Attitude determination of spinning satellites in the presence of dynamic unbalance
Abstract
It is shown that the attitude of spinning satellites in the presence of dynamic unbalance can be determined using a semidifferential method for an unbalance amplitude that may amount to a few degrees. In principle this method is quite simple: the meridional part of the unbalance is taken into account in calculating the adjustments of the earth and sun sensor, while the transverse part of the unbalance is used to perform differential corrections on measurements that are affected by inclination variations of the sun-sensor slits. An important advantage of this method is that it can be conveniently implemented in an already existing attitude-determination environment.
- Publication:
-
Space Dynamics
- Pub Date:
- 1990
- Bibcode:
- 1990spdy.proc..317C
- Keywords:
-
- Astrodynamics;
- Satellite Attitude Control;
- Spin Stabilization;
- Apogee Boost Motors;
- Geosynchronous Orbits;
- Momentum Transfer;
- Synchronous Satellites;
- Transfer Orbits;
- Space Communications, Spacecraft Communications, Command and Tracking