Decay update: 1998 Feb 26
Alan Pickup (alan@wingar.demon.co.uk)
Thu, 26 Feb 1998 20:50:41 +0000
One down, two to go.
The latest and probably final elset on the TRMM H-2 rocket is
TRMM H2 r2 13.5 2.5 0.0 4.2 v 160 x 120 km
1 25066U 97074D 98057.41370285 .99999999 11652-5 10000-2 0 1453
2 25066 34.9614 151.2494 0030671 150.6649 209.6641 16.49659137 14286
This suggests that it was 36 seconds late on the final "9143" SatEvo
prediction I posted a few hours before. I suspect it decayed on this
rev, possibly near the next northbound equator crossing near 176 degrees
W longitude at 11:22 UTC (February 26.47).
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OIG's latest elset for Cosmos 1043 is:
Cosmos 1043 5.0 1.5 0.0 5.4 v 179 x 174 km
1 11055U 78094A 98057.75846285 .04440200 -91869-6 57308-3 0 5484
2 11055 81.1324 66.4405 0003733 228.4493 131.6400 16.35853919 71009
This is 0.8 seconds early against the "9547" SatEvo evolution I posted
yesterday. I now predict decay for February 27.73 +-0.15d.
Prediction:
Cosmos 1043 5.0 1.5 0.0 5.4 v 176 x 172 km
1 11055U 78094A 98057.88074715 .04869161 16530-1 55956-3 0 95482
2 11055 81.1320 66.2698 0003491 227.9614 132.0088 16.36942911 71028
Cosmos 1043 5.0 1.5 0.0 5.4 v 171 x 167 km
1 11055U 78094A 98058.06403377 .06001026 25769-1 55368-3 0 95484
2 11055 81.1313 66.0133 0003094 227.2286 132.7453 16.38919668 71050
Cosmos 1043 5.0 1.5 0.0 5.4 v 164 x 160 km
1 11055U 78094A 98058.24707275 .07763546 40095-1 53355-3 0 95484
2 11055 81.1305 65.7564 0002638 226.4945 133.4836 16.41417960 71089
Cosmos 1043 5.0 1.5 0.0 5.4 v 155 x 152 km
1 11055U 78094A 98058.42979071 .11122240 95116-1 37180-3 0 95486
2 11055 81.1292 65.4989 0002086 225.7586 134.2243 16.44784453 71114
Cosmos 1043 5.0 1.5 0.0 5.4 v 139 x 138 km
1 11055U 78094A 98058.61203832 .22365104 47565+0 26506-3 0 95485
2 11055 81.1274 65.2404 0001322 225.0202 134.9690 16.50348075 71143
Cosmos 1043 5.0 1.5 0.0 5.4 v 130 x 129 km
1 11055U 78094A 98058.67261577 .37835097 15988+1 26277-3 0 95480
2 11055 81.1263 65.1539 0000939 224.7732 135.2192 16.53804574 71152
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The latest elset for the CZ-2C platform is:
Irid 42 CZ plat 10.0 3.0 0.0 3.0 d 202 x 154 km
1 25080U 97077D 98057.68742393 .05197157 -16039-5 42020-3 0 1764
2 25080 86.1792 77.8531 0036232 206.5740 153.3741 16.35491952 12665
This is all of 48 seconds late against yesterday's "9168" evolution.
It may decay at about February 27.33 +-0.1d.
Prediction:
Irid 42 CZ plat 10.0 3.0 0.0 3.0 d 189 x 149 km
1 25080U 97077D 98057.87078897 .09154806 58040-1 46551-3 0 91769
2 25080 86.1782 77.7423 0030471 205.7613 154.0866 16.38675297 12690
Irid 42 CZ plat 10.0 3.0 0.0 3.0 d 174 x 143 km
1 25080U 97077D 98058.05379512 .13933188 13531+0 39965-3 0 91766
2 25080 86.1768 77.6312 0023345 204.9463 154.9407 16.42779976 12724
Irid 42 CZ plat 10.0 3.0 0.0 3.0 d 147 x 130 km
1 25080U 97077D 98058.23620009 .35134357 10614+1 35822-3 0 91769
2 25080 86.1744 77.5195 0012758 204.1276 155.8126 16.50406805 12754
Irid 42 CZ plat 10.0 3.0 0.0 3.0 d 124 x 116 km
1 25080U 97077D 98058.29673867 1.11935504 11483+2 47212-3 0 91765
2 25080 86.1728 77.4820 0005985 203.8531 156.1191 16.57409887 12761
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/