A summary of today's Decay Watch page update...
_____________________________________________________________________
Object: #23954 = 96- 41 B = GPS 2-26 r1
Final decay analyses:
Source Prediction made Predicted decay at Latitude Longitude
UTC UTC deg deg
SpaceCom Oct 9 08:20 Oct 8 23:43 +-2h 20.8 S 148.4 W
SatEvo Oct 9 17:50 Oct 8 23:17 +-50m 28.5 N 135.2 E
Final elset:
GPS 2-26 r1 5.9 2.4 0.0 5.0 v 13 146 x 145 km
1 23954U 96041B 00282.85416667 .15183561 16997-5 29171-3 0 9178
2 23954 35.2246 13.0144 0000980 259.1576 253.7847 16.47617327236766
Note: The final elset shows this 3 sec early against yesterday's
prediction. This could have dropped almost anywhere around its orbit
but my estimates nominal decay time places it southbound over the
W Pacific to the S of Japan. SpaceCom's decay point puts it further
along on the same southbound pass over the Pacific. My predicted
elset for the final rev:
GPS 2-26 r1 5.9 2.4 0.0 5.0 v 13 121 x 120 km
1 23954U 96041B 00282.94932856 .86655279 12719+2 32684-3 0 99175
2 23954 35.2224 12.2939 0000815 260.1881 99.8026 16.57027224236785
_____________________________________________________________________
Object: #25234 = 98- 12 B = Teledesic 1
Final decay analyses:
Source Prediction made Predicted decay at Latitude Longitude
UTC UTC deg deg
SpaceCom Oct 9 06:41 Oct 9 03:10 +-1m 79.0 S 177.8 W
SatEvo Oct 9 18:50 Oct 9 03:58 +-30m 42.9 N 47.1 W
Final elset:
Teledesic 1 2.0 0.0 0.0 7.0 d 2.7 148 x 134 km
1 25234U 98012B 00283.14233616 .20541947 28129-5 24641-3 0 9725
2 25234 97.6268 203.3072 0010908 126.2190 233.9839 16.49480417145058
Note: The final elset, with epoch at 03:25 UTC, is at odds with
SpaceCom's estimate for decay at 03:10 with an uncertainty of only
1 minute. I suspect that the elset underestimates the drag and,
probably, the mean motion at that time. Decay certainly occurred
on that rev, possibly southbound over the NW Atlantic.
_____________________________________________________________________
Object: #26539 = 00- 56 B = Cosmos 2372 Zenit rocket
Decay predictions:
Source Prediction made Predicted decay at Latitude Longitude
UTC UTC deg deg
SpaceCom Oct 7 10:49 Oct 9 11:28 +-1d 8.0 S 135.5 E
SatEvo Oct 9 19:45 Oct 12 05:14 +-15h
Latest elset:
C 2372 Zenit r 223 x 175 km
1 26539U 00056B 00283.57520795 .01956966 75198-5 44352-3 0 538
2 26539 64.7787 140.6844 0036716 60.1217 300.3299 16.27574058 2286
Note: The latest elset shows this 1.3 sec early against yesterday's
prediction. We are already beyond SpaceCom's predicted decay time
but I show it with some two days yet to go.
_____________________________________________________________________
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/
-----------------------------------------------------------------
Unsubscribe from SeeSat-L by sending a message with 'unsubscribe'
in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org
http://www2.satellite.eu.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Mon Oct 09 2000 - 13:00:36 PDT