The study of orbit determination for tracking and data relay satellite

摘要

The orbit determination for low-earth-orbit satellite (LEOS) can be achieved using Tracking and Data Relay Satellite (TDRS).The orbit determination accuracy could be raised by long continuous trackign arc to LEOS.Because the TDRS's location is in dynamic state,which is one of the chief error sources,we should exactly determine the orbit position for TDRS at first.