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Sigmetnow

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Re: SpaceX
« Reply #1050 on: January 16, 2021, 07:07:42 PM »
—- Starship SN9
Quote
Mary (@BocaChicaGal)1/15/21, 1:42 PM
Raptor SN44 was a naughty Raptor.   
https://twitter.com/bocachicagal/status/1350151330439036928
⬇️ Photo below

Quote
John Kraus (@johnkrausphotos)1/14/21, 10:42 AM
Starship under the stars
https://twitter.com/johnkrausphotos/status/1349743604059807746
⬇️ Photo below.
Elon Musk:  Nice shot

< Still aiming for SN9 flight this weekend?
Elon Musk (@elonmusk)1/15/21, 12:41 AM
Two of the engines need slight repairs, so will be switched out

Everyday Astronaut:
When SN8 had to swap a Raptor, it was 26 days between Raptor swapping and flight  :o I might head home for a bit if they’re replacing two
Elon Musk:
We’re making major improvements to ease of engine swap. Needs to be a few hours at most.
<< Need another static fire then I'm assuming?
Elon Musk:
Probably wise

—- 
Eric Berger hears things suggesting a delay before SN9 flight… but as of a few minutes ago, the TFRs for Jan 18+ are still posted.
Quote
Eric Berger (@SciGuySpace)1/15/21, 3:49 PM
Regarding the fate of Starship prototype SN9, I have begun to hear bits and pieces that are not great news. There's nothing I consider reportable on what has happened, but I would now bet against SN9 flying before February.
https://twitter.com/sciguyspace/status/1350183316335558661

Quote
Space TFRs (@SpaceTfrs) 1/14/21, 11:36 PM
Brownsville (TX) SpaceX high-altitude flight TFR: From January 18, 2021 at 1400 UTC To January 18, 2021 at 2359 UTC
Altitude: From the surface to space
tfr.faa.gov/save_pages/det…
https://twitter.com/spacetfrs/status/1349938385872449540
Also for Jan 19 & 20.  Issued jan 15.

—-
Brady Kenniston:
Starship SN9 waits for its launch date following three separate static fires in one day. Meanwhile Starship SN10's Aft Flaps are mounted ahead of its rollout to the launch pad following SN9's liftoff:
SpaceX Boca Chica: SN9 Looks Great After Triple Static Fire - SN10 Aft Flaps Mounted
➡️ https://www.youtube.com/watch?v=DgAs5fBdXFs&feature=youtu.be
Includes a look inside the new LOX Distiller. When a tank is not just a tank!
⬇️ Screencap below.

 —-
Quote
Michael Baylor (@nextspaceflight) 1/15/21, 10:48 PM
SpaceX is moving quickly to recover from the Starship SN9 hiccup. A Raptor is underneath the vehicle and about to be lifted into place just hours after an engine was removed.
https://twitter.com/nextspaceflight/status/1350288821682724864
Jack Beyer (@thejackbeyer) 1/15/21, 11:28 PM
A fresh Raptor Engine waiting to be installed on Starship SN9 earlier tonight. @NASASpaceflight

Chris B - NSF (@NASASpaceflight)1/16/21, 2:10 AM
Starship SN9 is swapping out Raptors following issues related to the recent Static Fire test. While a new launch date target is awaited, work continues around SpaceX Boca Chica.
Video & Photos from Mary (@BocaChicaGal). Edited by @NGautschi
➡️youtu.be/89h2JHmMOIs 

John Kraus (@johnkrausphotos) took several up-close photos of Raptor SN44 after it was removed:
https://twitter.com/johnkrausphotos/status/1350196806303559680

https://twitter.com/johnkrausphotos/status/1350202176489074688

https://twitter.com/johnkrausphotos/status/1350198513192333322

https://twitter.com/thejackbeyer/status/1350201503492026371
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Sigmetnow

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Re: SpaceX
« Reply #1051 on: January 16, 2021, 09:22:12 PM »
—- SLS Green Run hot fire test is moved up
William Harwood (@cbs_spacenews)1/16/21, 3:16 PM
SLS: Good afternoon; NASA has moved up the planned test firing of an SLS first stage booster at the Stennis Space Center in Mississippi to 4pm EST, 1 hour earlier than originally planned; NASA TV coverage will begin at 3:20pm: [right now!]
➡️https://www.youtube.com/watch?v=21X5lGlDOfg
https://twitter.com/cbs_spacenews/status/1350537352247185411

Michael Baylor (@nextspaceflight)1/16/21, 3:10 PM
LIVE: SLS core stage hot fire test
The NASASpaceflight team will have our expert SLS writer Philip Sloss on the broadcast for today's crucial test of the core stage along with @ChrisG_NSF and @KSpaceAcademy.
➡️youtu.be/s1bkX9f52NI
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Sigmetnow

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Re: SpaceX
« Reply #1052 on: January 17, 2021, 12:50:11 AM »
—- SLS Green Run test — aborted
Sat jan 16
At 5:27 pm ET. after several hours of holds/reschedules, the SLS core stage ignited and fired for about 67 seconds of the eight and a half minute test, then shut down after a “Major Component Failure” was detected on Engine 4, just before an important engine gimbal test was to start.

Quote
Wayne Hale (@waynehale)1/16/21, 5:30 PM
Well MCF was not a call this ascent flight director ever wanted to hear: Major Component Failure is detected by the SSME controller.
https://twitter.com/waynehale/status/1350571106038657024
Wayne Hale:
Just to be clear, all that software in the SSME controller is designed to detect a problem and shut down the engine before really bad things happen. Could be instrumentation failure too.

Quote
William Harwood (@cbs_spacenews)1/16/21, 5:40 PM
SLS: Listening to test team audio loop, a controller called out an "MCF on engine 4" a few seconds before the engines were commanded to begin a gimbal steering sequence. "Copy that," the test director replied. "But we're still running, still got 4 good engines, right?"
https://twitter.com/cbs_spacenews/status/1350573760051630081
William Harwood:
SLS: Timing clarification: The "we've got a shutdown" call came almost exactly 30 seconds after the "MCF on engine 4" call, and just a few seconds into what was expected to be a gimbaling test of the main engine nozzles
Wayne Hale:
Again, working off my creaky memory, an engine doesn’t declare it is in shutdown phase until Pc drops below 30% - which can take about 3 seconds. Or that’s the way it used to work - on the shuttle

If this had been an actual flight, it likely would have meant loss of vehicle. Could they have shut down the affected engine and continued to a safe orbit? Or would the launch escape system have activated?

Quote
Eric Berger (@SciGuySpace)1/16/21, 5:51 PM
Interesting note here from Wayne about swapping out an engine. I'd think they could do this at Stennis, but the rocket may need to go back to the factory at Michoud.
Kathryn Crowe (@Kat_Cr)1/16/21, 5:37 PM
No matter what the cause of the early shutdown was, the safe shutdown of the stage with an early cut is also by itself a major engineering success - and valuable test data points #GreenRunTest
Wayne Hale (@waynehale)1/16/21, 5:40 PM
Completely concur. Very valuable. Now the discussions will begin as to whether there was enough data collected or if the test needs to be rerun - either way that engine will likely be changed out. Of course the experts will probably tell us at the post test conference shortly 
https://twitter.com/waynehale/status/1350573676282982400
Post test conference has been cancelled.

Quote
Eric Berger (@SciGuySpace)1/16/21, 6:35 PM
I'm told it was indeed an engine problem.
https://twitter.com/sciguyspace/status/1350587464113655811
Eric Berger (@SciGuySpace)1/16/21, 5:53 PM
For those of you who were still holding out hope for a 2021 Artemis I launch ... that hope died today. It required shipping the core stage from Stennis in February. That won't be happening.

There has also been a concern that they have already begun stacking the solid rocket boosters, which are only certified for 12 months once assembled.
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Sigmetnow

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Re: SpaceX
« Reply #1053 on: January 17, 2021, 01:43:31 AM »
Update: SLS press conference in 20 minutes (8pm ET), per nasa.gov

—-
Quote
Eric Berger (@SciGuySpace) 1/16/21, 7:03 PM
Even if today's test had been perfect there was no pathway to a Moon landing in 2024. The Mars landing in 2029 is hilarious unless Wicker is low-key announcing full funding for Starship in this tweet.
https://twitter.com/sciguyspace/status/1350594611455135751

Senator Roger Wicker (@SenatorWicker) 1/16/21, 6:43 PM

I commend @NASA Administrator @JimBridenstine for his stewardship of NASA & the SLS program. We are still on track to take the first woman to the moon by 2024 & complete a Mars landing by 2029. I know that bipartisan support for this program and space exploration will continue.
https://twitter.com/senatorwicker/status/1350589426498469889 
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Sigmetnow

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Re: SpaceX
« Reply #1054 on: January 17, 2021, 02:08:10 PM »
—- SLS Green Run abort
Quote
Eric Berger (@SciGuySpace) 1/16/21, 8:37 PM
Big takeaway from SLS hot fire news conference: No specifics on what the next steps are. Need to look at data. SLS program manager John Honeycutt did note they had hoped to get 250 seconds of data but only got 60.
https://twitter.com/sciguyspace/status/1350618338880331780
Eric Berger:
Only real news was a report of a “flash” near engine four in the thermal protection area. No details. The engine section was among the most challenging parts of the core stage design.

< Thank you for asking specifics - my take away is that had lots more data they didn’t want to share because it could lead to negative inferences.  Also Honeycutt had very little specific info for a multi billion dollar program manager - didn’t instill confidence
> ....and they’re already talking about skipping all that and just shipping it to the Cape and do engine swaps there. Someone should tell that in 96 hours a new Congress could drop this whole program if they keep screwing this up.
>> They also talked about not flying a second OFT for Starliner in [that] post launch press conference, so I don’t take forward looking statements at this point too seriously.
< Took a short cut on the wet dress rehearsal. Now thinking of taking another shortcut on the green run test. They’ll keep sweeping problems under the rug until ….

Video: SLS core stage test-firing ends early
https://spaceflightnow.com/2021/01/16/video-sls-core-stage-test-firing-ends-early/

NASA studying cause of early end to NASA moon rocket test-firing
https://spaceflightnow.com/2021/01/17/nasa-studying-cause-of-early-end-to-nasa-moon-rocket-test-firing/


Even if nothing required fixing or replacement, the quickest the rocket could be “dried out” (the water trapped from the hydrogen/oxygen combustion), and inspected for a retest would be 3 to 4 weeks.  And Stennis requires 5 days to set up the fuel barges, etc. for a test.  Afterward, it would then be another 3 to 4 weeks to “dry out” the rocket again so it could leave Stennis for KSC.  So, the core would likely be at Stennis until April or May even without an engine swap (but they do have extra engines available at Stennis, if needed).

Just a thought about why the rocket did not shut down immediately after the MCF detection:  Given what we’ve seen of Boeing’s (lack of) software prowess in the Starliner OFT (and the 737-MAX), it’s not a stretch to imagine the program was trying to “get the rocket to a safe orbit on the three remaining engines” — without escape coding that said, “look, you are our only flight article, not a prototype, so if anything goes really really wrong, just shut down immediately and save yourself.”


—- Starship: new TFRs posted
7200 feet = 2200 meters
Quote
Michael Baylor (@nextspaceflight) 1/16/21, 2:13 PM Starship SN9 update:
- Flight test Temporary Flight Restriction (TFR) for the 21st was added today
- Flight test TFRs currently posted for Jan. 19, 20, and 21
- New TFR posted for Jan. 18-21 up to 7,200 ft
- Not sure on the purpose for the 7,200 ft TFR
tfr.faa.gov/tfr2/list.html 
https://twitter.com/nextspaceflight/status/1350521650542858240
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Sigmetnow

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Re: SpaceX
« Reply #1055 on: Today at 01:37:23 AM »
—-  Starlink launch tomorrow (morning)
1345 GMT.   “Starlink V1.0-L16”
Quote
SpaceX (@SpaceX)1/17/21, 1:45 PM
Targeting Monday, January 18 at 8:45 a.m. EST for Falcon 9 launch of 60 Starlink satellites from LC-39A; Falcon 9’s first stage previously supported seven missions. Team is keeping an eye on launch and recovery weather → spacex.com/launches
https://twitter.com/spacex/status/1350876908867620864

Michael Baylor (@nextspaceflight)1/17/21, 1:47 PM

This will be the first eighth flight of a Falcon booster and the fastest turnaround time between flights (around 35 days).
nextspaceflight.com/launches/reuse…  [ https://t.co/CLAWIlESjq
Wow, fastest turnaround previously was 50 days.  Now 35.


—- Starship
Quote
Michael Baylor (@nextspaceflight) 1/16/21, 10:56 PM
VIDEO: While Starship SN9 repairs continue, SpaceX is making progress on new prototypes. Components for SN17 are already being spotted!
Video & Photos from Mary (@BocaChicaGal). Edited by Nic Gautschi (@NGautschi).

https://www.youtube.com/watch?v=U-gCdbjEiq4&feature=youtu.be
https://twitter.com/nextspaceflight/status/1350653215033880577

—-
Wondering when the next Starship flight will occur?
Michael Baylor has procured the meme-famous wenhop (and whenhop) urls to serve Starship fans.  ;D
wenhop.com
whenhop.com

—- SpaceX 2004
New article, but features (at least on my feed) a video interview from July 2004: Musk speaking about the future of space transportation and SpaceX.
Elon Musk donates $5 million to education group Khan Academy
https://www.cnn.com/2021/01/17/us/elon-musk-khan-academy-5-million-donation-trnd/index.html


—- Virgin Orbit plane-launched rocket successfully orbits smallsats for NASA
Quote
Virgin Orbit (@Virgin_Orbit) 1/17/21, 5:28 PM
Payloads successfully deployed into our target orbit! We are so, so proud to say that LauncherOne has now completed its first mission to space, carrying 9 CubeSat missions into Low Earth Orbit for our friends @NASA. #LaunchDemo2
https://twitter.com/virgin_orbit/status/1350933162398986240

Virgin Orbit confirms the LauncherOne rocket reached a preliminary orbit after releasing from its Boeing 747 carrier aircraft over the Pacific Ocean at 11:39 a.m. PST (2:39 p.m. EST; 1939 GMT).
Virgin’s satellite launcher reaches orbit on second try
https://spaceflightnow.com/2021/01/18/virgins-satellite-launcher-reaches-orbit-on-second-try/
Quote
Eric Berger (@SciGuySpace) 1/17/21, 2:52 PM
You can count the number of privately developed orbital rockets on a single hand. And this is a first for a liquid fueled, air-launched rocket. Great accomplishment for Virgin Orbit.
https://twitter.com/sciguyspace/status/1350893744904679424


—— SLS, though
"It is difficult to say what happened Saturday is anything but a bitter disappointment. This rocket core stage was moved to Stennis from its factory in nearby Louisiana more than one calendar year ago, with months of preparations for this critical test."
After a decade, NASA’s big rocket fails its first real test
"It's not everything we hoped it would be."
Eric Berger - 1/16/2021, 10:57 PM
https://arstechnica.com/science/2021/01/nasas-space-launch-system-rocket-shuts-down-after-just-67-seconds/

—- Reference: the Virgin/Chad meme
;D “infographic” at the link.
➡️ https://twitter.com/kekcrypto/status/1350686134884556800
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vox_mundi

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Re: SpaceX
« Reply #1056 on: Today at 01:45:47 AM »
Quote
... Wow, fastest turnaround previously was 50 days.  Now 35.

Soon ...

“There are three classes of people: those who see. Those who see when they are shown. Those who do not see.” ― Leonardo da Vinci

Insensible before the wave so soon released by callous fate. Affected most, they understand the least, and understanding, when it comes, invariably arrives too late