Precise time recovery from transit satellites
Article first published online: 7 DEC 2012
Copyright 1979 by the American Geophysical Union.
Volume 14, Issue 4, pages 715–719, July-August 1979
How to Cite
1979), Precise time recovery from transit satellites, Radio Sci., 14(4), 715–719, doi:10.1029/RS014i004p00715., , and (
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Received: 8 FEB 1979
An instrument using time signals from the Navy Navigation Satellite System (Transit) to derive precise time referenced to the U.S. Naval Observatory (USNO) master clock is described. The two sources of system time error, receiver detection error and spacecraft timekeeping error, are analyzed. Performance data from production equipment tested at USNO are given. A cooperative program between USNO and the control agency to improve the spacecraft timekeeping is outlined. Phase One of this program is underway, and projected results are analyzed. System accuracy is forecast to be 3–5 μs rms when this program is completed.