Decay watch: 2003 March 10

From: Alan Pickup (alan@wingar.demon.co.uk)
Date: Mon Mar 10 2003 - 15:11:03 EST

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    Updates from my Decay Watch page:
    _____________________________________________________________________
    Object: #24838 = 97- 30 C = Iridium 9
    
    Decay predictions:
    Source   Prediction made    Predicted decay at      Latitude Longitude
                    UTC                UTC                  deg      deg
    SCC        Mar 10 16:03     Mar 11 03:11 +-7h        20.5 N   101.8 E
    SatEvo     Mar 10 19:55     Mar 11 01:38 +-3h        18.9 N   123.7 E
    
    Latest elset:
    Iridium 9 tum    4.0  1.8  0.0  6.5 d   10       183 x 180 km
    1 24838U 97030C   03069.69902227  .10584293 -13009-5  16331-2 0  3170
    2 24838  86.4184 315.4697 0001874 224.9539 135.1578 16.34218915307962
    
    SatEvo prediction:
    Iridium 9 tum    4.0  1.8  0.0  6.5 d   10       173 x 171 km
    1 24838U 97030C   03069.82135178  .16191187  17899+0  17425-2 0 93178
    2 24838  86.4173 315.4005 0001818 224.4112 135.5742 16.37638489307987
    Iridium 9 tum    4.0  1.8  0.0  6.5 d   10       167 x 165 km
    1 24838U 97030C   03069.88242186  .20398896  31162+0  17093-2 0 93173
    2 24838  86.4165 315.3659 0001790 224.1392 135.8465 16.39849496307998
    Iridium 9 tum    4.0  1.8  0.0  6.5 d   10       160 x 157 km
    1 24838U 97030C   03069.94339812  .28698534  67657+0  15399-2 0 93178
    2 24838  86.4156 315.3311 0001632 223.8667 136.1203 16.42776468308008
    Iridium 9 tum    4.0  1.8  0.0  6.5 d   10       147 x 145 km
    1 24838U 97030C   03070.00424005  .53752906  28010+1  10761-2 0 93177
    2 24838  86.4141 315.2962 0001353 223.5933 136.3960 16.47426378308016
    
    Note: I have this decaying following the end of the final predicted
    orbit above. This puts it northbound over the Philippines after a
    passage over Western Australia at 123 deg E.
    _____________________________________________________________________
    Object: #25236 = 98- 12 D = SNOE Pegasus debris D
    
    Decay predictions:
    Source   Prediction made    Predicted decay at      Latitude Longitude
                    UTC                UTC                  deg      deg
    SCC        Mar 10 00:17     Mar  9 23:17 +-1h        42.5 S    42.9 E
    SatEvo     Mar 10 19:45     Mar  9 22:26 +-45m       27.1 N   122.3 W
    
    Final elset:
    SNOE Pegasus deb D                               142 x 130 km
    1 25236U 98012D   03068.86958901  .21997257  29812-5  20667-3 0  6159
    2 25236  97.6230  25.2015 0008495 167.7805 192.3674 16.51294917279502
    
    Note: I estimate that this decayed following the end of the orbit
    given by the final elset. This places it northbound over the eastern
    Pacific on a track that would carry it to the W of San Francisco
    at 22:28 UTC and W or Portland, OR, at 22:31.
    _____________________________________________________________________
    
    
    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/
              *
    
    
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