Decay

Low Earth orbiting satellites experience orbital decay and have physical lifetimes determined almost entirely by their interaction with the atmosphere. The drag force that such a satellite experiences is due to its interaction with the few air molecules that are present at these altitudes. The density of the atmosphere at LEO heights is controlled by […]

Encounters

As a service to the satellite operator community, the Center for Space Standards & Innovation (CSSI) offers SOCRATES-Satellite Orbital Conjunction Reports Assessing Threatening Encounters in Space. This service provides regular information on pending conjunctions on orbit over the coming week. Twice each day, CSSI runs a list of all satellite payloads on orbit against a […]

BIRDS-1 Constellation TLE

1998-067MU 1 42820U 98067MU 17188.49472944 .00022637 00000-0 33880-3 0 9999 2 42820 51.6459 297.1078 0000191 112.5053 305.7240 15.54882633 39 1998-067MV 1 42821U 98067MV 17188.49472936 .00006293 00000-0 10000-3 0 9990 2 42821 51.6396 297.1033 0001708 338.7786 79.4174 15.54740082 11 1998-067MW ***** not a BIRD ***** 1 42822U 98067MW 17188.49484483 .99999999 00000-0 14670+1 0 9997 2 42822 […]

Columbia TLE candidate

At this stage NORAD #42702 seems to be the closest fit. LH, LJ and LK are still very close. COLUMBIA_42700 1 42700U 98067LH 17144.25608383 +.00012316 +00000-0 +18648-3 0 9998 2 42700 051.6407 157.5236 0005971 231.8122 237.8844 15.55067165001220 COLUMBIA_42702 1 42702U 98067LK 17144.25654758 +.00019987 +00000-0 +29711-3 0 9991 2 42702 051.6411 157.5326 0006758 230.5409 241.8592 15.55136213001131