Decay watch: September 29
Alan Pickup (alan@wingar.demon.co.uk)
Wed, 29 Sep 1999 21:52:33 +0100
My Decay Watch page at
http://www.wingar.demon.co.uk/satevo/dkwatch/
has been updated with:
- My final note on the decay of #25920, the Ikonos Orbit Adjust Module.
I show this at September 28 19:39 UTC -15m+80m, while SpaceCom has it at
20:52 +-13m. The small uncertainty in SpaceCom's decay point implies
that there were further sightings of this, but no later elsets have
appeared. There was a northbound pass (in shadow) across Europe at
~20:30 UTC but I have no reports of it being seen - and I saw nothing
through cloud from Edinburgh. I show decay before this time, perhaps
southbound over the Pacific, and not long after perigee in this SatEvo-
predicted orbit:
Ikonos OrbAdjMod 173 x 111 km
1 25920U 99051B 99271.78427620 .81204933 36486+1 54526-3 0 90291
2 25920 97.6989 337.5422 0047503 184.5965 175.3597 16.49132839 633
As SpaceCom suggests, it may have survived well into the following
orbit.
- My predictions for the decays of the just-launched Resurs F-1M Soyuz
rocket (#25930) for September 30 02:53 UTC +-3h and of the Raduga 15
auxiliary motor (#15076) for October 4 20:49 UTC +-1.5d
Alan
--
Alan Pickup | COSPAR 2707: 55d53m48.7s N 3d11m51.2s W 156m asl
Edinburgh | Tel: +44 (0)131 477 9144 Fax: +44 (0)870 0520750
Scotland | SatEvo page: http://www.wingar.demon.co.uk/satevo/