Author Topic: LIVE: SpaceX Falcon 9 - NROL-76 - May 1, 2017 - UPDATES  (Read 124327 times)

Offline docmordrid

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Re: SpaceX Falcon 9 - NROL-76 - April 30, 2017 - UPDATES
« Reply #100 on: 04/30/2017 11:15 AM »
Heard 24 hour reset.
DM

Offline Steven Pietrobon

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Re: SCRUB: SpaceX Falcon 9 - NROL-76 - April 30, 2017 - UPDATES
« Reply #101 on: 04/30/2017 11:16 AM »
Launch is scrubbed!
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Chris Bergin

Yep, Scrub called. Not going to use the window. 24 hours.

Offline Steven Pietrobon

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Re: SCRUB: SpaceX Falcon 9 - NROL-76 - April 30, 2017 - UPDATES
« Reply #103 on: 04/30/2017 11:17 AM »
End of webcast.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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Re: SCRUB: SpaceX Falcon 9 - NROL-76 - April 30, 2017 - UPDATES
« Reply #104 on: 04/30/2017 11:20 AM »
Closing out with live picture. Big vent happening now.

See you same SpaceX-Time and same SpaceX-channel tomorrow!
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline vaporcobra

Heard "fire-ex ready" after the TOTO sensor hold. Not the best thing to hear 😐
spaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaace

Online FutureSpaceTourist

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Re: SCRUB: SpaceX Falcon 9 - NROL-76 - April 30, 2017 - UPDATES
« Reply #106 on: 04/30/2017 11:35 AM »
Quote
Standing down today due to a sensor issue; backup launch opportunity tomorrow morning.

https://twitter.com/spacex/status/858642945884303360

Offline LouScheffer

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Re: SCRUB: SpaceX Falcon 9 - NROL-76 - April 30, 2017 - UPDATES
« Reply #107 on: 04/30/2017 12:31 PM »
Without a payload attached to the second stage, the Falcon 9 launch vehicle weighs 553,600 kilograms, contains 526,950 kilograms of propellant...
What is the source of these (quite precise) figures?  Pre-densification, there was an Environmental Impact Report that quites the exact capacities, but as far as I know that was not updated.  Also the empty mass of each stage has been the subject of much speculation.  If we knew the sum exactly that would be very helpful.

So where did these figures come from?

Offline Chris Bergin

Per L2 naughty "out of family" sensor that scrubbed the SpaceX Falcon 9 NROL-76 launch was a TOTO (Temperature Ox Tank Outlet) sensor. They had redundancy, but didn't want to risk losing another one, so the "abundance of caution" was as presented. Important to note, as some people see SpaceX as a bit "gung ho", they are as cautious as required, as proven.

24 hours is the current plan, but the access (depending which TOTO sensor on the first stage) for R&R will determine turnaround.

Offline ChrisGebhardt

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Re: SCRUB: SpaceX Falcon 9 - NROL-76 - April 30, 2017 - UPDATES
« Reply #109 on: 04/30/2017 01:25 PM »
Updated launch weather forecast for tomorrow.

LCC wind limit for Falcon 9 is 30kts.  So we're predicted to be under that for tomorrow, too.
« Last Edit: 04/30/2017 01:29 PM by ChrisGebhardt »

Online FutureSpaceTourist

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Re: SCRUB: SpaceX Falcon 9 - NROL-76 - April 30, 2017 - UPDATES
« Reply #110 on: 04/30/2017 01:55 PM »
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#CCAFS Inbound traffic 2moro 3-9:30a.m. will b stopped @ Phillips Parkway, Flight Control Road & NASA Causeway west of the Industrial Area

https://twitter.com/45thspacewing/status/858677131584385024

Online FutureSpaceTourist

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Re: SCRUB: SpaceX Falcon 9 - NROL-76 - April 30, 2017 - UPDATES
« Reply #111 on: 04/30/2017 06:31 PM »
Hi-res pad photos from SpaceX

Offline CameronD

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Re: SCRUB: SpaceX Falcon 9 - NROL-76 - April 30, 2017 - UPDATES
« Reply #112 on: 05/01/2017 12:06 AM »
From http://www.spacex.com/webcast:

Quote
SpaceX is targeting launch of NROL-76 from historic Launch Complex 39A (LC-39A) at NASA’s Kennedy Space Center in Florida. Following scrub of the initial attempt due to a sensor issue, the two hour launch window now opens on Monday, May 1, at 7:00 a.m. EDT, or 11:00 UTC.
With sufficient thrust, pigs fly just fine - however, this is not necessarily a good idea. It is hard to be sure where they are
going to land, and it could be dangerous sitting under them as they fly overhead.

Online Orbiter

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Re: LIVE: SpaceX Falcon 9 - NROL-76 - May 1, 2017 - UPDATES
« Reply #113 on: 05/01/2017 01:27 AM »
F9 still vertical on the launch pad as of 21:27L.
Attended space missions: STS-114, STS-124, STS-128, STS-135, Atlas V "Curiosity", Delta IV Heavy NROL-15, Atlas V MUOS-2, Delta IV Heavy NROL-37, SpaceX CRS-9, SpaceX JCSAT-16, Atlas V GOES-R, SpaceX SES-11.

Offline docmordrid

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Re: LIVE: SpaceX Falcon 9 - NROL-76 - May 1, 2017 - UPDATES
« Reply #114 on: 05/01/2017 03:48 AM »
DM

Offline Steven Pietrobon

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Re: LIVE: SpaceX Falcon 9 - NROL-76 - May 1, 2017 - UPDATES
« Reply #115 on: 05/01/2017 09:31 AM »
T-1 hour 30 minutes. Early morning at KSC.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline ChrisGebhardt

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Re: LIVE: SpaceX Falcon 9 - NROL-76 - May 1, 2017 - UPDATES
« Reply #116 on: 05/01/2017 09:32 AM »
If all is on track, fueling will begin @ 5:50am ET (20mins from now) to support launch @ opening of window at 7a.

Online KaiFarrimond

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Re: LIVE: SpaceX Falcon 9 - NROL-76 - May 1, 2017 - UPDATES
« Reply #117 on: 05/01/2017 09:38 AM »
A few minutes seem to have been added to the clock.
Of Course I Still Love You; We Have A Falcon 9 Onboard!

Online Galactic Penguin SST

William Harwood‏ @cbs_spacenews

F9/NROL76: Launch is again targeted for 7:15am

https://twitter.com/cbs_spacenews/status/858978994263384064
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Offline ChrisGebhardt

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Re: LIVE: SpaceX Falcon 9 - NROL-76 - May 1, 2017 - UPDATES
« Reply #119 on: 05/01/2017 09:44 AM »
With adjusted launch time to 0715 EDT, fielding ops should now pick up at 0605 EDT.

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