The Navstar/Global Positioning System (GPS) is considered. The issue of control segment accuracy in predicting space vehicle (SV) clock and ephemeris states for broadcast to the user community is addressed. Both the highly precise ephemeris and clock prediction data blocks and the less precise (but longer period of utility) almanac data block are evaluated.
Phase 1 Navstar/GPS ephemeris and space vehicle clock performance summary
1980-01-01
Conference paper
No indication
English