Spacecraft attitude determination using sun sensor, earth sensor

Details Spacecraft attitude determination using sun sensor, earth sensor Spacecraft attitude determination using sun sensor, earth sensor

1994-05-16

1996-09-17

Kashnikow, Andres

Aeronautics and astronautics

Spacecraft

With special crew accommodations

244164, 244165, B64G 124, B64G 136

Patent

active

055560580

ABSTRACT:
A method and system for determining the general three-axis attitude measurement for a spacecraft is disclosed. The system provides a cost-effective attitude measurement system for geosynchronous momentum bias spacecraft which need a continuously updated, moderately accurate, yaw measurement in addition to the usual roll and pitch measurements. The continuous yaw measurement enables control of the spacecraft yaw axis in the presence of disturbance torques. A sun sensor generates a signal which may be used to calibrate a continuously updated yaw measurement derived from the combination of signals generated by an Earth sensor and a space-to-ground link.

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