Attitude and antenna steering system for geosynchronous...

Aeronautics and astronautics – Spacecraft – Attitude control

Reexamination Certificate

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C342S355000, C342S368000, C701S013000

Reexamination Certificate

active

11066383

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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“Phased array.” Wikipedia, The Free Encyclopedia. Jan. 19, 2007, 16:17 UTC. Wikimedia Foundation, Inc. Jan. 22, 2007 <http://en.wikipedia.org/w/index.php?title=Phased—array&oldid=101805431>.
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