#12986 (SL-6 r2) decay

Alan Pickup (alan@wingar.demon.co.uk)
Tue, 20 May 1997 00:17:26 +0100

The most recent OIG elset for this object is:
SL-6 r2                                          4058 x 89 km
1 12986U 81113D   97139.84116575  .64508542  93014-5  15834-2 0  9120
2 12986  62.3536  99.0267 2347903 265.9999  67.1779 11.17338850117051

I have tried to fit a SatEvo evolution through elsets since 97135.90,
but with only limited agreement. As a result, the following prediction,
which leads to decay at about May 21.4, is rather uncertain:
SL-6 r2                                          3749 x 86 km
1 12986U 81113D   97140.01768161  .81199263  13095+0  15784-2 0 99128
2 12986  62.3365  98.6752 2207974 266.0291  68.6467 11.49029646117072
SL-6 r2                                          3474 x 86 km
1 12986U 81113D   97140.18993919  .88785353  16351+0  16361-2 0 99125
2 12986  62.3183  98.3160 2076374 266.0595  70.1204 11.78261706117091
SL-6 r2                                          3191 x 86 km
1 12986U 81113D   97140.35785603  .97523836  17956+0  16967-2 0 99123
2 12986  62.2989  97.9483 1936747 266.0911  71.6884 12.09542062117112
SL-6 r2                                          2902 x 86 km
1 12986U 81113D   97140.52136471 1.07644889  23893+0  17587-2 0 99125
2 12986  62.2781  97.5714 1788675 266.1240  73.3492 12.43013436117138
SL-6 r2                                          2603 x 86 km
1 12986U 81113D   97140.68039041 1.20893381  32317+0  18426-2 0 99129
2 12986  62.2606  97.1843 1629875 266.1584  75.1362 12.79244888117154
SL-6 r2                                          2290 x 86 km
1 12986U 81113D   97140.83480098 1.39200637  48181+0  19598-2 0 99121
2 12986  62.2387  96.7855 1456370 266.1944  77.0917 13.19224422117172
SL-6 r2                                          1952 x 86 km
1 12986U 81113D   97140.98437144 1.66646540  78823+0  21315-2 0 99124
2 12986  62.2168  96.3734 1261411 266.2322  79.2904 13.64635502117199

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    | Royal Observatory: A.Pickup@roe.ac.uk +44 (0)131 668 8224