Decay watch: 2002 August 30

From: Alan Pickup (alan@wingar.demon.co.uk)
Date: Fri Aug 30 2002 - 13:44:51 EDT

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    The following notices are taken from my updated Decay Watch page:
    _____________________________________________________________________
    Object: #22851 = 92- 21 F = Telecom 2B Ariane 44L+ deb F
    
    Final analyses:
    Source   Prediction made    Predicted decay at      Latitude Longitude
                    UTC                UTC                  deg      deg
    SpaceCom   Aug 29 10:23     Aug 29 16:29 +-5h         3.1 N    79.5 W
    SatEvo     Aug 29 21:50     Aug 29 16:32 +-3h         2.6 N    92.8 W
    
    Final elsets:
    Ariane V44 rDb  11.4  2.6  0.0  4.0 v   47       836 x 120 km
    1 22851U 92021F   02240.72656595  .33855958 -29501-4  12384-2 0  6170
    2 22851   3.7624  97.6083 0522272 341.6541  17.7230 15.29284847110933
    Ariane V44 rDb  11.4  2.6  0.0  4.0 v   47       617 x 86 km
    1 22851U 92021F   02241.24229567  .73368871 -32129-4  46285-3 0  6189
    2 22851   3.7598  98.9463 0393882 344.4780  11.6039 15.72589451111015
    Ariane V44 rDb  11.4  2.6  0.0  4.0 v   47       675 x 14 km
    1 22851U 92021F   02241.30511008  .54462879  00000-0  00000-0 0  6193
    2 22851   3.9985  96.0765 0491361   7.0542 346.2539 15.74974368111020
    
    Note: The final elsets indicate perigee heights that are much too
    low. My estimate for an elset for the final equator crossing is:
    Ariane V44 rDb  11.4  2.6  0.0  4.0 v   47       288 x 111 km
    1 22851U 92021F   02241.68173097 1.54971554  56253+1  16345-2 0 96148
    2 22851   3.7371  89.9553 0134526 357.1051   2.8178 16.27552934111084
    I estimate that this decayed over the eastern Pacific, possibly
    between the Galapagos Is and southern Mexico. Given the poor elsets,
    the prediction is uncertain. SpaceCom's final notices have not appeared
    _____________________________________________________________________
    Object: #27435 = 02- 25 B = Ofeq 5 Shavit rocket
    
    Decay predictions:
    Source   Prediction made    Predicted decay at      Latitude Longitude
                    UTC                UTC                  deg      deg
    SpaceCom   Aug 30 14:02     Aug 31 14:26 +-15h       14.7 S    63.8 E
    SatEvo     Aug 30 17:30     Aug 31 13:29 +-7h         5.2 S    75.8 W
    
    Latest elset:
    Ofeq5 Shavit r   3.0  1.2  0.0  6.0 d    4       252 x 183 km
    1 27435U 02025B   02242.53285071  .05367376 -18606-4  17995-2 0  1663
    2 27435 143.4511  91.6626 0052068 187.6467 230.5655 16.20730508 14566
    
    SatEvo prediction: See Decay Watch page.
    (..ends)
    Ofeq5 Shavit r   3.0  1.2  0.0  6.0 d    4       173 x 144 km
    1 27435U 02025B   02243.44228507  .38418988  10671+1  11419-2 0 91660
    2 27435 143.4464  98.2136 0022199 196.7259 163.2006 16.42869482 14711
    Ofeq5 Shavit r   3.0  1.2  0.0  6.0 d    4       149 x 130 km
    1 27435U 02025B   02243.50294280 1.00445083  17510+2  97783-3 0 91663
    2 27435 143.4446  98.6613 0014181 197.3463 162.6052 16.49987463 14723
    
    Note: My current estimate is for this to decay while northbound over
    Peru near the end of the final predicted rev above.
    _____________________________________________________________________
    
    
    Alan
    -- 
    Alan Pickup / COSPAR 2707:  55.8968N   3.1989W   +208m   (WGS84 datum)
    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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