Decay watch: 2001 Jan 11

From: Alan Pickup (alan@wingar.demon.co.uk)
Date: Thu Jan 11 2001 - 13:10:52 PST

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    The Cosmos 1701 rocket is down and the Zeya rocket will follow in a few
    hours, possibly on a southbound pass over North America. the following
    summarises my Decay Watch page update - check the page for further
    details and predicted elsets where that are not given below...
    _____________________________________________________________________
    Object: #16110 = 85- 90 A = Cosmos 1689
    
    Decay predictions:
    Source   Prediction made    Predicted decay at      Latitude Longitude
                   UTC                UTC                  deg      deg
    SpaceCom   Jan 10 10:17     Jan 14 10:27 +-2d         2.5 S    72.3 E
    SatEvo     Jan 11 20:15     Jan 14 14:49 +-16h
    
    Latest elset:
    Cosmos 1689      6.0  1.4  0.0  5.2 v   19       219 x 212 km
    1 16110U 85090A   01011.70371428  .01874263  00000-0  88216-3 0  6059
    2 16110  97.5900 159.0842 0005812 313.5607  46.5788 16.21573580841099
    
    Note: Eclipse entry occurs northbound near 36 deg S at ~03:30 local
    time, with eclipse exit while southbound near 72 deg N at ~16:30. The
    latest elset shows this running 2 sec early against yesterday's
    prediction.
    _____________________________________________________________________
    Object: #16243 = 85-105 D = Cosmos 1701 rocket
    
    Decay predictions:
    Source   Prediction made    Predicted decay at      Latitude Longitude
                   UTC                UTC                  deg      deg
    SpaceCom   Jan 11 10:18     Jan 11 16:35 +-4h        44.8 N    19.9 W
    SatEvo     Jan 11 20:25     Jan 11 15:28 +-7h        38.6 S    49.6 E
    
    Latest (final?) elset:
    Cosmos 1701 r                                    348 x 94 km
    1 16243U 85105D   01011.60614418  .99999999  00000-0  95302-3 0   397
    2 16243  63.2810 189.4981 0192507 195.1410 164.4474 16.19631402   657
    
    Note: The latest elset shows it running 6.1 min early against
    yesterday's SatEvo prediction. I estimate that this decayed following
    perigee on the orbit given by the above elset. This puts is southbound
    over the SW Indian Ocean, to the S of Madagascar. SpaceCom's final two
    notices for this have not yet appeared.
    _____________________________________________________________________
    Object: #22659 = 93- 32 C = GPS 2-20 r2 (PAM-D)
    
    Decay predictions:
    Source   Prediction made    Predicted decay at      Latitude Longitude
                   UTC                UTC                  deg      deg
    SpaceCom   Jan 10 18:08     Jan 12 18:20 +-1d        31.6 M    43.7 E
    SatEvo     Jan 11 20:35     Jan 13 01:21 +-9h
    
    Latest elset:
    GPS 2-20 r2      3.0  1.5  0.0  6.5 d  2.9       450 x 134 km
    1 22659U 93032C   01011.44820593  .21591272  00000-0  11715-2 0  5676
    2 22659  34.6126  16.3736 0236959 325.8309  32.7848 15.93617928183159
    
    SatEvo prediction:
    ..(ends)
    GPS 2-20 r2      3.0  1.5  0.0  6.5 d  2.9       190 x 117 km
    1 22659U 93032C   01012.93412707  .48175199  79367+0  42846-3 0 95670
    2 22659  34.6016   5.6543 0055434 341.3753  18.4227 16.44627801183393
    GPS 2-20 r2      3.0  1.5  0.0  6.5 d  2.9       155 x 112 km
    1 22659U 93032C   01012.99470668  .87304850  44289+1  44464-3 0 95671
    2 22659  34.6003   5.1947 0033648 342.0419  17.8395 16.52212956183403
    
    Note: The latest elset shows this running 8 sec early against 
    yesterday's prediction. The latest elset from OIG, one of three for 
    that rev and already almost 10 hours old, appears to have a too-high 
    drag. 
    _____________________________________________________________________
    Object: #24745 = 97- 10 B = Zeya Start-1 rocket
    
    Decay predictions:
    Source   Prediction made    Predicted decay at      Latitude Longitude
                   UTC                UTC                  deg      deg
    SpaceCom   Jan 11 03:53     Jan 12 03:54 +-16h       32.2 N    53.0 W
    SatEvo     Jan 11 20:50     Jan 12 05:02 +-3h        75.2 N    76.7 E
    
    Latest elset:
    Zeya r           3.0  0.0  0.0  6.0 d  3.7       153 x 150 km
    1 24745U 97010B   01011.71187704  .05175304  00000-0  15073-3 0  9182
    2 24745  97.1571 291.4444 0001987 207.1487 153.0381 16.45451573217514
    
    SatEvo prediction:
    Zeya r           3.0  0.0  0.0  6.0 d  3.7       148 x 145 km
    1 24745U 97010B   01011.83340752  .07929569  57545-1  16088-3 0 99184
    2 24745  97.1565 291.5835 0001801 206.6338 153.3569 16.47296597217534
    Zeya r           3.0  0.0  0.0  6.0 d  3.7       145 x 143 km
    1 24745U 97010B   01011.89413803  .09145546  80083-1  15352-3 0 99181
    2 24745  97.1562 291.6531 0001690 206.3760 153.6153 16.48329505217547
    Zeya r           3.0  0.0  0.0  6.0 d  3.7       142 x 140 km
    1 24745U 97010B   01011.95482751  .10893425  11947+0  14805-3 0 99187
    2 24745  97.1558 291.7228 0001563 206.1180 153.8741 16.49538489217559
    Zeya r           3.0  0.0  0.0  6.0 d  3.7       138 x 136 km
    1 24745U 97010B   01012.01546807  .13675964  20037+0  14566-3 0 99181
    2 24745  97.1553 291.7926 0001411 205.8597 154.1332 16.51013636217565
    Zeya r           3.0  0.0  0.0  6.0 d  3.7       132 x 131 km
    1 24745U 97010B   01012.07604703  .18878412  41050+0  14909-3 0 99184
    2 24745  97.1546 291.8624 0001219 205.6011 154.3929 16.52947738217573
    Zeya r           3.0  0.0  0.0  6.0 d  3.7       125 x 123 km
    1 24745U 97010B   01012.13654013  .30802674  98108+0  16131-3 0 99186
    2 24745  97.1537 291.9324 0000946 205.3419 154.6534 16.55844546217588
    Zeya r           3.0  0.0  0.0  6.0 d  3.7       109 x 109 km
    1 24745U 97010B   01012.19689059 1.05060618  22147+2  27099-3 0 99184
    2 24745  97.1522 292.0026 0000552 205.0819 154.9154 16.61577425217595
    
    Note: The latest shows this running 14 sec late against yesterday's
    prediction. I show this decaying over the the far N of Russia on the
    orbit given by the final predicted elset above. If it survives a little
    longer, there is a southbound pass over north-eastern North America
    from Quebec, Canada, at 05:15 UTC to New York at 05:17. The uncertainty
    is such that there may be further passes over Canada and the USA
    on the next one or two orbits.
    _____________________________________________________________________
    
    
    Alan
    -- 
    Alan Pickup / COSPAR 2707:  55d53m48.7s N   3d11m51.2s W      156m asl
    Edinburgh  / SatEvo & elsets:    http://www.wingar.demon.co.uk/satevo/
    Scotland  / Decay Watch: http://www.wingar.demon.co.uk/satevo/dkwatch/
             *
    
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    This archive was generated by hypermail 2b29 : Thu Jan 11 2001 - 13:18:19 PST