Author Topic: Collision risk Swarm B - Kosmos-375 DEB (closest approach 3611000 m)  (Read 1587 times)

Offline eeergo

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Potentially dangerous situation being assessed between one of the satellites in the Swarm constellation (Swarm-B) and a fragmentation debris piece of ~15 cm (radar cross-section 0.02 m2) from the Kosmos-375 ASAT interceptor 1970-091A.


http://blogs.esa.int/rocketscience/2017/01/24/esa-operations-teams-respond-to-debris-risk/


361 meters of miss distance, but 1000 m of along-track uncertainty...  :-\
-DaviD-

Offline Sam Ho

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Offline eeergo

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Commands for the DAM have been uploaded ~20 mins ago.


Burn scheduled for tonight at 22.03 UTC - will increase vertical miss distance to >50m (∆v=10 mm/s)
« Last Edit: 01/25/2017 07:24 AM by eeergo »
-DaviD-

Offline eeergo

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DAM cancelled - new analysis has shown the collision risk falling below 1/10000.


EDIT: Full update published (although the new estimated miss distance and uncertainty aren't explicitly quoted): http://blogs.esa.int/rocketscience/2017/01/25/debris-manoeuvre-abort/
« Last Edit: 01/25/2017 02:02 PM by eeergo »
-DaviD-

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