Re: Decaying NEAR and Iridium rockets
Alan Pickup (alan@wingar.demon.co.uk)
Fri, 16 Jan 1998 21:10:11 +0000
The most recent elset from OIG for the decaying NEAR Delta 2 rocket...
NEAR r 5.4 2.9 0.0 5.5 d 350 x 136 km
1 23785U 96008B 98016.73345213 .09024453 -10590-4 45086-3 0 5247
2 23785 25.8851 119.7867 0161799 34.4560 326.8840 16.11486532 78261
...shows it running 29 seconds early against the "9519" satEvo evolution
I posted here yesterday.
My current calculations still show decay at about January 17.85 (~20:20
UTC +-4h). Predictions:
NEAR r 5.4 2.9 0.0 5.5 d 338 x 136 km
1 23785U 96008B 98016.85713557 .09721521 15961-1 46444-3 0 95241
2 23785 25.8847 118.8112 0152633 36.1079 324.9134 16.13783816 78284
NEAR r 5.4 2.9 0.0 5.5 d 317 x 135 km
1 23785U 96008B 98017.04238463 .10893891 25218-1 47811-3 0 95248
2 23785 25.8841 117.3439 0137769 38.5927 322.3841 16.17586768 78317
NEAR r 5.4 2.9 0.0 5.5 d 286 x 134 km
1 23785U 96008B 98017.28864311 .13312118 44068-1 49749-3 0 95248
2 23785 25.8831 115.3799 0115074 41.9187 318.9569 16.23495763 78357
NEAR r 5.4 2.9 0.0 5.5 d 247 x 133 km
1 23785U 96008B 98017.53388112 .17792020 72219-1 51064-3 0 95246
2 23785 25.8818 113.4055 0086762 45.2623 315.4408 16.31048934 78390
NEAR r 5.4 2.9 0.0 5.5 d 206 x 131 km
1 23785U 96008B 98017.71693369 .29765089 55160+0 59629-3 0 95246
2 23785 25.8806 111.9157 0057109 47.7852 312.6981 16.39065538 78423
NEAR r 5.4 2.9 0.0 5.5 d 185 x 129 km
1 23785U 96008B 98017.77770533 .45066469 13954+1 66288-3 0 95240
2 23785 25.8799 111.4166 0042947 48.6305 311.7381 16.43466743 78439
NEAR r 5.4 2.9 0.0 5.5 d 147 x 120 km
1 23785U 96008B 98017.83824479 1.41209878 19497+2 88266-3 0 95245
2 23785 25.8788 110.9151 0020679 49.4797 310.7002 16.52229797 78443
-------------------------------------
The Long March rocket was running 1.2 second late on my prediction at
the time of its latest elset:
Iridm CZ-2C r 10.0 3.0 0.0 3.0 d 302 x 157 km
1 25079U 97077C 98016.57744712 .01872439 -13114-5 36103-3 0 1071
2 25079 86.2769 100.7859 0109854 13.1065 347.3081 16.16317956 6171
My current prediction for re-entry remains January 20.7, now +-0.6day.
SatEvo evolution:
Iridm CZ-2C r 10.0 3.0 0.0 3.0 d 294 x 156 km
1 25079U 97077C 98017.01059111 .02007855 10814-2 35280-3 0 91070
2 25079 86.2763 100.5380 0103954 11.2385 348.9921 16.18020895 6244
Iridm CZ-2C r 10.0 3.0 0.0 3.0 d 283 x 156 km
1 25079U 97077C 98017.50506773 .02190393 13689-2 34302-3 0 91072
2 25079 86.2756 100.2543 0096779 9.1003 351.0741 16.20092724 6320
Iridm CZ-2C r 10.0 3.0 0.0 3.0 d 270 x 154 km
1 25079U 97077C 98018.06056244 .02441998 16653-2 32851-3 0 91078
2 25079 86.2746 99.9344 0088025 6.6903 353.4265 16.22661465 6411
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/