Decay watch: 2000 Mar 13

From: Alan Pickup (alan@wingar.demon.co.uk)
Date: Mon Mar 13 2000 - 13:05:21 PST

  • Next message: Harro.Zimmer: "Decay Alert Proton R/B"

    #26099 = 00- 13 B = Express 6-A Proton rocket
    
    Yesterday's Cosmos 2370 Proton r transformed into this object soon after
    my posting yesterday. The latest elset has this running 38 seconds late
    on yesterday's prediction. I now predict that this will decay at Mar 14
    01:19 UTC +-2h near a northbound equator crossing to the E of Nairobi,
    Kenya, on a track that takes it from S Namibia at 01:10 UTC to Somalia
    at 01:22. SpaceCom puts the reentry half an orbit later at Mar 14 02:06
    +-4h near 0.7 S, 151.5 W, close to the following southbound equator
    crossing over the Pacific. My predicted elset for the final rev:
    Express 6-A Proton r                             130 x 126 km
    1 26099U 00013B   00073.99450226  .39759396  19626+1  22585-3 0 90122
    2 26099  51.6330 231.1172 0002973 302.9929  56.9785 16.54367279   301
    
    
    #26100 = 00- 13 C = Express 6-A Proton platform
    
    The final elset ...
    Express 6-A Proton platform                      161 x 156 km
    1 26100U 00013C   00072.92019676  .19346153  12497-4  98098-3 0   102
    2 26100  51.6135 237.2170 0003407  68.4720  61.5848 16.42805570   128
    ...shows it running 2.0 sec early on the prediction I made yesterday.
    I place decay at Mar 13 01:14 +-40m near 7.4 S, 127.2 W, which is just
    beyond a southbound equator crossing over the E Pacific. This is about a
    half rev prior SpaceCom's decay point at Mar 13 02:00 +-2h at 2.6 S,
    34.6 E. My predicted elset for the final northbound crossing:
    Express 6-A Proton platform                      132 x 130 km
    1 26100U 00013C   00073.01962700 1.26980248  28423+2  87173-3 0 90100
    2 26100  51.6102 236.6491 0001685  68.8963 291.1217 16.53168793   144
    
    
    More details at http://www.wingar.demon.co.uk/satevo/dkwatch/
    
    
    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/
    
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