Decay watch: 2000 Feb 5

From: Alan Pickup (alan@wingar.demon.co.uk)
Date: Sat Feb 05 2000 - 10:25:48 PST

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    #22702 = 93- 42 C = GPS 2-21 r2 (PAM-D)
    
    OIG's elset and decay warning feed from SpaceCom appears to be stalled
    again, so no new elsets for this or any other object have appeared for
    more than 24 hours. The last to appear for this was:
    
    GPS 2-21 r2      3.0  1.5  0.0  6.5 d  3.4       459 x 133 km
    1 22702U 93042C   00035.60696759  .08941503  13505-6  46429-3 0  6992
    2 22702  34.5054 348.9590 0244160 247.6549 109.1183 15.92208120152537
    
    I now estimate the decay for Feb 6 06:20 UTC +-9h near 33.9 S, 29.8 E,
    but note the large uncertainty. This puts the decay just after it passes
    eastwards over South Africa, having passed over Cape Town at 06:18 UTC
    and Port Elizabeth a minute later. Predicted elsets for the last few
    revs...
    GPS 2-21 r2      3.0  1.5  0.0  6.5 d  3.4       245 x 120 km
    1 22702U 93042C   00037.03414718  .30743060  28785+0  43836-3 0 96994
    2 22702  34.4965 338.7001 0094947 262.5667  96.3536 16.33673788152760
    GPS 2-21 r2      3.0  1.5  0.0  6.5 d  3.4       225 x 119 km
    1 22702U 93042C   00037.09519804  .37766862  48921+0  44408-3 0 96994
    2 22702  34.4957 338.2444 0081118 263.2292  95.8471 16.37817339152774
    GPS 2-21 r2      3.0  1.5  0.0  6.5 d  3.4       199 x 116 km
    1 22702U 93042C   00037.15608131  .51613084  10744+1  45736-3 0 96994
    2 22702  34.4947 337.7869 0063912 263.8943  95.3770 16.43145497152783
    GPS 2-21 r2      3.0  1.5  0.0  6.5 d  3.4       162 x 109 km
    1 22702U 93042C   00037.21673322  .97313604  44400+1  47770-3 0 96996
    2 22702  34.4933 337.3270 0040852 264.5630  94.9708 16.51524860152790
    
    See http://www.wingar.demon.co.uk/satevo/dkwatch/ for more details.
    
    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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    This archive was generated by hypermail 2b29 : Sat Feb 05 2000 - 10:27:48 PST