Author Topic: SpaceX F9 : Starlink group 3-1 : Vandenberg : 11 July 2022 (01:39 UTC)  (Read 19998 times)

Offline Steven Pietrobon

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Liftoff!
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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T+1 minute.
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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T+2 minutes.
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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MECO, staging and fairing separation.
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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T+4 minutes.
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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T+5 minutes. Both vehicles are following nominal trajectories.
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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T+6 minutes.
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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Entry burn ignition and shutdown.
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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T+8 minutes. Stage 1 landing burn.
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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Touchdown!
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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SECO.
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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Nominal orbit insertion.

End of webcast.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline SPKirsch

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NSF tweets:

https://twitter.com/NASASpaceflight/status/1546308514267676673
Quote
LAUNCH! SpaceX Falcon 9 B1063-6 launches with Starlink 3-1 from Vandenberg.

Overview: https://nasaspaceflight.com/2022/07/starlink-3-1/ - by Anthony Iemole (@SpaceXFan97)

NSF Livestream:
youtube.com/watch?v=WTkgR2pqD18
https://twitter.com/NASASpaceflight/status/1546309107887611904
Quote
Staging 1-2! Cool tracking from our cams.
https://twitter.com/NASASpaceflight/status/1546310592394313728
Quote
Suddenly, Booster! And a bullseye.

Falcon 9 B1063-6 lands on SpaceX Drone Ship "Of Course I Still Love You".
youtube.com/watch?v=WTkgR2pqD18
« Last Edit: 07/11/2022 01:57 am by SPKirsch »

Offline Steven Pietrobon

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Upcoming events:

00:53:56    2nd stage engine starts (SES-2)
00:53:57    2nd stage engine cutoff (SECO-2)
01:02:58    Starlink satellites deploy
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Online LouScheffer

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Entry burn seemed higher and slightly shorter than usual.  Maybe SpaceX is trying to let the atmosphere do more of the work?

This mission, entry burn:
   start 60.0km, 6:24
   end   42.4 km, 6:42  (18 seconds)

Last mission
    start 55 km, 6:51
    end   36 km, 7:10 (19 seconds)

So overall it looks like the burn was 6 km higher.  Lots of lag on telemetry, though, so this could be spurious.

Offline SPKirsch

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In the webcast - after fairing separation:

"... marking the second flight for those fairing halves."
« Last Edit: 07/11/2022 02:04 am by SPKirsch »

Offline oldAtlas_Eguy

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Entry burn seemed higher and slightly shorter than usual.  Maybe SpaceX is trying to let the atmosphere do more of the work?

This mission, entry burn:
   start 60.0km, 6:24
   end   42.4 km, 6:42  (18 seconds)

Last mission
    start 55 km, 6:51
    end   36 km, 7:10 (19 seconds)

So overall it looks like the burn was 6 km higher.  Lots of lag on telemetry, though, so this could be spurious.
Also since this is a complete different profile Starlink mission to a different inclination. Therefore the remaining propellant in the tanks will be different and I would be surprised if the burn time was not different.

Offline Steven Pietrobon

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Flying away from Madagascar. The second burn should have occurred by now.
« Last Edit: 07/11/2022 02:35 am by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline SPKirsch

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https://twitter.com/SpaceX/status/1546321864540139520
Quote
Second burn of the Merlin Vacuum engine complete; ~9 minutes until Starlink satellites deploy

Offline Steven Pietrobon

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Separation should have occurred by now.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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