Navigation Schemes for LES-8/9 Autonomous Stationkeeping System.

Abstract

TEM.Technical note,Srivastava,Sushanta ;TN -1973-18F19628-73-C-0002AF-649LESDTR-73-85(*synchronous 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-8/9 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)

Document Details

Document Type
Technical Report
Publication Date
Apr 20, 1973
Accession Number
AD0759806

Entities

People

  • Sushanta Srivastava

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Artificial Satellites
  • Attitude Control Systems
  • Celestial Guidance
  • Circular Orbits
  • Control Systems
  • Detectors
  • Geosynchronous Satellites
  • Guidance
  • Horizon Scanners
  • Navigation
  • Orbits
  • Satellite Orbits
  • Scientific Satellites
  • Stationkeeping

Readers

  • Positioning, Navigation, and Timing (PNT) Technology.
  • Robotics and Automation.
  • Space Exploration and Orbital Mechanics.

Technology Areas

  • Space
  • Space - Orbital Debris