This one is drifting slowly

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#585210
Nick James
Participant

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.