Attitude and antenna steering system for geosynchronous...

Details Attitude and antenna steering system for geosynchronous... Attitude and antenna steering system for geosynchronous...

2008-04-15

2008-04-15

Collins, Timothy D. (Department: 3641)

Aeronautics and astronautics

Spacecraft

Attitude control

C342S355000, C342S368000, C701S013000

Reexamination Certificate

active

07357356

ABSTRACT:
A system for providing attitude and antenna steering for a spacecraft is disclosed. The spacecraft has a number of reaction wheels and a number of antennas. The system includes control logic configured to: determine a beta angle, the beta angle being the angle between a sun vector and an orbit plane of the spacecraft, and alternately engage either a first mode or a second mode to provide attitude and antenna steering based on the beta angle.

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