Decay watch: 2000 Sep 18

From: Alan Pickup (alan@wingar.demon.co.uk)
Date: Mon Sep 18 2000 - 13:51:17 PDT

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    Geomagnetic conditions have been at storm force for much of the past
    day.
    
    My Decay Watch page has been updated yet again...
    _____________________________________________________________________
    
    Object: #14693 = 84- 11 E = Palapa B2 r (PAM-D)
    
    Decay predictions:
       SpaceCom: Sep 22 01:50 +-2d        27.8 N   156.7 W
       SatEvo:   Sep 21 19:56 +-20h
    
    Latest elset:
    Palapa B2 r                                      198 x 161 km
    1 14693U 84011E   00262.47291509  .00752722 -82463-5  78490-4 0  8191
    2 14693  28.1209 159.8970 0028716 173.8356 186.2611 16.34910413912653
    _____________________________________________________________________
    
    Object: #25995 = 99- 68 B = Terra Centaur rocket
    
    Decay predictions:
       SpaceCom: Sep 20 22:34 +-2d        37.3 S   141.3 W
       SatEvo:   Sep 20 21:39 +-22h
    
    Latest elsets:
    Terra Cent r     9.0  0.0  0.0  4.5 d   20       256 x 212 km
    1 25995U 99068B   00262.56245836  .02896116  28709-5  20327-2 0  3973
    2 25995  98.2115  19.2783 0033359 221.7652 138.1107 16.14862780 42455
    Terra Cent r     9.0  0.0  0.0  4.5 d   20       255 x 210 km
    1 25995U 99068B   00262.68636767  .00977820  28953-5  66644-3 0  3988
    2 25995  98.2130  19.4306 0033769 221.2536 138.5937 16.15237092 42476
    
    The latest elset shows this running 6 sec early against yesterday's
    prediction but has an ndot2 drag term (0.00977..) that is too low.
    _____________________________________________________________________
    
    Object: #26491 = 88- 81 F = GStar 3 Ariane 3 deb
    
    Decay analyses:
       SpaceCom: Sep 17 22:25 +-4h         4.8 S   172.6 W
       SatEvo:   Sep 17 22:31 +-2h         0.5 S   138.5 W
    
    Final elset:
    GStar 3 Ariane 3 deb F                           402 x 149 km
    1 26491U 88081F   00261.63015261  .34149118 -32263-4  60085-2 0   354
    2 26491   7.4238 202.6073 0189830 322.9909  35.8755 15.99537101 50134
    
    I show this decaying over the E Pacific close to the northbound equator
    crossing given by the SatEvo-predicted elset...
    GStar 3 Ariane 3 deb F                           175 x 121 km
    1 26491U 88081F   00261.93878531 3.64959460  50000+2  34163-2 0 90373
    2 26491   7.4203 199.9258 0041597 328.6411  31.1116 16.46692201 50188
    _____________________________________________________________________
    
    
    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 : Mon Sep 18 2000 - 13:52:54 PDT