Navigation Schemes for LES-8/9 Autonomous Stationkeeping System.
MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB
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TEM.Technical note,Srivastava,Sushanta TN -1973-18F19628-73-C-0002AF-649LESDTR-73-85synchronous satellites, celestial guidance, scientific satellites, circular orbits, detectors, horizon scanners, yaw, drift, attitude control systems, celestial mechanicsles-9 satellite, les-8 satellite, stationkeeping, design specificationsThe autonomous stationkeeping system for LES-89 controls the mean longitude of the satellite by on board navigation. The longitude is computed from the observations of an infrared earth-horizon scanner, sun azimuth transit sensors and an earth-shadow sensor. The compensation for non-uniform sun motion for any near ecliptic satellite orbit is generated by an ephemeris synthesizer. The time reference is obtained from a stabilized oscillator. The report describes various considerations for the design of the navigation scheme. Author
- Space Navigation and Guidance
- Unmanned Spacecraft
- Spacecraft Trajectories and Reentry