decay watch: January 18

Alan Pickup (alan@wingar.demon.co.uk)
Mon, 18 Jan 1999 20:35:21 +0000

The following SpaceCom decay notices are current or have been issued and
superseded since my previous posting:

Object                            Notice issued    Predicted decay
                                       UTC              UTC

#25579 = Iridium 11A CZ-2C r      Jan 17 18:37     Jan 20 18:54 +-2d
#25579 = Iridium 11A CZ-2C r      Jan 18 18:41     Jan 20 17:05 +-1d

#25065 = ETS-7 H2 r               Jan 16 09:03     Jan 29 12:47 +-8d

               -------------------------------

Against the prediction I posted here yesterday, the Iridium 11A Long
March rocket was running 11 seconds early at 99018.737 (17:41 UTC
today). My new evolution leads to decay at January 20.79 (19:00 UTC
+-10h).

Predicted elsets:

Irid 11A CZ r   10.0  3.0  0.0  3.5 d            280 x 145 km
1 25579U 98074C   99019.04550023  .04059557  45612-2  28709-3 0 91123
2 25579  86.3441 182.2328 0102233  50.6570 310.2446 16.22647358  4813
Irid 11A CZ r   10.0  3.0  0.0  3.5 d            258 x 144 km
1 25579U 98074C   99019.53821883  .04829121  59904-2  28103-3 0 91121
2 25579  86.3425 181.9529 0086665  48.5072 312.2335 16.27010557  4894
Irid 11A CZ r   10.0  3.0  0.0  3.5 d            231 x 142 km
1 25579U 98074C   99020.02948335  .06471509  18953-1  28781-3 0 91124
2 25579  86.3405 181.6717 0067666  46.3491 314.2100 16.32391049  4974


Alan
-- 
 Alan Pickup | COSPAR 2707:   55d53m48.7s N   3d11m51.2s W   156m asl
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