Decay watch update: December 16
Alan Pickup (alan@wingar.demon.co.uk)
Wed, 16 Dec 1998 19:55:06 +0000
OIG have the current decay notices in effect:
Object Notice issued Predicted decay
UTC UTC
#22928 = Telstar 401 Centaur r Dec 16 06:59 Dec 17 06:11 +-14h
#25120 = Orbcomm 9 Pegasus r Dec 16 10:36 Dec 29 11:40 +-8d
#25499 = C 2350 aux motor Dec 16 17:30 Dec 18 16:28 +-1d
Current elsets for these:
Telstar 401 Centaur r 1014 x 114 km
1 22928U 93077B 98350.50250571 .42426311 -96406-5 12918-2 0 3596
2 22928 23.4910 7.1000 0647574 7.9417 165.5054 15.00992353 66334
Orbc9 Pegasus r 1.3 1.0 0.0 7.0 d 334 x 228 km
1 25120U 97084J 98350.53694451 .00660893 19771-3 99603-3 0 3859
2 25120 44.9519 333.0444 0080142 98.6944 262.2960 15.97664520 55282
C 2350 Prot deb (aux motor) 5308 x 98 km
1 25499U 98025E 98350.78974878 .39849072 16793-4 18108-2 0 1147
2 25499 47.2070 213.4267 2868274 77.2543 6.5040 10.03254024 5710
I now predict decay of #22928, the Centaur, at December 17.31
(07:28 UTC +-6h). SatEvo predicted elsets:
Telstar 401 Centaur r 829 x 114 km
1 22928U 93077B 98350.80011109 .56971227 17587+0 14966-2 0 93597
2 22928 23.4851 5.0161 0521935 11.5838 349.5725 15.31481434 66384
Telstar 401 Centaur r 626 x 114 km
1 22928U 93077B 98351.05794027 .82520055 56535+0 18138-2 0 93591
2 22928 23.4793 3.1252 0379133 14.8886 346.1978 15.66220367 66421
Telstar 401 Centaur r 393 x 114 km
1 22928U 93077B 98351.24673661 1.58608411 34222+1 25229-2 0 93598
2 22928 23.4729 1.6655 0210549 17.4401 343.2721 16.07560239 66455
Telstar 401 Centaur r 251 x 113 km
1 22928U 93077B 98351.30828673 3.37878207 27726+2 35215-2 0 93599
2 22928 23.4697 1.1657 0104496 18.3138 342.0596 16.33970299 66464
I show the Pegasus rocket, #25120, decaying on December 28 +-3 days and
#25499, the "aux motor", decaying at December 19.3 +-0.7 day.
Alan
--
Alan Pickup | COSPAR 2707: 55d53m48.7s N 3d11m51.2s W 156m asl
Edinburgh | Home: alan@wingar.demon.co.uk +44 (0)131 477 9144
Scotland | SatEvo page: http://www.wingar.demon.co.uk/satevo/