Author Topic: FAILURE: Relativity Terran 1 Test Flight : CCSFS SLC-16 : 23 Mar 2023 03:25 UTC (Read 177667 times)

FutureSpaceTourist · « **Reply #240 on:** 03/08/2023 07:00 pm »

Recycle at new T-0 of 20:55 UTV

FutureSpaceTourist · « **Reply #241 on:** 03/08/2023 07:00 pm »

S2 oxygen temperatures were out of limits, causing abort

ZachS09 · « **Reply #242 on:** 03/08/2023 07:04 pm »

Quote from: FutureSpaceTourist on 03/08/2023 07:00 pm

S2 oxygen temperatures were out of limits, causing abort

Could the Florida weather have to do with the Stage 2 LOX temperature being out of limits (and potentially the previous prop conditioning)?

FutureSpaceTourist · « **Reply #243 on:** 03/08/2023 07:05 pm »

Actually now saying T-0 is 20:45 UTC

FutureSpaceTourist · « **Reply #244 on:** 03/08/2023 07:09 pm »

Winds look strong on palm trees

RDMM2081 · « **Reply #245 on:** 03/08/2023 07:14 pm »

Quote from: ZachS09 on 03/08/2023 07:04 pm

Quote from: FutureSpaceTourist on 03/08/2023 07:00 pm
S2 oxygen temperatures were out of limits, causing abort

Could the Florida weather have to do with the Stage 2 LOX temperature being out of limits (and potentially the previous prop conditioning)?

Complete WAG here but my mind goes to the morning full of "propellant conditioning" that they've been doing and makes me wonder if the S2 prop actually got too cold for the limits they had set during their previous WDR. Just a complete WAG though.

zubenelgenubi · « **Reply #246 on:** 03/08/2023 07:15 pm »

Quote from: FutureSpaceTourist on 03/08/2023 07:00 pm

S2 oxygen temperatures were out of limits, causing abort

Space music playing as we wait. 🎶 🎵 ✨️

FutureSpaceTourist · « **Reply #247 on:** 03/08/2023 07:15 pm »

T-30 attempt 4 (and last attempt today as no more launch window after this)

FutureSpaceTourist · « **Reply #248 on:** 03/08/2023 07:22 pm »

SCRUB! (announced by LD on countdown net)

FutureSpaceTourist · « **Reply #249 on:** 03/08/2023 07:27 pm »

More venting

FutureSpaceTourist · « **Reply #250 on:** 03/08/2023 07:30 pm »

Web cast ended - no further updates on scrub or next launch attempt

FutureSpaceTourist · « **Reply #251 on:** 03/08/2023 07:32 pm »

A valiant attempt today and I thought a good first web stream too.

I'm sure Relativity will be back soon and launching.

zubenelgenubi · « **Reply #252 on:** 03/08/2023 07:34 pm »

Quote from: FutureSpaceTourist on 03/08/2023 07:30 pm

Web cast ended - no further updates on scrub or next launch attempt

Webcast hosts promise updates via social media, but the tweets petered out an hour ago.

https://twitter.com/relativityspace/status/1633549734672576512

Quote

GO to proceed

zubenelgenubi · « **Reply #253 on:** 03/08/2023 07:47 pm »

https://twitter.com/relativityspace/status/1633569580470738947

Quote

Today’s launch attempt for #GLHF Terran 1 was scrubbed due to exceeding launch commit criteria limits for propellant thermal conditions on stage 2. The team is working diligently toward our next launch window in the coming days. Check back here soon for updates on the launch window for our next attempt. To all of you who tuned in today, as our launch director said: Thanks for playing! #GLHF

Terran 1 launch window on March 9 overlaps the Falcon 9/OneWeb Flight 17 launch time from SLC-40.

Quote from: Ken the Bin on 03/03/2023 06:10 pm

NGA notice.

Quote from: NGA

031831Z MAR 23
NAVAREA IV 232/23(11,26).
WESTERN NORTH ATLANTIC.
FLORIDA.
1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING
   081800Z TO 082122Z MAR, ALTERNATE
   091800Z TO 092122Z MAR IN AREAS BOUND BY:
   A. 28-34.38N 080-34.27W, 29-17.00N 078-11.00W,
      28-35.00N 077-54.00W, 28-22.00N 074-01.00W,
      28-28.00N 073-39.00W, 28-26.00N 073-13.00W,
      28-14.00N 072-56.00W, 28-08.00N 071-49.00W,
      28-01.00N 071-49.00W, 28-06.00N 072-57.00W,
      27-57.00N 073-11.00W, 27-57.00N 073-43.00W,
      28-09.00N 074-01.00W, 28-20.00N 077-57.00W,
      27-49.00N 078-38.00W, 28-27.00N 080-33.00W.
   B. 28-01.00N 074-36.00W, 28-29.00N 074-36.00W,
      28-43.00N 074-00.00W, 28-43.00N 073-20.00W,
      28-24.00N 072-52.00W, 28-04.00N 072-52.00W,
      27-46.00N 073-20.00W, 27-44.00N 074-05.00W.
2. CANCEL THIS MSG 092222Z MAR 23.

OneWeb Flight 17:

Quote from: Conexion Espacial on 03/08/2023 06:56 pm

Quote
SpaceX mission blurb

SpaceX is targeting Thursday, March 9 at 2:13 p.m. ET (19:13 UTC) for Falcon 9’s launch of the the OneWeb Launch 17 mission to low-Earth orbit from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida. If needed, there is a backup opportunity available on Friday, March 10 at 2:08 p.m. ET (19:08 UTC).
The first stage booster supporting this mission previously launched GPS III Space Vehicle 04, GPS III Space Vehicle 05, Inspiration4, Ax-1, Nilesat 301, and seven Starlink missions. Following stage separation, the first stage will land on Landing Zone 1 (LZ-1) at Cape Canaveral Space Force Station.

Edit: No launch conflict--see next post.

FutureSpaceTourist · « **Reply #254 on:** 03/08/2023 08:10 pm »

https://twitter.com/thetimellis/status/1633570302239072258

Quote

We will work toward our next launch window in the coming days. Due to methane/Liquid Natural Gas propellant conditioning, it will take a few days until our next attempt. We will update once we have an official next date. Onward, and proud of the team today for a professional and smooth first operation! twitter.com/relativityspac…

Edit to add:

https://twitter.com/relativityspace/status/1633577293716111361

Quote

When using liquid natural gas, the methane needs time to get to the right concentration. This is why our next attempt will be a few days from now. More to come soon!

FutureSpaceTourist · « **Reply #255 on:** 03/08/2023 09:25 pm »

https://twitter.com/relativityspace/status/1633594730138181646

Quote

Player ready? Yup. Our next launch attempt window is confirmed for this Saturday, March 11 from 13:00 – 16:00 ET. #GLHF

Ken the Bin · « **Reply #256 on:** 03/08/2023 10:01 pm »

Cancel-and-replace NGA notice.

Note that Sunday's backup opportunity has the same local time, but is an hour earlier UTC due to the change of local time from EST to EDT.

Quote from: NGA

082241Z MAR 23
NAVAREA IV 258/23(11,26).
WESTERN NORTH ATLANTIC.
FLORIDA.
1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING
   111800Z TO 112122Z MAR, ALTERNATE
   121700Z TO 122022Z MAR IN AREAS BOUND BY:
   A. 28-34.38N 080-34.27W, 29-17.00N 078-11.00W,
      28-35.00N 077-54.00W, 28-22.00N 074-01.00W,
      28-28.00N 073-39.00W, 28-26.00N 073-13.00W,
      28-14.00N 072-56.00W, 28-08.00N 071-49.00W,
      28-01.00N 071-49.00W, 28-06.00N 072-57.00W,
      27-57.00N 073-11.00W, 27-57.00N 073-43.00W,
      28-09.00N 074-01.00W, 28-20.00N 077-57.00W,
      27-49.00N 078-38.00W, 28-27.00N 080-33.00W.
   B. 28-01.00N 074-36.00W, 28-29.00N 074-36.00W,
      28-43.00N 074-00.00W, 28-43.00N 073-20.00W,
      28-24.00N 072-52.00W, 28-04.00N 072-52.00W,
      27-46.00N 073-20.00W, 27-44.00N 074-05.00W.
2. CANCEL NAVAREA IV 232/23.
3. CANCEL THIS MSG 122122Z MAR 23.

FutureSpaceTourist · « **Reply #257 on:** 03/08/2023 10:44 pm »

L-3 launch weather forecast is 90% GO

FutureSpaceTourist · « **Reply #258 on:** 03/08/2023 10:46 pm »

Why it takes several days for next launch attempt:

https://twitter.com/robotbeat/status/1633579428738396161

Quote

@thetimellis I’d love to learn more about this. Are you relying on a certain hydrocarbon distribution in the tank, other than pure methane? Like, waiting for heavier ethane to settle towards the bottom so it can be used earlier in flight when its density helps most or something?

twitter.com/robotbeat/status/1633590347694583808

Quote

The heavier hydrocarbons could actually boost the Isp-density early in the stage burn, though, which would increase overall performance (per vehicle dry mass) over using pure methane.

https://twitter.com/thetimellis/status/1633598429682188288

Quote

Yes. But pump suction margin matters too, needs to all be within design limits

Conexion Espacial · « **Reply #259 on:** 03/09/2023 12:32 am »

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