Satellite attitude control
Abstract
Satellite attitude control systems are divided into two categories - passive and active control systems. The various elements which contribute to each type of system are discussed. For the passive control system they are: (1) spin stabilization; (2) magnetic attitude control - magnetic field of the Earth, magnetic attitude stabilization, magnetic bias control, and spin axis orientation control; (3) gravity gradient stabilization - gravity gradient torques, basic dynamic equations for a rigid body, gravity gradient stabilization (two cases: circular and elliptical orbits), and physical considerations; (4) other passive stabilization techniques - aerodynamic torque, and solar radiation pressure. For the active control systems they are: (1) reaction wheel systems, mass expulsion systems, and gyrotorquers. A brief description of the attitude control system for the satellite for earth observation (SEO) due to be launched by the end of 1978 is given.
- Publication:
-
In Indian Inst. of Sci. Space Sci
- Pub Date:
- April 1978
- Bibcode:
- 1978InSST.........G
- Keywords:
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- Attitude Control;
- Attitude Stability;
- Control;
- Gyroscopic Stability;
- Satellite Attitude Control;
- Analysis (Mathematics);
- Elliptical Orbits;
- Magnetic Fields;
- Spacecraft Control;
- Spacecraft Stability;
- Spin Stabilization;
- Torquers;
- Launch Vehicles and Space Vehicles