 pm
Urgh!  Wish the PAO gentleman had not talked over the anomaly discussion on the loop!
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 05:59 pm
L-6 minutes. Talking about disabling 6 alarms.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 06:00 pm
L-5 minutes. Disable pdot measurement. Manual measurement.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 06:01 pm
L-4 minutes. Extending built-in hold.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: zubenelgenubi on 01/19/2019 06:02 pm
L-4 minutes. Extending built-in hold.

And therefore, will not launch at window opening.

EDIT: Maybe they can get the procedures updated "in-time"?

EDIT 2: No, call-out for new launch time at 1910Zulu = 19:10 UTC

EDIT 3: Followed by polling.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 06:02 pm
Performing launch on time verification.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Chris Bergin on 01/19/2019 06:03 pm
10 mins past the hour is the new T-0.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 06:03 pm
New T-0 of 19:10 UTC.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 06:05 pm
Performing poll.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Chris Bergin on 01/19/2019 06:05 pm
Polling is go!
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 06:05 pm
L-6 minutes. Go for launch.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 06:06 pm
L-5 minutes. Talking about coming events.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 06:07 pm
T-3 minutes 50 seconds.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 06:08 pm
T-3 minutes. FTS internal.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 06:09 pm
T-2 minutes. Vehicle internal.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 06:10 pm
T-1 minute. Range is green.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 06:11 pm
Liftoff!
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Targeteer on 01/19/2019 06:11 pm
Fox News covering the launch live
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Chris Bergin on 01/19/2019 06:11 pm
LAUNCH!

https://twitter.com/NASASpaceflight/status/1086702738967281664
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 06:12 pm
T+1 minute.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 06:13 pm
T+2 minutes.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Targeteer on 01/19/2019 06:13 pm
spectacular view
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: mainmind on 01/19/2019 06:13 pm
Core booster went to "partial thrust mode" shortly after liftoff. Anyone know what level of thrust the core booster drops to at this point? 50%? 30%?

Thanks
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 06:13 pm
T+3 minutes.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 06:15 pm
T+4 minutes. Booster separation.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Chris Bergin on 01/19/2019 06:15 pm
Nice staging.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 06:16 pm
T+5 minutes.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 06:18 pm
First stage separation.

Second stage ignition.

Fairing separation.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: ZachS09 on 01/19/2019 06:18 pm
Core booster went to "partial thrust mode" shortly after liftoff. Anyone know what level of thrust the core booster drops to at this point? 50%? 30%?

Thanks

During partial thrust mode, the center core's main engine throttles down to 58%.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: gtae07 on 01/19/2019 06:21 pm
It seems as though the vehicle rolls to put the boosters vertically ("top and bottom") until through most of the atmosphere, then it rolls "level" for jettison.  Then it seems to roll about 45 degrees after that.

I'm guessing the "top and bottom" position reduces aerodynamic loads during pitchover, but why the odd bank angle after jettison?
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Llian Rhydderch on 01/19/2019 06:21 pm
Liftoff and the first six or so minutes of the trajectory looked awesome.  Congrats to ULA on that!

But, darn, they're gonna crash all three of those multi-tens-of-million-dollars booster stages into the ocean.  And only use them once.  Throw them away.  ???

Can you believe it?   :o
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Steven Pietrobon on 01/19/2019 06:21 pm
End of launch coverage. Post is a bit late as the video stopped on me.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: zubenelgenubi on 01/19/2019 06:25 pm
Spectacular views of the ascent, from the ground, on-board, even a little ground-based IR!

Great "internal" view of booster and first stage separations.

Did we see a bit of the RL-10 nozzle extension?

And, we got a good view of a discarded PLF half oscillating as it fell behind.

Thanks, Steven!
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Chris Bergin on 01/19/2019 06:26 pm
And now we wait!

Thanks again to Steven for the coverage!
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Mapperuo on 01/19/2019 06:33 pm
https://www.youtube.com/watch?v=AQU8MHtXlsQ
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Chris Bergin on 01/19/2019 06:34 pm
https://twitter.com/thejackbeyer/status/1086706422782427137
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: FutureSpaceTourist on 01/19/2019 06:42 pm
https://twitter.com/ulalaunch/status/1086709493327491072

Edit to add: ULA have now released higher res version (2nd attachment)
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Chris Bergin on 01/19/2019 06:56 pm
https://twitter.com/nextspaceflight/status/1086711244726235137
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: edkyle99 on 01/19/2019 07:08 pm
The following puts forward what seems to me a good argument for NROL-71 being a "Lacrosse Follow-on" rather than a new KH-11.
https://sattrackcam.blogspot.com/2018/12/nrol-71-enigmatic-launch.html

It's a shame the way ULA is treating space reporters now, ending the audio feed and serving up that purposely intrusive gawdawful crawl on their video.  I'm going to make ULA images on my web site one pixel smaller. 

 - Ed Kyle
Title: Delta IV-H - NROL-71 - January 19, 2019
Post by: Star One on 01/19/2019 07:37 pm
The following puts forward what seems to me a good argument for NROL-71 being a "Lacrosse Follow-on" rather than a new KH-11.
https://sattrackcam.blogspot.com/2018/12/nrol-71-enigmatic-launch.html

It's a shame the way ULA is treating space reporters now, ending the audio feed and serving up that purposely intrusive gawdawful crawl on their video.  I'm going to make ULA images on my web site one pixel smaller. 

 - Ed Kyle

That’s odd because we already have a Lacrosse replacement system currently being deployed.

We know why Lacrosse 5 is different to the others thanks to that Russian observatory publishing orbital pictures of them online. Is he arguing that this payload is the equivalent evolution to the FIA payloads?

Here (http://www.satobs.org/seesat/Jan-2019/0097.html) they are still speculating it’s KH-11 Block 5.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Chris Bergin on 01/19/2019 07:44 pm
United Launch Alliance Successfully Launches NROL-71 in Support of
National Security

 


Vandenberg Air Force Base, Calif., (Jan. 19, 2019) – A United Launch Alliance (ULA) Delta IV Heavy rocket carrying a critical payload for the National Reconnaissance Office (NRO) denoted NROL-71 lifted off from Space Launch Complex-6 on Jan. 19 at 11:10 a.m. PST. The mission is in support of our country’s national defense.

 

“Congratulations to our team and mission partners for successfully delivering this critical asset to support national security missions,” said Gary Wentz, ULA vice president of Government and Commercial Programs, “thank you to the entire team for their perseverance, ongoing dedication and focus on 100% mission success.”

 

The Delta IV Heavy is the nation’s proven heavy lift launch vehicle, delivering high-priority missions for the National Reconnaissance Office, U.S. Air Force and NASA. With its advanced upper stage, the Delta IV Heavy can take more than 14,000 pounds directly to geosynchronous orbit, as well as a wide variety of complex interplanetary trajectories.

 

The mission launched aboard a Delta IV Heavy, comprised of three common booster cores each powered by an Aerojet Rocketdyne RS-68A liquid hydrogen/liquid oxygen engine producing a combined total of more than 2.1 million pounds of thrust. The second stage was powered by an AR RL10B-2 liquid hydrogen/liquid oxygen engine.

 

NROL-71 is ULA’s first launch in 2019 and 132nd successful launch since the company was formed in December 2006.

 

ULA's next launch is the WGS-10 mission for the U.S. Air Force on a Delta IV rocket. The launch is scheduled for March 13, 2019 from Space Launch Complex-37 at Cape Canaveral Air Force Station, Florida.

With more than a century of combined heritage, ULA is the world’s most experienced and reliable launch service provider. ULA has successfully delivered more than 130 satellites to orbit that provide Earth observation capabilities, enable global communications, unlock the mysteries of our solar system, and support life-saving technology.

For more information on ULA, visit the ULA website at www.ulalaunch.com, or call the ULA Launch Hotline at 1-877-ULA-4321 (852-4321). Join the conversation at www.facebook.com/ulalaunch, twitter.com/ulalaunch and instagram.com/ulalaunch.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Jdeshetler on 01/19/2019 07:56 pm
https://www.youtube.com/watch?v=K2r7rIbmr7Y
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Chris Bergin on 01/19/2019 08:03 pm
NROL-71 successful S/C Sep!

ARTICLE:  https://www.nasaspaceflight.com/2019/01/ula-delta-iv-heavy-set-to-launch-nrol-71/  - by William Graham.


Jack Beyer photo.

https://twitter.com/NASASpaceflight/status/1086726467046834177
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: VDD1991 on 01/19/2019 08:05 pm
Quite relieved to see NROL-71 launched after a number of delays late last year. Because the launch went well as planned, the NRO may push the NROL-91 forward to something like 2020 or 2021 if the budgetary climate persists.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: jcm on 01/19/2019 08:24 pm
The following puts forward what seems to me a good argument for NROL-71 being a "Lacrosse Follow-on" rather than a new KH-11.
https://sattrackcam.blogspot.com/2018/12/nrol-71-enigmatic-launch.html

It's a shame the way ULA is treating space reporters now, ending the audio feed and serving up that purposely intrusive gawdawful crawl on their video.  I'm going to make ULA images on my web site one pixel smaller. 

 - Ed Kyle

That’s odd because we already have a Lacrosse replacement system currently being deployed.

We know why Lacrosse 5 is different to the others thanks to that Russian observatory publishing orbital pictures of them online. Is he arguing that this payload is the equivalent evolution to the FIA payloads?

Here (http://www.satobs.org/seesat/Jan-2019/0097.html) they are still speculating it’s KH-11 Block 5.


Interestingly, time of ULA's announcement of mission success is exactly around the time spacecraft sep
for the radar mission profile, and later than one might expect for the imaging case.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: CobaltWolf on 01/19/2019 08:29 pm
It seems as though the vehicle rolls to put the boosters vertically ("top and bottom") until through most of the atmosphere, then it rolls "level" for jettison.  Then it seems to roll about 45 degrees after that.

I'm guessing the "top and bottom" position reduces aerodynamic loads during pitchover, but why the odd bank angle after jettison?

Yeah, got a lot of people over here wondering why there was that strange roll behavior. Is it normal for the DIVH?
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Wolfram66 on 01/19/2019 08:43 pm
https://twitter.com/nextspaceflight/status/1086711244726235137

I am guessing that the anomalously brighter plume of the Right booster is just due to the ablative cooling of the RS-68A bells
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: fs10inator on 01/19/2019 09:02 pm
Apparently, the first DCSS burn was 12 minutes and 6 seconds in duration, according to Patrick Moore just before end of broadcast.

The following puts forward what seems to me a good argument for NROL-71 being a "Lacrosse Follow-on" rather than a new KH-11.
https://sattrackcam.blogspot.com/2018/12/nrol-71-enigmatic-launch.html

It's a shame the way ULA is treating space reporters now, ending the audio feed and serving up that purposely intrusive gawdawful crawl on their video.  I'm going to make ULA images on my web site one pixel smaller. 

 - Ed Kyle

I don't understand why ULA would do this. But I guess I should downscale my future Atlas-Centaur animations from 720p to 719p then...
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: brahmanknight on 01/19/2019 09:32 pm
The following puts forward what seems to me a good argument for NROL-71 being a "Lacrosse Follow-on" rather than a new KH-11.
https://sattrackcam.blogspot.com/2018/12/nrol-71-enigmatic-launch.html

It's a shame the way ULA is treating space reporters now, ending the audio feed and serving up that purposely intrusive gawdawful crawl on their video.  I'm going to make ULA images on my web site one pixel smaller. 

 - Ed Kyle

That’s odd because we already have a Lacrosse replacement system currently being deployed.

We know why Lacrosse 5 is different to the others thanks to that Russian observatory publishing orbital pictures of them online. Is he arguing that this payload is the equivalent evolution to the FIA payloads?

Here (http://www.satobs.org/seesat/Jan-2019/0097.html) they are still speculating it’s KH-11 Block 5.

And where exactly are said orbital photos of Lacrosse 5?
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: jcm on 01/19/2019 09:37 pm
Isn’t this launcher a bit excessive for a radar payload. They’ve mostly gone on more modest launchers.


Yes, that's true. I still lean towards Ted's theory, but let's see what the observers find!
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: hoku on 01/19/2019 09:41 pm
The following puts forward what seems to me a good argument for NROL-71 being a "Lacrosse Follow-on" rather than a new KH-11.
https://sattrackcam.blogspot.com/2018/12/nrol-71-enigmatic-launch.html

It's a shame the way ULA is treating space reporters now, ending the audio feed and serving up that purposely intrusive gawdawful crawl on their video.  I'm going to make ULA images on my web site one pixel smaller. 

 - Ed Kyle

That’s odd because we already have a Lacrosse replacement system currently being deployed.

We know why Lacrosse 5 is different to the others thanks to that Russian observatory publishing orbital pictures of them online. Is he arguing that this payload is the equivalent evolution to the FIA payloads?

Here (http://www.satobs.org/seesat/Jan-2019/0097.html) they are still speculating it’s KH-11 Block 5.

And where exactly are said orbital photos of Lacrosse 5?
https://www.space.com/29184-secret-spy-satellite-lacrosse-5-revealed.html (https://www.space.com/29184-secret-spy-satellite-lacrosse-5-revealed.html)
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Chris Bergin on 01/19/2019 09:55 pm
https://twitter.com/thejackbeyer/status/1086758495523721216
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: envy887 on 01/19/2019 09:59 pm
https://twitter.com/thejackbeyer/status/1086758495523721216

The booster on the right got really scorched. I know it's normal for DIVH but that looks even toastier than usual. Lots of GH2 floating around at ignition.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: FutureSpaceTourist on 01/19/2019 10:05 pm
More great shots from ULA
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: FutureSpaceTourist on 01/19/2019 10:15 pm
Now it’s official:

https://twitter.com/torybruno/status/1086762959336964096

Quote
132
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: ZachS09 on 01/20/2019 12:21 am
Is it just me, or did they add a pad water deluge system to SLC-6?

I’ve never seen steam erupt out of the flame trench during these Delta IV Heavy launches.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: catdlr on 01/20/2019 03:18 am
ULA - Delta IV Heavy - NROL 71 - 4K close up during launching w/ high fidelity audio

Jay DeShetler
Published on Jan 19, 2019

https://www.youtube.com/watch?v=JG5RvT-sDlI?t=001

https://www.youtube.com/watch?v=JG5RvT-sDlI
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: catdlr on 01/20/2019 03:19 am
ULA - Delta IV Heavy - NROL-71 - 4K wide angle w/ high fidelity audio, wait for the end!

Jay DeShetler
Published on Jan 19, 2019

https://www.youtube.com/watch?v=YIYdTdmWjC4?t=001

https://www.youtube.com/watch?v=YIYdTdmWjC4
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: catdlr on 01/20/2019 03:38 am
Delta IV Heavy NROL-71 Launch Highlights


United Launch Alliance
Published on Jan 19, 2019

Liftoff of a ULA Delta IV Heavy carrying a critical payload for the National Reconnaissance Office, NROL-71. The Delta IV Heavy lifted off from Space Launch Complex 6 on Jan. 19, 2019 at 11:10 a.m. PST.

https://www.youtube.com/watch?v=QlBhV0HgqYA?t=001

https://www.youtube.com/watch?v=QlBhV0HgqYA
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Targeteer on 01/20/2019 03:48 am
It has already been heard by observers

http://www.satobs.org/seesat/Jan-2019/0103.html
https://www.facebook.com/groups/1669929169904106/

If you want to try and see it, Ted Molczan updated his TLE predictions to reflect actual launch time

http://www.satobs.org/seesat/Jan-2019/0097.html
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: worldtimedate on 01/20/2019 06:03 am
Liftoff and the first six or so minutes of the trajectory looked awesome.  Congrats to ULA on that!

But, darn, they're gonna crash all three of those multi-tens-of-million-dollars booster stages into the ocean.  And only use them once.  Throw them away.  ???

Can you believe it?   :o
Yes, I have to believe it, because like all the launch vehicles, except Falcon X, Delta IV Heavy is NOT Reusable. Unless the reusable features are incorporated into a launch vehicle, we have to see this kind of thing.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: sdsds on 01/20/2019 06:28 am
Snippets of launch observation from Brian Webb: http://mailman.qth.net/pipermail/launch-alert/2019-January/001188.html
Quote
I observed today’s launch from a bluff approximately 105 statute miles (167 kilometers) east-southeast of the launch site.

[...]

After a few minutes, I saw a very brief, colorless, spray-like event behind the vehicle. This was probably due to something being jettisoned from the Delta IV Heavy.

The rocket then resembled a yellow point of light. A few seconds later, I saw a brief, colorless, wedge-shaped plume well behind the rocket. This appeared to have been caused by an object performing some type of venting.

I continued to follow the yellow point of light until T+5 minutes 45 seconds [...]

Is Webb reporting some known aspect of a DIV-H launch, or are his observations suggesting some deployment took place distinct from that of the nominal mission payload?
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Lewis007 on 01/20/2019 07:19 am
Launchpics of Lily Ruby on Flickr

https://www.flickr.com/photos/[email protected]/sets/72157675753069387

https://twitter.com/LilyRubenstein/status/1086825861527957504
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: hoku on 01/20/2019 07:22 am
Snippets of launch observation from Brian Webb: http://mailman.qth.net/pipermail/launch-alert/2019-January/001188.html
Quote
I observed today’s launch from a bluff approximately 105 statute miles (167 kilometers) east-southeast of the launch site.

[...]

After a few minutes, I saw a very brief, colorless, spray-like event behind the vehicle. This was probably due to something being jettisoned from the Delta IV Heavy.

The rocket then resembled a yellow point of light. A few seconds later, I saw a brief, colorless, wedge-shaped plume well behind the rocket. This appeared to have been caused by an object performing some type of venting.

I continued to follow the yellow point of light until T+5 minutes 45 seconds [...]

Is Webb reporting some known aspect of a DIV-H launch, or are his observations suggesting some deployment took place distinct from that of the nominal mission payload?

Port and starboard booster separation occurs about 105 nm downrange. First stage separation occurs at T+ 5:45. Thus most likely the report is related to these events.

Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Lewis007 on 01/20/2019 08:16 am
Launch pics posted by VAFB
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Targeteer on 01/20/2019 05:51 pm
43941    USA 290       2019-004A     
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: TJL on 01/20/2019 06:28 pm
Is it just me, or did they add a pad water deluge system to SLC-6?

I’ve never seen steam erupt out of the flame trench during these Delta IV Heavy launches.
They may have added a pad deluge system being it's the first Delta IV Heavy with upgraded RS-68A engines from VAFB.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: catdlr on 01/21/2019 03:00 am
Delta IV Heavy Launch with NROL-71 through tracked telescope in 4K on 2019-01-19


Justin Foley
Published on Jan 20, 2019

The launch of United Launch Alliance Delta IV Heavy rocket from Vandenberg Air Force Base in California on January 19th, 2019.

This video is a combination of footage shot with a Sony A7sII through a 1500mm Celestron 6" Schmidt-Cassegrain telescope and a piggybacked Sony A6000 with 210mm telephoto lens. Tracking was guided manually via joystick control. Audio recorded with standalone tascam audio recorder.

The rumble is very low, and may only be able to be heard with larger speaker systems.

https://www.youtube.com/watch?v=PwuQMEZulGk?t=001

https://www.youtube.com/watch?v=PwuQMEZulGk
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: sdsds on 01/21/2019 10:22 am
Snippets of launch observation from Brian Webb: http://mailman.qth.net/pipermail/launch-alert/2019-January/001188.html
Quote
I observed today’s launch from a bluff approximately 105 statute miles (167 kilometers) east-southeast of the launch site.

[...]

After a few minutes, I saw a very brief, colorless, spray-like event behind the vehicle. This was probably due to something being jettisoned from the Delta IV Heavy.

The rocket then resembled a yellow point of light. A few seconds later, I saw a brief, colorless, wedge-shaped plume well behind the rocket. This appeared to have been caused by an object performing some type of venting.

I continued to follow the yellow point of light until T+5 minutes 45 seconds [...]

Is Webb reporting some known aspect of a DIV-H launch, or are his observations suggesting some deployment took place distinct from that of the nominal mission payload?

Port and starboard booster separation occurs about 105 nm downrange. First stage separation occurs at T+ 5:45. Thus most likely the report is related to these events.

Thank you, that does clearly indicate Webb lost visual contact with the vehicle just around the time the engine on the center CBC shut down. Thus the plume he observed must have been associated with the strapon CBCs.

<begin conspiracy theory thinking>
 Just how much physical space is enclosed by the caps that top the strapon CBCs? If the primary payload were low enough in mass could another payload with e.g. a clandestine storable propellant second stage be squirreled away inside one?
<end conspiracy theory thinking>

(I'm not suggesting there have been prior NRO launches that might have ever done anything like that!)
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: SciNews on 01/21/2019 10:41 am
Edited version of the ULA feed
https://www.youtube.com/watch?v=NygjTSJwd-I
short video from DOD
https://www.youtube.com/watch?v=Opb_eXRj0Ss
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Star One on 01/21/2019 11:42 am
Snippets of launch observation from Brian Webb: http://mailman.qth.net/pipermail/launch-alert/2019-January/001188.html
Quote
I observed today’s launch from a bluff approximately 105 statute miles (167 kilometers) east-southeast of the launch site.

[...]

After a few minutes, I saw a very brief, colorless, spray-like event behind the vehicle. This was probably due to something being jettisoned from the Delta IV Heavy.

The rocket then resembled a yellow point of light. A few seconds later, I saw a brief, colorless, wedge-shaped plume well behind the rocket. This appeared to have been caused by an object performing some type of venting.

I continued to follow the yellow point of light until T+5 minutes 45 seconds [...]

Is Webb reporting some known aspect of a DIV-H launch, or are his observations suggesting some deployment took place distinct from that of the nominal mission payload?

Port and starboard booster separation occurs about 105 nm downrange. First stage separation occurs at T+ 5:45. Thus most likely the report is related to these events.

Thank you, that does clearly indicate Webb lost visual contact with the vehicle just around the time the engine on the center CBC shut down. Thus the plume he observed must have been associated with the strapon CBCs.

&lt;begin conspiracy theory thinking&gt;
 Just how much physical space is enclosed by the caps that top the strapon CBCs? If the primary payload were low enough in mass could another payload with e.g. a clandestine storable propellant second stage be squirreled away inside one?
&lt;end conspiracy theory thinking&gt;

(I'm not suggesting there have been prior NRO launches that might have ever done anything like that!)

If it was a KH-11 it would probably fill up most of that space and with a radarsat even with undeployed array it would still take up a fair bit of space.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: FutureSpaceTourist on 01/21/2019 12:07 pm
3 more cool ULA photos
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Lewis007 on 01/21/2019 12:37 pm
Three additional NROL-71 patches
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Jim on 01/21/2019 08:03 pm
Liftoff and the first six or so minutes of the trajectory looked awesome.  Congrats to ULA on that!

But, darn, they're gonna crash all three of those multi-tens-of-million-dollars booster stages into the ocean.  And only use them once.  Throw them away.  ???

Can you believe it?   :o

yes, because it is the reliable thing to do.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Newton_V on 01/21/2019 08:23 pm
Is it just me, or did they add a pad water deluge system to SLC-6?

I’ve never seen steam erupt out of the flame trench during these Delta IV Heavy launches.

Just rainwater getting steamed..
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: catdlr on 01/22/2019 01:34 am
ULA Delta IV Heavy NROL-71 Launch • Vandenberg AFB

AIRBOYD
Published on Jan 21, 2019

Click to subscribe! http://bit.ly/subAIRBOYD

Team Vandenberg supported the successful launch of a United Launch Alliance Delta IV Heavy rocket carrying a National Reconnaissance Office payload from Space Launch Complex-6, Saturday, Jan. 19 2019, at 11:10 am PST.

Video by Airman 1st Class Daniel Myles 30th Space Wing Public Affairs   

The appearance of U.S. Department of Defense (DoD) visual information does not imply or constitute DoD endorsement.

https://www.youtube.com/watch?v=xvBQdfJZ4GA?=001

https://www.youtube.com/watch?v=xvBQdfJZ4GA
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: catdlr on 01/22/2019 01:38 am
ULA Delta IV Heavy - NROL 71 - 4K wide angle Timelapse

Jay DeShetler
Published on Jan 21, 2019

https://www.youtube.com/watch?v=L1r82G8q940?t=001

https://www.youtube.com/watch?v=L1r82G8q940
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Llian Rhydderch on 01/22/2019 11:15 am
Was the large external flame external to the rocket engine initiation sequence, the heavy flames up to the height of the middle of the booster cores, a normal occurrence for the Delta IV Heavy?  There is a large amount of black smoke as a result, seen mixed into the much lighter-colored rocket exhaust and steam rising, and heavy blackening of the cores seen shortly after liftoff.

I've been looking to see this explained, and did not see anything in the thread up to this point.  Anyone have a theory? 
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: ugordan on 01/22/2019 11:33 am
Was the large external flame external to the rocket engine initiation sequence, the heavy flames up to the height of the middle of the booster cores, a normal occurrence for the Delta IV Heavy?

Ahh, you must be new to the forum, welcome!  :P

Yes, it's not desirable (they tried to mitigate it somewhat by a staggered side booster ignition, but the result was not really all that effective), but it is expected for a Delta IV.

RS-68 engines dump out a lot of hydrogen during startup, that's just the nature of the beast.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Opie on 01/22/2019 11:34 am
Yes. Excess hydrogen on startup ignites and causes the plume. The black smoke is from the foam insulation burning from the plume.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: ZachS09 on 01/22/2019 01:17 pm
This blackening of the insulation is actually more frequent in Vandenberg as opposed to Cape Canaveral launches.

For example, during the EFT-1 mission, all three booster cores looked nearly 100% clean after ignition.

My reasoning for the blackening during this launch and all other Vandenberg launches is because there’s not that much moisture in the air and the elevation is slightly higher.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: IanO on 01/22/2019 03:36 pm
Three additional NROL-71 patches
...
patches NROL-71 (2).jpg   (Don't Blink)
...
I never thought I'd see a Doctor Who themed patch from the US military!
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Kansan52 on 01/22/2019 03:47 pm
Me neither!!
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: Kansan52 on 01/22/2019 03:52 pm
Is there an image of the "We Don't Blink" patch that can be shared on Facebook?
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: russianhalo117 on 01/22/2019 10:06 pm
This blackening of the insulation is actually more frequent in Vandenberg as opposed to Cape Canaveral launches.

For example, during the EFT-1 mission, all three booster cores looked nearly 100% clean after ignition.

My reasoning for the blackening during this launch and all other Vandenberg launches is because there’s not that much moisture in the air and the elevation is slightly higher.
The pads have a few differences that have some influence.
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: TJL on 01/22/2019 11:03 pm
If I remember correctly the Delta IV Heavy that launched NROL 49 from VAFB on Jan. 20, 2011 had the most insulation burn. Actually looked like the boosters were on fire long after it cleared the tower.

https://www.youtube.com/watch?v=RE3z4BKOTsE
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: DaveS on 01/23/2019 12:58 am
If I remember correctly the Delta IV Heavy that launched NROL 49 from VAFB on Jan. 20, 2011 had the most insulation burn. Actually looked like the boosters were on fire long after it cleared the tower.

https://www.youtube.com/watch?v=RE3z4BKOTsE
I doin't know, I still think the very first DIVH still is the leader with near complete charring of all three CBC LH2 tanks: https://spaceflightnow.com/delta/d310/041221launch/02.html
https://spaceflightnow.com/delta/d310/041221launch/07.html
Title: Re: Delta IV-H - NROL-71 - January 19, 2019
Post by: TJL on 01/23/2019 11:46 pm
If I remember correctly the Delta IV Heavy that launched NROL 49 from VAFB on Jan. 20, 2011 had the most insulation burn. Actually looked like the boosters were on fire long after it cleared the tower.

https://www.youtube.com/watch?v=RE3z4BKOTsE
I doin't know, I still think the very first DIVH still is the leader with near complete charring of all three CBC LH2 tanks: https://spaceflightnow.com/delta/d310/041221launch/02.html
https://spaceflightnow.com/delta/d310/041221launch/07.html
You may be right, Dave.
Title: Re: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: Norm38 on 01/28/2019 07:46 pm
With all the delays I lost sight of this one and just watched the launch video today.  I don't recall ever getting ride-along camera views from the Delta IV Heavy before.  Was nice to get to see booster sep and staging.  Were those cameras new?  Or they just hadn't televised them before?
Title: Re: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: Targeteer on 01/28/2019 10:16 pm
Still hasn't been seen but it's been heard enough to generate update search elements...

http://www.satobs.org/seesat/Jan-2019/0126.html
Title: Re: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: MATTBLAK on 01/28/2019 10:45 pm
Anyone know how many Delta IV-H launches there are left before the Vulcan launcher has it's debut? I imagine the D4-H would be retired around about then?
Title: Re: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: Newton_V on 01/28/2019 11:14 pm
With all the delays I lost sight of this one and just watched the launch video today.  I don't recall ever getting ride-along camera views from the Delta IV Heavy before.  Was nice to get to see booster sep and staging.  Were those cameras new?  Or they just hadn't televised them before?
Both.  Relatively new, and just not televised before.
Title: Re: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: Newton_V on 01/28/2019 11:16 pm
Anyone know how many Delta IV-H launches there are left before the Vulcan launcher has it's debut? I imagine the D4-H would be retired around about then?
They will overlap with Vulcan.  How many are left, is still possibly TBD.
Title: Re: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: eeergo on 01/29/2019 12:58 am
With all the delays I lost sight of this one and just watched the launch video today.  I don't recall ever getting ride-along camera views from the Delta IV Heavy before.  Was nice to get to see booster sep and staging.  Were those cameras new?  Or they just hadn't televised them before?
Both.  Relatively new, and just not televised before.

They were used already in the first few flights of DIV-H, weren't they? I thought most of the flights featured them but only some select major ones were broadcast.

https://www.youtube.com/watch?v=TYg3LBle1rg
Title: Re: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: Newton_V on 01/29/2019 02:50 am
Yeah, I was thinking of the suite that's now common on Atlas and Delta.
Title: Re: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: ZachS09 on 01/29/2019 04:46 am
eeergo, to my knowledge, Delta IV Heavy rocketcams were used on five missions:

- The demo flight carrying a dummy payload and two microsats (12/21/2004)

- DSP 23 (11/11/2007)

- EFT-1 (12/5/2014)

- Parker Solar Probe (8/12/2018)

- NROL-71 (01/19/2019)
Title: Re: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: Targeteer on 02/02/2019 04:51 pm
Finally seen by the amateur observer network    392 X 418km

http://www.satobs.org/seesat/Feb-2019/0003.html

I don't get a chance until Feb 10

https://www.heavens-above.com/PassSummary.aspx?satid=43941&
Title: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: Star One on 02/02/2019 07:25 pm
Finally seen by the amateur observer network    392 X 418km

http://www.satobs.org/seesat/Feb-2019/0003.html

I don't get a chance until Feb 10

https://www.heavens-above.com/PassSummary.aspx?satid=43941&amp;

To add it appears from that posting to be pretty likely a KH-11 (Block 5).
Title: Re: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: Star One on 02/06/2019 06:47 am
Updated elements for USA 290.

http://www.satobs.org/seesat/Feb-2019/0011.html

http://www.satobs.org/seesat/Feb-2019/0014.html

Mr Molczan states more commentary to come soon.
Title: Re: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: edkyle99 on 02/06/2019 01:02 pm
To add it appears from that posting to be pretty likely a KH-11 (Block 5).
I'm skeptical.  It's not sun synchronous.  Every single KH-11 that has flown before went to a 97-98 deg sun synchronous orbit.  This one is at 73.6 degrees inclination.  Whatever this is, it has to be able to "see" at night. 

 - Ed Kyle
Title: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: Star One on 02/06/2019 03:04 pm
To add it appears from that posting to be pretty likely a KH-11 (Block 5).
I'm skeptical.  It's not sun synchronous.  Every single KH-11 that has flown before went to a 97-98 deg sun synchronous orbit.  This one is at 73.6 degrees inclination.  Whatever this is, it has to be able to "see" at night. 

 - Ed Kyle

As has been discussed previously there are reasons for an electrooptical satellite to be in a non-sun synchronous orbit.
Title: Re: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: Star One on 02/06/2019 07:48 pm
Updated elements.

http://www.satobs.org/seesat/Feb-2019/0028.html
Title: Re: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: FutureSpaceTourist on 02/08/2019 12:31 pm
https://www.youtube.com/watch?v=ZqQihgWvx0I
Title: Re: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: Lars-J on 02/08/2019 04:52 pm
Very cool rocketcam video!  8) Some observations/questions:
- booster (or camera) shake at MAX-Q
- dog leg turn at 1:24?
- what is the dark spot that grows on the central booster coupler, starting at 2:54? Ice melting? Paint flaking off?
- ring of ice on the RL-10 nozzle extension  :)
Title: Re: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: ugordan on 02/08/2019 04:59 pm
- dog leg turn at 1:24?

Probably just a result of wind shear at altitude.

- what is the dark spot that grows on the central booster coupler, starting at 2:54? Ice melting? Paint flaking off?

Most likely due to aeroheating caused by a localized shock-induced hotspot.
Title: Re: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: Star One on 02/13/2019 06:29 am
Updated elements.

http://www.satobs.org/seesat/Feb-2019/0039.html
Title: Re: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: eeergo on 02/20/2019 07:34 pm
https://twitter.com/torybruno/status/1098294114439725057
Title: Re: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: Star One on 02/20/2019 09:27 pm
Updated elements.

http://www.satobs.org/seesat/Feb-2019/0081.html
Title: Re: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: Jdeshetler on 03/08/2019 03:23 am
Multi-views with my remote cameras and onsite audio recorder.

https://www.youtube.com/watch?v=k3kVfag6EoU
Title: Re: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019
Post by: catdlr on 03/15/2019 02:10 am
NROL-71 Liftoff: A Vandenberg Story


National Reconnaissance Office
Published on Mar 14, 2019

On Jan. 19, 2019 at 11:10 a.m. PST, NROL-71 -- carrying a National Reconnaissance Office (NRO) payload -- successfully launched aboard a United Launch Alliance Delta IV Heavy rocket from Space Launch Complex-6, Vandenberg Air Force Base (VAFB), California. This video shares NROL-71's launch journey at VAFB.

https://www.youtube.com/watch?v=Ic_HECE_q4M?t=001

https://www.youtube.com/watch?v=Ic_HECE_q4M