Decay watch: May 25
Alan Pickup (alan@wingar.demon.co.uk)
Tue, 25 May 1999 20:47:05 +0100
SpaceCom has issued its first decay notice for the new Titan 4 rocket,
identifying its payload as "USA 144" for the first time.
---------------------------------------------------------------------
Object: #25745 = 99- 28 B = USA 144 Titan 4 r
Decay predictions:
Source Prediction made Predicted decay at Latitude Longitude
UTC UTC deg deg
SpaceCom May 24 21:58 Jun 2 11:36 +-5d 63.4 S 94.0 W
SatEvo May 25 12:00 Jun 3 +-3d
Latest elset (new ones are overdue):
USA 144 Titan 4 r 293 x 200 km
1 25745U 99028B 99144.99058024 .00785832 79431-5 55546-3 0 42
2 25745 63.3898 93.1775 0070162 170.4206 189.8324 16.10130841 112
Note: This is well placed at northern latitudes near the middle of the
night. It is also bright; I estimated it at magnitude zero last night
while Russell Eberst reports it as magnitude -0.4 on the same pass.
---------------------------------------------------------------------
Object: #25683 = 99- 19 E = Landsat 7 Delta r
Decay predictions:
Source Prediction made Predicted decay at Latitude Longitude
UTC UTC deg deg
SpaceCom (no prediction yet)
SatEvo May 25 19:30 June 1 00:00 +-1.2d
Latest elset:
Lndst7 Delta r 5.9 2.4 0.0 5.0 d 378 x 157 km
1 25683U 99020B 99145.55729062 .01924183 89463-5 48658-3 0 1166
2 25683 107.5672 265.6122 0166080 245.5998 112.7924 16.02442326 6227
Note: Another well placed object for European observers. It leaves
eclipse in the Earth's shadow near 50 deg N latitude around local
midnight while northbound. Eclipse entry occurs while southbound
near 72 deg S at around 08h local time.
---------------------------------------------------------------------
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/