Accession Number:

AD0902178

Title:

TIMATION Navigation Satellite System Constellation Study

Descriptive Note:

Interim rept.

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s):

Report Date:

1972-06-27

Pagination or Media Count:

33.0

Abstract:

The Timation Time Navigation technique of passive ranging is a concept that could be expanded to provide a worldwide navigation service. Passive ranging is accomplished by measuring the time difference between electronic clocks located within the satellite and in the navigators receiver. The Timation technique uses a highly stable, synchronized clock in the satellite however, the navigators clock stability may vary considerably, depending on the navigators equipment and vehicle dynamics. One-hundred and seven satellite constellations are discussed in terms of their influence on earth coverage and navigation fix accuracy. The recommended configuration derived is comprised of three planes with nine satellites 3 x 9 each in 8-hour circular orbits at a 53 deg inclination. Author

Subject Categories:

  • Unmanned Spacecraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE