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2nd Stage failure during Starlink 9-3 (www.spacex.com)

submitted 4 months ago* (last edited 4 months ago) by ptfrd@sh.itjust.works to c/spacex@sh.itjust.works

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During tonight’s Falcon 9 launch of Starlink from Space Launch Complex 4 East at Vandenberg Space Force Base in California, the second stage engine did not complete its second burn. As a result, the Starlink satellites were deployed into a lower than intended orbit. SpaceX has made contact with five of the satellites so far and is attempting to have them raise orbit using their ion thrusters.

There's also a tweet saying the same thing in fewer words.

This is the affected mission: Starlink 9-3 launch bulletin

Let's hope it was due to SpaceX pushing the envelope on their in-house Starlink missions in some way, though I have no specific guesses along those lines. Perhaps a manufacturing defect or an operational mistake are more likely to be the leading candidates for the cause.

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[–] ptfrd@sh.itjust.works 10 points 4 months ago* (last edited 4 months ago) (4 children)

A tweet from Musk

Upper stage restart to raise perigee resulted in an engine RUD for reasons currently unknown. Team is reviewing data tonight to understand root cause.

Starlink satellites were deployed, but the perigee may be too low for them to raise orbit. Will know more in a few hours.

[–] ptfrd@sh.itjust.works 7 points 4 months ago (1 children)

I wonder if they considered sacrificing one of the contactable satellites, trying to send it back towards the 2nd stage in the hope of getting some useful camera views, or anything like that.

[–] burble@lemmy.dbzer0.com 7 points 4 months ago (1 children)

That would be a crazy flex if they pulled it off, compared to entire companies focusing on RPO like Astroscale with their current demo mission and True Anomaly with their failed attempted RPO mission.

That being said, I doubt that any Starlink engineering cameras would be good enough to give them better views than the 2nd stage's onboard cameras, and Starlink prop systems don't look like they have enough thrusters or control authority for that kind of thing.

[–] ptfrd@sh.itjust.works 4 points 4 months ago

True. And I guess the likelihood of there being much left to look at, let alone any actually useful visible clues, is not high. (Bearing in mind the RUD seems to have been destructive enough to have incapacitated 75% of the satellites.)

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