Decay watch: 2002 September 9

From: Alan Pickup (alan@wingar.demon.co.uk)
Date: Mon Sep 09 2002 - 17:01:58 EDT

  • Next message: David Brierley: "Obs Sept7-8"

    I've just returned from a couple of days away at the Scottish Astronomy 
    Weekend to find that SpaceCom is posting decay notices for a GPS PAM-D 
    rocket. The following is taken from my updated Decay Watch page:
    _____________________________________________________________________
    Object: #22448 = 93-  7 C = GPS 2-18 (NavStar 30) PAM-D rocket
    
    Decay predictions:
    Source   Prediction made    Predicted decay at      Latitude Longitude
                    UTC                UTC                  deg      deg
    SpaceCom   Sep  8 07:39     Sep 10 06:59 +-1d        22.4 N   135.8 E
    SatEvo     Sep  9 20:45     Sep 11 06:49 +-13h       29.6 N   147.0 E
    
    Latest elset:
    GPS 2-18 r2      3.0  1.5  0.0  6.5 d  3.2       462 x 138 km
    1 22448U 93007C   02252.41520496  .07104018  40771-6  49864-3 0  4985
    2 22448  34.5687 197.6829 0242923 272.9529  84.2884 15.90868122237924
    
    SatEvo prediction: See Decay Watch page.
    (..ends}
    GPS 2-18 r2      3.0  1.5  0.0  6.5 d  3.2       188 x 115 km
    1 22448U 93007C   02254.21274428  .58738420  17250+1  47115-3 0 94988
    2 22448  34.5572 184.7406 0055656 291.7393  67.6692 16.45350867238216
    GPS 2-18 r2      3.0  1.5  0.0  6.5 d  3.2       137 x 102 km
    1 22448U 93007C   02254.27328505 2.17934447  29719+2  64969-3 0 94984
    2 22448  34.5556 184.2797 0026882 292.4085  67.3070 16.57427218238227
    
    Note: I have this decaying northbound to the SE of Japan on the last
    of my SatEvo-predicted orbits above, a day later than SpaceCom's latest
    estimate.
    _____________________________________________________________________
    
    
    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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