Decay watch: 2000 Oct 21

From: Alan Pickup (alan@wingar.demon.co.uk)
Date: Sat Oct 21 2000 - 10:28:24 PDT

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    SpaceCom has posted the first decay notice for the Ofeq 3, the highly
    retrograde Israeli satellite, but has yet to post the final notice for
    Tubsat N1.
    _____________________________________________________________________
    Object: #23549 = 95- 18 A = Ofeq 3
    
    Decay predictions:
    Source   Prediction made    Predicted decay at      Latitude Longitude
                   UTC                UTC                  deg      deg
    SpaceCom   Oct 21 13:28     Oct 25 04:10 +-2d        30.1 S    58.6 W
    SatEvo     Oct 21 17:10     Oct 25 12:30 +-1d
    
    Latest elset:
    Ofeq 3           1.0  0.0  0.0  6.3 v  1.5       266 x 245 km
    1 23549U 95018A   00295.51016204  .01960832  28036-2  24496-2 0   810
    2 23549 143.2944 319.8426 0015663 288.7224 242.7695 16.06903949308811
    
    Note: This enters eclipse near 31 deg S at ~04:00 local time and leaves
    eclipse near 12 deg N at ~18:30 local time.
    _____________________________________________________________________
    Object: #25390 = 98- 42 B = Tubsat N1
    
    Decay predictions:
    Source   Prediction made    Predicted decay at      Latitude Longitude
                   UTC                UTC                  deg      deg
    SpaceCom   Oct 21 09:22     Oct 21 11:35 +-2h        65.2 N   141.6 E
    SatEvo     Oct 21 16:50     Oct 21 10:24 +-50m       20.6 S   172.3 W
    
    Final? elset:
    Tubsat N1        0.5  0.5  0.0  9.0 d 0.46       156 x 147 km
    1 25390U 98042B   00295.36701389  .21102354 -10596-6  54283-3 0  8401
    2 25390  78.8583 189.7025 0006651 234.5531 292.9496 16.45539080127061
    
    Note: The latest elset shows this running 8 sec late against my final 
    prediction. I have it decaying southbound over the Pacific to the NE 
    of New Zealand on the following (SatEvo-predicted) orbit:
    Tubsat N1        0.5  0.5  0.0  9.0 d 0.46       143 x 137 km
    1 25390U 98042B   00295.39952720  .70859457  62504+1  87320-3 0 98392
    2 25390  78.8423 189.6556 0004745  56.6245 303.4206 16.49828419127078
    _____________________________________________________________________
    
    
    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 21 2000 - 10:30:21 PDT