› Forums › General Discussion › Busy skies › This one is drifting slowly
6 February 2022 at 8:45 am
#585210
Nick James
Spectator
This one is drifting slowly in alt/az downwards and to the right. It is NORAD 21893 (Superbird B1) which was launched in 1992 and which is long defunct. It is in a highly inclined (14 deg) graveyard orbit. Uncontrolled GEOs are perturbed by lunar and solar gravity and their inclination drifts away from 0 deg.