On March 22, 2006, the Tracking and Data Relay Satellite TDRS-3 experienced an anomaly leading to a protracted period of loss of service. The anomaly included significant thrusting for more than 2 hours and minor thrusting for another 10 hours. This unexpected thrusting
caused significant changes to its orbit. Recovery was complicated by the quality and unavailability of the tracking data and difficulty in obtaining a good orbit determination (OD) solution.
We revisit this event and the subseq