Cerise / #18208 (?) collision
Bjoern Gimle (b_gimle@algonet.se)
Thu, 22 Aug 1996 19:52:54 +0200 (MET DST)
Closest approaches to 23606 Cerise by 18208 Ariane debris, July 24, 1996,
according to elsets below and COLA program (confirmed by TrakStar).
The date is confirmed (?) by checking the intersection of elsets for days
96206.29 and 96221.30. (Thanks, Mike!) (#18208 has decreased its Mean Motion) :
7/24/1996 6:11:09.3 18208 Ariane 96221.305 12.6 -15.05
7/24/1996 7:50:57.8 18208 Ariane 96221.305 2.1 -14.98
7/24/1996 8:51:14.4 18208 Ariane 96221.305 4.0 -14.94
7/24/1996 10:04:05.7 18208 Ariane 96221.305 5.7 -14.89
7/24/1996 11:43:03.3 18208 Ariane 96221.305 17.4 -14.82
km. 18208 elset age
7/24/1996 6:31:38.1 18208 Ariane/Cerise 96207.165 1.9 -0.03
7/24/1996 8:09:50.2 18208 Ariane/Cerise 96207.165 1.6 +0.04
7/24/1996 9:48:02.2 18208 Ariane/Cerise 96207.165 1.5 +0.11
7/24/1996 11:26:14.3 18208 Ariane/Cerise 96207.165 1.3 +0.18
7/24/1996 13:04:26.4 18208 Ariane/Cerise 96207.165 1.4 +0.25
7/24/1996 14:42:38.4 18208 Ariane/Cerise 96207.165 1.3 +0.31
Cerise elset age
7/24/1996 8:09:50.2 23606 Cerise 96207.165 1.6 -0.83
7/24/1996 9:48:02.3 23606 Cerise 96207.165 1.4 -0.76
7/24/1996 11:26:14.3 23606 Cerise 96207.165 1.4 -0.69
7/24/1996 13:04:26.4 23606 Cerise 96207.165 1.2 -0.62
7/24/1996 14:42:38.4 23606 Cerise 96207.165 1.4 -0.55
7/24/1996 8:09:50.2 23606 Cerise 96205.392 1.7 +0.95
7/24/1996 9:48:02.3 23606 Cerise 96205.392 1.5 +1.02
7/24/1996 11:26:14.3 23606 Cerise 96205.392 1.5 +1.08
7/24/1996 13:04:26.4 23606 Cerise 96205.392 1.3 +1.15
7/24/1996 14:42:38.5 23606 Cerise 96205.392 1.5 +1.22
7/24/1996 16:20:50.5 23606 Cerise 96205.392 1.5 +1.29
The collision was almost head-on, at a relative speed of 15 km/sec.
Although these elsets show a 1 km cross-track separation, values have
changed very little with epochs 96190-96225, so I don't expect any of
the other objects (at >8 km range) to be closer than this.
Also, this one did suffer a considerable change in elset mean motion!
Ariane/Cerise 96207.165
1 18208U 86019RF 96206.29886473 .00001324 00000-0 24382-3 0 5520
2 18208 98.4528 335.7257 0014588 114.3987 245.8740 14.67247931509376
Ariane 96221.305
1 18208U 86019RF 96221.30560747 +.00001275 +00000-0 +23714-3 0 05727
2 18208 098.4622 351.2184 0014567 082.7015 277.5846 14.66895566511576
Cerise 96207.165
1 23606U 96207.16580144 .00000078 22486-4 0 1959
2 23606 98.1027 143.5052 0008987 62.8166 297.3954 14.67264644 56281
Cerise 96205.392
1 23606U 96205.39273562 .00000083 23247-4 0 2127
2 23606 98.1025 141.7519 0008991 67.4104 292.8048 14.67264268 56023
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