Re: Anomalous elements for 18313 (87 68B) and 25174 (98 10F)

Agapov Vladimir (avm@kiam1.rssi.ru)
Mon, 23 Feb 1998 13:21:50 +0300 (MSK)

Mike,

I assume those elsets are not result of computer's mistake. It seems
that SpaceCom guys linked the biggest part of fragmented (exploded?)
87068B rocket body to old international/catalog designations. It's
usual procedure when fragmentation occurs, but sometimes they changes
their first opinion reassigning ID/catalog numbers to another object
Here is TLEs for 7 objects assosiated with that event of possible explosion
(fragmentation due to collision?). I found only two objects - 12724 and
22509, which made close approaches to 87068B/18313 late on Feb 16.
But TLEs for those objects during following days looks stable and 
have not significant changes.
1 80159U 87068    98047.95405958  .00001006  00000-0  10000-3 0    10
2 80159  82.0656 226.4008 0371212 275.1598  80.7343 14.51120711    05
1 80159U 87068    98049.47098180  .00035572  00000-0  35633-2 0    28
2 80159  82.0618 224.9693 0372441 270.0949  85.7595 14.51207839   220
1 80159U 87068    98049.88467179  .00026616  00000-0  26666-2 0    37
2 80159  82.0629 224.5753 0372487 268.9171  86.8921 14.51216082   289
1 80160U 87068    98048.86235987  .00023645  00000-0  42431-2 0    11
2 80160  82.2169 226.0154 0295751 224.0097 133.4388 14.41961412    56
1 80160U 87068    98049.20936073  .00032863  00000-0  58771-2 0    21
2 80160  82.2127 225.6956 0296214 223.1619 134.5783 14.42001916   102
1 80160U 87068    98049.97264084  .00042303  00000-0  75643-2 0    39
2 80160  82.2121 224.9942 0295459 220.6537 137.2326 14.42080242   218
1 80160U 87068    98050.52771957  .00044302  00000-0  79032-2 0    42
2 80160  82.2108 224.4885 0295650 218.9509 139.0057 14.42138697   293
1 80161U 87068    98048.00054713  .31963440  00000-0  21635+2 0    16
2 80161  82.3743 227.3346 0052184 186.5584 173.3606 13.88925294    06
1 80161U 87068    98048.00054713  .00000137  00000-0  10000-3 0    24
2 80161  82.3743 227.3346 0052184 186.5584 173.3606 13.88925294    06
1 80162U 87068    98048.95827637  .00010470  00000-0  36631-2 0    19
2 80162  82.5062 226.8009 0210794 267.9223  89.7785 14.23382933    61
1 80162U 87068    98049.94242615  .00005403  00000-0  18886-2 0    29
2 80162  82.5046 225.9585 0210850 264.9297  92.7762 14.23387113   203
1 80163U 87068    98048.94337288 -.00259677  00000-0 -20697+0 0    15
2 80163  82.5476 227.0645 0049536 314.3697  44.8365 13.92416025   146
1 80163U 87068    98048.94347368 -.00218876  00000-0 -17330+0 0    22
2 80163  82.5390 227.0783 0051000 323.0144  36.6123 13.92458834   142
1 80163U 87068    98050.30906361 -.00225924  00000-0 -18096+0 0    32
2 80163  82.5242 226.0036 0052817 293.2681  66.5646 13.91806834   338
1 80164U 87068    98048.72715444  .00002233  00000-0  20019-2 0    19
2 80164  82.5590 227.2530 0010276 327.1952  32.8580 13.83828542    06
1 80164U 87068    98049.23327645  .00011097  00000-0  99884-2 0    23
2 80164  82.5588 226.8517 0010265 324.7094  35.3358 13.83845315    76
1 80164U 87068    98049.59479517  .00003545  00000-0  31852-2 0    39
2 80164  82.5574 226.5645 0010247 322.7733  37.2697 13.83839153   124
1 80165U 87068    98048.87392527  .00094034  00000-0  85972-1 0    17
2 80165  82.4870 226.9425 0019306 131.2260 229.0457 13.82321596    26
1 80165U 87068    98049.23584118  .00010652  00000-0  98339-2 0    24
2 80165  82.4866 226.6531 0019360 135.9868 224.2836 13.82302915    78

Bets regards,
   Vladimir Agapov.