Objects from new Glonass launch

Alan Pickup (alan@wingar.demon.co.uk)
Thu, 31 Dec 1998 15:35:19 +0000

The launch of three Glonass satellites, Cosmos 2362/3/4, produced the
following objects:

Cosmos 2362 (Glonass)                            19137 x 19117 km
1 25593U 98077A   98365.25380964 -.00000031  00000-0  00000-0 0    78
2 25593  64.8224  52.9473 0003860 208.0724 151.9692  2.13163976    03
Cosmos 2363 (Glonass)                            19128 x 19086 km
1 25594U 98077B   98365.25336974 -.00000031  00000-0  00000-0 0    59
2 25594  64.8146  52.9565 0008212 287.7313  72.2505  2.13406939    00
Cosmos 2364 (Glonass)                            19130 x 19127 km
1 25595U 98077C   98365.25388558 -.00000031  00000-0  00000-0 0    44
2 25595  64.8001  52.9735 0000428 218.2458 141.8075  2.13141730    00
C 2362 Proton r                                  131 x 124 km
1 25596U 98077D   98365.19452748  .23057933  79549-5  13157-3 0    69
2 25596  64.8425  51.5294 0005561 234.2886 125.7523 16.54572394    72
C 2362 Proton plat                               475 x 156 km
1 25597U 98077E   98365.27486524  .06807817  67926-5  18205-2 0    67
2 25597  64.8372  51.4184 0238868  87.1187 273.7663 15.85319481    87
C 2362 Blok-DM r                                 19129 x 19086 km
1 25598U 98077F   98365.24378113 -.00000031  00000-0  00000-0 0    31
2 25598  64.8053  52.9606 0008505 288.1474  64.4700  2.13404810    01
C 2362 Proton deb                                462 x 155 km
1 25599U 98077G   98365.46429092  .06741918  68287-5  17023-2 0    19
2 25599  64.8395  50.7375 0229101  87.2424 275.4934 15.87837466    50

SpaceCom issued these decay notices for the Proton and the platform,
both of which have already decayed:

Object                            Notice issued    Predicted decay
                                       UTC              UTC
     
#25596 = Cosmos 2362 Proton r     Dec 31 01:40     Dec 31 05:29 +-3h
#25596 = Cosmos 2362 Proton r     Dec 31 03:53     Dec 31 06:14 +-2h
#25596 = Cosmos 2362 Proton r     Dec 31 08:22     Dec 31 06:09 +-37m

#25597 = C 2362 Proton platform   Dec 31 07:53     Jan  2 10:23 +-1d
#25597 = C 2362 Proton platform   Dec 31 11:33     Dec 31 06:46 +-2h


My own satEvo calculations of the decay times for these are 05:50 UTC 
and 08:42 UTC respectively. I show the platform lasting for another
orbit beyond SpaceCom's decay, though the elsets for this appear to be
confused with that for another object. The one elset (so for) for the G
debris object has a drag term which appears too low, and this may have
already decayed also.

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/