A model of the attitude dynamics of the Galileo spacecraft has been developed for purposes of simulating various spacecraft attitudes controlled maneuvers. Because of complex mission requirements, the Galileo spacecraft structure includes components whose flexibility is important to the spacecraft attitude behavior and which must be considered in the development of a stable attitude control system. The model formulation is based on an efficient procedure for deriving equations of motion, and the resulting equations of motion form the basis for a flexible body dynamics simulation which can provide controls analysts with a means of testing various control algorithms.
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