Aeronautics and astronautics – Spacecraft – Spacecraft formation – orbit – or interplanetary path
Patent
1998-03-16
2000-10-24
Poon, Peter M.
Aeronautics and astronautics
Spacecraft
Spacecraft formation, orbit, or interplanetary path
B64G 100
Patent
active
061353892
ABSTRACT:
A method for steering the payload beam of a satellite in a non-geostationary orbit toward an intended service area having known geographical dimensions in order to obtain improved pointing performance with a corresponding reduction in the demand on onboard hardware and software systems. The method comprises the steps of determining a subterranean target point and a direction fixed in the payload beam, calculating the orientation that points the payload beam direction through the subterranean target point, and maintaining this payload beam orientation using an on-board attitude control system.
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Dinh Tien
Gudmestad T.
Hughes Electronics Corporation
Poon Peter M.
Sales M.
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