Decay watch: 2000 Oct 7, part 1

From: Alan Pickup (alan@wingar.demon.co.uk)
Date: Sat Oct 07 2000 - 11:48:57 PDT

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    My Decay Watch page has been updated with regard to today's two decayed
    objects - I'll update the others later.
    
    _____________________________________________________________________
    Object: #25129 = 97- 86 D = Asiasat 3 Proton r2
    
    Final decay analyses:
    Source   Prediction made    Predicted decay at      Latitude Longitude
                   UTC                UTC                  deg      deg
    SpaceCom   Oct  7 04:50     Oct  7 04:49 +-27m       50.7 S    55.5 W
    SatEvo     Oct  7 18:20     Oct  7 03:20 +-100m      47.9 S    13.3 W
    
    Final elset:
    Asiasat 3 r                                      898 x 81 km
    1 25129U 97086D   00281.02213318  .99999999  89365-5  11985-2 0   726
    2 25129  50.7896 117.2723 0595071 265.7672  87.7178 15.25500346 26930
    
    Note: The final elset shows this running 15 sec late against my
    final SatEvo prediction. A new evolution ends...
    Asiasat 3 r                                      737 x 77 km
    1 25129U 97086D   00281.08730827 2.58378585  36603+1  11087-2 0 90702
    2 25129  50.7727 116.9770 0486291 264.1044  90.3341 15.53283335 26940
    Asiasat 3 r                                      512 x 76 km
    1 25129U 97086D   00281.15120451 3.90854571  13595+2  12278-2 0 90706
    2 25129  50.7588 116.6424 0326751 264.3690  91.8965 15.93079641 26957
    It might have survived to decay near perigee on the final of these 
    orbits, at 04:45 UTC, as SpaceCom estimates. However, I judge that 
    decay was more likely on the previous rev over the South Atlantic as
    it headed to pass N of cape Town, South Africa, at 03:27 UTC.
    _____________________________________________________________________
    Object: #25547 = 98- 68 B = Bonum Delta 2 rocket
    
    Final decay analyses:
    Source   Prediction made    Predicted decay at      Latitude Longitude
                   UTC                UTC                  deg      deg
    SpaceCom   Oct  7 05:31     Oct  7 04:56 +-15m       11.6 N    71.6 W
    SatEvo     Oct  7 18:10     Oct  7 04:56 +-20m        3.9 N    55.7 W
    
    Final elset:
    Bonum Delta r    7.0  2.4  0.0  5.0 d   12       135 x 123 km
    1 25547U 98068B   00281.17692554  .85015219 -12408-4  47717-3 0  6610
    2 25547  25.7217 222.7675 0008984  45.7138 314.4163 16.54014512100032
    
    Note: I show this decaying near the southbound equator crossing on
    this orbit - this places it over Surinam in northern South America.
    _____________________________________________________________________
    
    
    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 : Sat Oct 07 2000 - 11:50:40 PDT