Author Topic: Delta IV-H - NROL-71 - (19:10 UTC) January 19, 2019  (Read 89927 times)

Offline Star One

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Delta IV-H - NROL-71 - January 19, 2019
« Reply #360 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 they are still speculating it’s KH-11 Block 5.
« Last Edit: 01/19/2019 07:48 pm by Star One »

Online Chris Bergin

Re: Delta IV-H - NROL-71 - January 19, 2019
« Reply #361 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.

Online Jdeshetler

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Re: Delta IV-H - NROL-71 - January 19, 2019
« Reply #362 on: 01/19/2019 07:56 pm »


Offline VDD1991

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Re: Delta IV-H - NROL-71 - January 19, 2019
« Reply #364 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.

Online jcm

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Re: Delta IV-H - NROL-71 - January 19, 2019
« Reply #365 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 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.
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Offline CobaltWolf

Re: Delta IV-H - NROL-71 - January 19, 2019
« Reply #366 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?
Author of the historic spaceflight mod Bluedog Design Bureau for Kerbal Space Program

Offline Wolfram66

Re: Delta IV-H - NROL-71 - January 19, 2019
« Reply #367 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

Offline fs10inator

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Re: Delta IV-H - NROL-71 - January 19, 2019
« Reply #368 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...
« Last Edit: 01/19/2019 09:07 pm by fs10inator »

Offline brahmanknight

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Re: Delta IV-H - NROL-71 - January 19, 2019
« Reply #369 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 they are still speculating it’s KH-11 Block 5.

And where exactly are said orbital photos of Lacrosse 5?

Online jcm

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Re: Delta IV-H - NROL-71 - January 19, 2019
« Reply #370 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!
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Offline hoku

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Re: Delta IV-H - NROL-71 - January 19, 2019
« Reply #371 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 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


Offline envy887

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Re: Delta IV-H - NROL-71 - January 19, 2019
« Reply #373 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.

Online FutureSpaceTourist

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Re: Delta IV-H - NROL-71 - January 19, 2019
« Reply #374 on: 01/19/2019 10:05 pm »
More great shots from ULA
« Last Edit: 01/19/2019 10:06 pm by FutureSpaceTourist »

Online FutureSpaceTourist

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Re: Delta IV-H - NROL-71 - January 19, 2019
« Reply #375 on: 01/19/2019 10:15 pm »

Offline ZachS09

Re: Delta IV-H - NROL-71 - January 19, 2019
« Reply #376 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.
Because the Falcon Heavy Test Flight was successful, it has inspired thousands of people to consider changing the future of space travel.

Offline catdlr

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Re: Delta IV-H - NROL-71 - January 19, 2019
« Reply #377 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

Tony De La Rosa

Offline catdlr

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Re: Delta IV-H - NROL-71 - January 19, 2019
« Reply #378 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

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Offline catdlr

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Re: Delta IV-H - NROL-71 - January 19, 2019
« Reply #379 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

Tony De La Rosa

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