Spacecraft spin axis capture system and method

Details Spacecraft spin axis capture system and method Spacecraft spin axis capture system and method

1992-07-30

1994-05-03

Huppert, Michael S.

Aeronautics and astronautics

Spacecraft

Attitude control

244177, B64G 138

Patent

active

053080254

ABSTRACT:
A control system and method for causing a spacecraft (10) initially spinning about a principal axis of inertia (H) to transition to spin about an arbitrary command axis (3) is presented in which the capture maneuver is performed in a way to preserve spacecraft attitude knowledge without sensor or attitude propagation by using a simple rate feedback loop. The capture is accomplished by applying a step torque about axes (1) and (2) transverse to the desired spin axis (3) creating an initial nutation. The nutation is subsequently damped actively by closing a rate feedback loop with a low pass filter and applying transverse torques proportional to the transverse nutational rate.

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patent: 4960250 (1990-10-01), Schmidt
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patent: 5067673 (1991-11-01), Fong

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