Attitude and orbit command
Abstract
Active satellite stabilization is discussed for two types of attitude and orbit control systems: spin stabilization, and three axes stabilization. The METEOSAT, TELECOM 1, and SPOT satellite systems are cited as illustrations. Gyroscopic (spin) stabilization is described mathematically, accounting for the evolution of attitude and nutation. The METEOSAT nutation dampers, pencil type IR attitude sensors, as well as the respective command and active control systems are depicted. Attitude measurement for three axes stabilization is elaborated, covering both optical and inertial sensors. Application to attitude command is summarized and three axes stabilization systems which either make use of onboard kinetic moment (TELECOM 1) or do not (SPOT) are modeled by equations of attitude. A synoptic overview of the SPOT attitude command system is shown.
- Publication:
-
Space Vehicle Orbital Motion
- Pub Date:
- 1980
- Bibcode:
- 1980svom.nasa..289D
- Keywords:
-
- Command Guidance;
- Orbital Mechanics;
- Satellite Attitude Control;
- Spacecraft Stability;
- Spin Stabilization;
- Three Axis Stabilization;
- Attitude Stability;
- Control Moment Gyroscopes;
- Euler Equations Of Motion;
- French Satellites;
- Kinematic Equations;
- Momentum Transfer;
- Nutation Dampers;
- Astrodynamics