MSTI-3 orbit change and decay prediction
Alan Pickup (alan@wingar.demon.co.uk)
Sun, 7 Dec 1997 19:46:47 +0000
The orbit of MSTI-3 was changed on December 2, between the epochs of
these elsets:
MSTI-3 428 x 416 km
1 23868U 96031A 97336.09313099 .00008415 00000-0 16133-3 0 2525
2 23868 97.1122 163.4724 0009401 29.9589 330.2186 15.48205076 87190
MSTI-3 416 x 226 km
1 23868U 96031A 97336.47474606 .00132246 77774-5 27748-3 0 2373
2 23868 97.0896 163.8474 0142327 29.6928 331.2344 15.83364721 87258
The effect is to lower the perigee and, unless the orbit is changed
again, to bring its decay forward from 1999-2000 to about 1998 January
24 by my calculation. Incidentally, no less than eight different elsets
were issued for a single equator crossing later on the day of the orbit
change (epoch 97336.98) - is this a record?
SeeSaters will recall that this was the target for tests of the US
Army's Mid-Infra-Red Advanced Chemical Laser during October.
The latest elset for this object is:
MSTI-3 408 x 225 km
1 23868U 96031A 97340.26473253 .00225913 19379-4 45105-3 0 2526
2 23868 97.0870 167.7693 0137294 14.9475 345.5846 15.84994971 87855
Alan
--
Alan Pickup | COSPAR site 2707: 55d53m48.7s N 3d11m51.2s W 156m asl
Edinburgh | Home: alan@wingar.demon.co.uk +44 (0)131 477 9144
Scotland | SatEvo satellite page: http://www.wingar.demon.co.uk/satevo/