Spin reorientation maneuver for spinning spacecraft

Details Spin reorientation maneuver for spinning spacecraft Spin reorientation maneuver for spinning spacecraft

1992-07-14

1993-10-26

Focarino, Margaret A.

Aeronautics and astronautics

Spacecraft

Attitude control

244169, 244171, B64G 124

Patent

active

052558789

ABSTRACT:
A method for controlling reorientation of a spacecraft's spin from a minor axis spin bias to a desired major axis spin after spin transition. A control system monitors rotational rates about the principal axes to detect a separatrix crossing of a polhode path therein. Controlled thruster firings resulting from spin rate information successively decrease and increase a characteristic parameter and capture the spacecraft during a spin transition to a desired major bias orientation. It is possible to monitor only .omega..sub.1 and .omega..sub.3 in an alternate embodiment.

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