Author Topic: SpaceX F9 : USA 328-331 / Globalstar FM15 : SLC-40 : 19 June 2022 (04:27 UTC)  (Read 75479 times)

Offline zubenelgenubi

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As we wait for SEI-3 and the (final) spacecraft separation, graphics and Starfish Prime's funky tunes.

Second stage telemetry display updates with Vandenberg acquisition of signal.  See change of altitude.

Second stage video views restored.

West coast USA satellite observers with clear skies may have gotten mystery satellite observations several minutes (circa 1 hr, 40 minutes elapsed time)--satellite sunlit, night on the surface.  A mystery satellite released after SECO-1 in a lower orbit would arrive sooner than the second stage.
« Last Edit: 06/19/2022 06:18 am by zubenelgenubi »
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Offline Galactic Penguin SST

https://spacenews.com/spacex-l3harris-win-space-development-agency-contracts-to-build-missile-warning-satellites/

This reminds me of SpaceX winning part of the DoD Space Development Agency Tracking Layer Tranche 0 LEO missile warning satellite contracts (along with L3 Harris) using the Starlink satellite bus. These aren't supposed to launch until September 2022 at the earliest (also on Falcon 9 along with LEO communication Transport Layer Tranche 0 satellites, by Lockheed Martin and York Space Systems, but to polar orbit from Vandenberg), but I can see SpaceX sending some test satellites up to orbit either at their own plans or by some unique US Government requirements earlier to mid-inclination LEO.
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Offline russianhalo117

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https://spacenews.com/spacex-l3harris-win-space-development-agency-contracts-to-build-missile-warning-satellites/

This reminds me of SpaceX winning part of the DoD Space Development Agency Tracking Layer Tranche 0 LEO missile warning satellite contracts (along with L3 Harris) using the Starlink satellite bus. These aren't supposed to launch until September 2022 at the earliest (also on Falcon 9 along with LEO communication Transport Layer Tranche 0 satellites, by Lockheed Martin and York Space Systems, but to polar orbit from Vandenberg), but I can see SpaceX sending some test satellites up to orbit either at their own plans or by some unique US Government requirements earlier to mid-inclination LEO.

For related reference PIRPL was the Cygnus hosted and deployed OPIR test payload.

Offline russianhalo117

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Nominal orbit insertion post SES-3/SECO-3.

Offline zubenelgenubi

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SEI-3 > SECO-3
« Last Edit: 06/19/2022 06:20 am by zubenelgenubi »
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Offline daveglo

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Just witnessed SES-3 from the ground outside St. Louis.  AWESOME!

To add: did NOT observe any leading/following objects.
« Last Edit: 06/19/2022 06:24 am by daveglo »

Offline russianhalo117

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FM15 deploy scheduled and confirmed.

Online FutureSpaceTourist

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https://twitter.com/spacex/status/1538378175977123842

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Liftoff!

https://twitter.com/nasaspaceflight/status/1538378205488459777

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SpaceX Falcon 9 B1061-9 launches Globalstar FM-15 from SLC-40.

Overview:
https://www.nasaspaceflight.com/2022/06/spacex-globalstar-falcon-9/

Livestream:
youtube.com/watch?v=W40YFNse9TE…
« Last Edit: 06/19/2022 06:49 am by FutureSpaceTourist »

Offline zubenelgenubi

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Spacecraft separation and webcast sign-off!

Congratulations to SpaceX and the entire launch campaign team!

Thank you for the always informative NSF webcast!
« Last Edit: 06/19/2022 06:25 am by zubenelgenubi »
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Online FutureSpaceTourist

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Online FutureSpaceTourist

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https://twitter.com/nasaspaceflight/status/1538380876815417344

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Falcon 9 B1061-9 lands on SpaceX Drone Ship "Just Read the Instructions".

Three Falcon 9 launches, three recoveries, in 36 hours!

Now up to 126 successful Falcon booster recoveries.

Online FutureSpaceTourist

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https://twitter.com/nasaspaceflight/status/1538395884081266688

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SES-2 is complete and that's an interesting setup on the front end of the Second Stage.

https://twitter.com/nasaspaceflight/status/1538407014749159425

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S/C Sep for Globalstar FM-15 (the other passenger is a mystery). Three successful missions in under two days.

Online FutureSpaceTourist

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https://twitter.com/johnkrausphotos/status/1538382364270813189

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Falcon 9 streaks to orbit at 12:27 a.m. EDT this morning with the Globalstar FM15 satellite

https://twitter.com/mdcainjr/status/1538387215465725952

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Just after midnight #SpaceX launches a spare #GlobalStar satellite towards orbit from launch complex 40!

📸 by me for @SpaceflightNow
« Last Edit: 06/19/2022 06:51 am by FutureSpaceTourist »

Offline Rondaz

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For comparison: 6 Globalstar-2 stacked on 2 layers on top of the Fregat upper stage at Baikonur, January 2013 (photo by I think
@Arianespace, via @nicolas_pillet)

https://twitter.com/Cosmic_Penguin/status/1538396650628317184

Offline Rondaz

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Updating / Update

Just 25 days after its last use, the B1061 booster successfully makes its ninth launch.

https://twitter.com/SpaceNosey/status/1538431298334867456
« Last Edit: 06/19/2022 11:03 am by Rondaz »

Offline su27k

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https://twitter.com/elonmusk/status/1538394661483687936

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Congrats to SpaceX Falcon team for executing 3 flawless launches in 2 days!

Note this is sent at around T+1:07:00, just after SES-2.

Offline LouScheffer

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Anyone want to explain what this "parking orbit" has to do with launching a Globalstar sat?  ::)
Looks like the mission profile could be:

1. Direct injection into a 533 x 533km orbit (1:34:51 period)
2. Release payload 'X'
3. SES2 to raise apogee to a 533 x 1200km (ΔV about 174 m/s)
4. SES3 to circularise at 1200 x 1200km (ΔV about 170 m/s)
5. Release Globalstar.
If the two orbits were the same inclination, then SES2 and SES3 would be equally long, but SES3 is twice the length.
The most straightforward explanation is the SES3 also includes an inclination change, in addition to circularizing. So the two orbits have slightly different inclinations.

EDIT:  SES3 was about twice as long as SES2, and should have provided twice the delta-V.  If we assume SES2 was in-plane, then SES3 provided about 340 m/s, where only 170 m/s of that was needed to circularize.  So the sideward delta-V was about sqrt(340^2-170^2), or about 290 m/s.  Orbital speed at that altitude is about 7256 m/s, so the change in inclination should be about atan(290/7256), or about 2.3 degrees.   According to Alexphysics the launch azimuth indicated a 54o orbit, whereas GlobalStar uses 52o.  So this is consistent with the mystery orbit being 533x533x54o.

This makes our best guess:
1. Direct injection into a 533 x 533km x 54o orbit (1:34:51 period)
2. Release payload 'X'
3. SES2 to raise apogee to a 533 x 1200km x 54o  (ΔV about 174 m/s)
4. SES3 to circularize/plane change at 1200 x 1200km x  52o (ΔV about 170 m/s for circularization, 290 m/s for plane change, 340 m/s total)
5. Release Globalstar.
6: SES4 for the second stage disposal burn.  At least 300 m/s to get to a 100 x 1200km or lower orbit.
« Last Edit: 06/19/2022 12:45 pm by LouScheffer »

Offline LouScheffer

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There was a 4th second stage burn for disposal, since a debris zone was specified in the Pacific.  This burn would be required, since a 1200 km circular orbit will take forever to decay naturally, much more than the 25 years that is the standard limit for space debris minimization
« Last Edit: 06/19/2022 12:40 pm by LouScheffer »

Offline Galactic Penguin SST

There was a 4th second stage burn for disposal, since a debris zone was specified in the Pacific.  This burn would be required, since a 1200 km circular orbit will take forever to decay naturally, much more than the 25 years that is the standard limit for space debris minimization

Looks like that burn, or related fuel dump, has been seen from New Zealand around 07:30 UTC: https://www.stuff.co.nz/national/300617139/whats-behind-the-bizarre-lights-seen-across-new-zealands-sky
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Offline LouScheffer

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There was a 4th second stage burn for disposal, since a debris zone was specified in the Pacific.  This burn would be required, since a 1200 km circular orbit will take forever to decay naturally, much more than the 25 years that is the standard limit for space debris minimization
Looks like that burn, or related fuel dump, has been seen from New Zealand around 07:30 UTC: https://www.stuff.co.nz/national/300617139/whats-behind-the-bizarre-lights-seen-across-new-zealands-sky
This would be the fuel dump, both by appearance and since the de-orbit burn would have happened on the other side of the Earth from the landing zone.  So the de-orbit burn was roughly over Europe, then the fuel dump on the way down over New Zealand, then disposal in the Pacific on a northwest trajectory.

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