Decay watch: 2000 Mar 25

From: Alan Pickup (alan@wingar.demon.co.uk)
Date: Sat Mar 25 2000 - 06:53:32 PST

  • Next message: Dale Ireland: "Re: Why de-orbit the iridium constellation?"

    #20919 = 90- 93 B = Inmarsat 2-1 Delta 2 rocket
    
    I predict that this will decay over Melanesia in the E Pacific
    near 5.0 S, 168.3 E, at Mar 26 03:24 +-4h. SpaceCom has updated its
    prediction to a decay at Mar 26 00:30 +-10h near 8.4 S, 153.7 W.
    
    The latest elset for this is:
    Inmarsat 2-1 r   5.9  2.4  0.0  5.0 v   14       204 x 181 km
    1 20919U 90093B   00085.36875000  .05381427 -13421-4  10393-2 0  6108
    2 20919  24.7169  60.5364 0017041 143.2330 318.0493 16.30074939512407
    
    I have predicted elsets on my Decay watch page at
           http://www.wingar.demon.co.uk/satevo/dkwatch/
    leading to the following final orbit:
    Inmarsat 2-1 r   5.9  2.4  0.0  5.0 v   14       150 x 142 km
    1 20919U 90093B   00086.08325262  .45035240  24194+1  81661-3 0 96101
    2 20919  24.7142  54.6532 0006583 153.3554 206.6784 16.47511418512522
    
    That orbit takes it N of Guadalajara, Mexico, at 02:15 UTC and just S of
    Miami, Florida, at 02:20. It crosses Africa from Libreville, Gabon, at
    02:43 to N Mozambique at 02:52, and later crosses Australia from (NW)
    Western Australia at 03:10 to Cairns, Queensland, at 03:17. My predicted
    decay point is a little further along.
    
    Alan
    -- 
     Alan Pickup | COSPAR 2707:  55d53m48.7s N  3d11m51.2s W   156m asl
     Edinburgh   | Tel: +44 (0)131 477 9144     Fax: +44 (0)870 0520750
     Scotland    | SatEvo page:   http://www.wingar.demon.co.uk/satevo/
    
    -----------------------------------------------------------------
    Unsubscribe from SeeSat-L by sending a message with 'unsubscribe'
    in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org
    http://www2.satellite.eu.org/seesat/seesatindex.html
    



    This archive was generated by hypermail 2b29 : Sat Mar 25 2000 - 06:55:50 PST