From my updated Decay Watch page...
_____________________________________________________________________
Object: #26606 = 00- 71 B = GPS 47 Delta 2 rocket
Final decay analyses:
Source Prediction made Predicted decay at Latitude Longitude
UTC UTC deg deg
SpaceCom Feb 8 20:56 Feb 8 19:12 +-7m 37.0 S 149.0 E
SatEvo Feb 9 17:50 Feb 8 18:55 +-1h 15.6 S 67.8 E
Final elsets:
GPS 47 Delta r 7.0 2.0 0.0 5.5 d 15 212 x 121 km
1 26606U 00071B 01039.63225463 .14401474 00000-0 17852-3 0 1894
2 26606 37.5173 290.4097 0069026 162.5795 197.7969 16.39795973 13547
GPS 47 Delta r 7.0 2.0 0.0 5.5 d 15 198 x 136 km
1 26606U 00071B 01039.63225688 .14784469 37195-5 36380-3 0 1911
2 26606 37.5075 290.4258 0047410 174.7115 185.4191 16.39580550 13545
GPS 47 Delta r 7.0 2.0 0.0 5.5 d 15 190 x 92 km
1 26606U 00071B 01039.75357097 .29084828 00000-0 96601-4 0 1904
2 26606 37.5033 289.5053 0074888 158.4208 202.0356 16.49416004 13566
Note: It has been difficult, indeed impossible, to reconcile the
various final elset issued for this object. For example, the final two
show the perigee dropping by 44 km while the apogee fell only 8 km -
somewhat the wrong way around. In the end, I have all but ignored the
final elset in my analysis, deriving the following elset instead
which has an equator crossing time 5 sec later than that published by
SpaceCom:
GPS 47 Delta r 7.0 2.0 0.0 5.5 d 15 157 x 121 km
1 26606U 00071B 01039.75360976 .57461099 21987+1 43130-3 0 91818
2 26606 37.5166 289.5474 0027073 181.7216 178.2690 16.50199063 13562
I put the decay southbound over the Indian Ocean, but with a large
uncertainty given that poor quality of the published data. In fact,
Tony Beresford has forwarded an observation of what appears to be the
re-entry of this rocket seen from south-eastern South Australia at
19:15 UTC. This time may be 3-4 minutes too late, but the location
is very much in accordance with SpaceCom's estimated decay point.
_____________________________________________________________________
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 : Fri Feb 09 2001 - 10:13:13 PST