Decay watch: 2003 March 19

From: Alan Pickup (alan@wingar.demon.co.uk)
Date: Wed Mar 19 2003 - 03:23:28 EST

  • Next message: paul: "8305pg obs 20mar"

    My Decay Watch page now has the final notices for the latest two 
    decayers. In summary:
    _____________________________________________________________________
    Object: #27485 = 92- 41 F = Insat 2A Ariane 44L debris F
    
    Decay predictions:
    Source   Prediction made    Predicted decay at      Latitude Longitude
                    UTC                UTC                  deg      deg
    SCC        Mar 19 06:28     Mar 18 21:21 +-6h         7.2 N    78.8 E
    SatEvo     Mar 17 21:00     Mar 18 21:06 +-8h         5.8 N    49.3 E
    
    Final elset:
    Insat 2A Ariane 44L deb F                        1245 x 149 km
    1 27485U 92041F   03076.75570162  .34446590 -23649-4  12326-1 0  2218
    2 27485   7.2261 137.0423 0774791   9.9938 351.4759 14.58802286 16004
    
    Note: This seems to have been lost throughout its last day and SCC's
    final notice appeared only in the past hour or two. My previous
    prediction remains unchanged, with my estimate being that it decayed
    near Somalia soon after the end of the following predicted rev:
    Insat 2A Ariane 44L deb F                        394 x 126 km
    1 27485U 92041F   03077.80870003 2.06231782  68370+1  62481-2 0 92186
    2 27485   7.2183 129.0670 0202057  25.7571 335.2354 16.05279619 16162
    _____________________________________________________________________
    Object: #27645 = 03-  2 D = ICESat Delta rocket
    
    Decay predictions:
    Source   Prediction made    Predicted decay at      Latitude Longitude
                    UTC                UTC                  deg      deg
    SCC        Mar 18 13:36     Mar 18 12:54 +-32m       75.9 S    40.6 E
    SatEvo     Mar 18 21:40     Mar 18 12:38 -10+30m     29.7 S    70.4 E
    
    Final elset:
    ICESat Delta r   7.0  2.0  0.0  5.0 d   14       142 x 124 km
    1 27645U 03002D   03077.49122424  .42390130  27635-5  31375-3 0  1527
    2 27645  97.5062 259.7576 0013855 210.2126 150.0543 16.52516931 10178
    
    Note: The final elset shows this running 20 sec early against my
    final prediction. I estimate that this decayed southbound over the
    Indian Ocean on the orbit given by this elset.
    _____________________________________________________________________
    
    
    Alan
    -- 
    Alan Pickup / COSPAR 2707:  55.8968N   3.1989W   +208m   (WGS84 datum)
    Edinburgh  / SatEvo Home Page:   http://www.wingar.demon.co.uk/satevo/
    Scotland  / Decay Watch: http://www.wingar.demon.co.uk/satevo/dkwatch/
              *
    
    
    -----------------------------------------------------------------
    To unsubscribe from SeeSat-L, send a message with 'unsubscribe'
    in the SUBJECT to SeeSat-L-request@satobs.org
    List archived at http://www.satobs.org/seesat/seesatindex.html
    



    This archive was generated by hypermail 2b29 : Wed Mar 19 2003 - 03:26:52 EST