Abstract
SVOM is an astronomical satellite used to observe a collection of Gamma Ray Burst and other targets. The general pointing attitude is inertial pointing in J2000 coordinate. As the telescope's exposure time will be 100s or even longer, the satellite platform should provide severe stability during the exposure period. This article describes the design of Attitude Control System (ACS) for SVOM satellite. First, ACS' key performance requirements are presented which include the extremely high stability target, 0.8 arcsec/100s along Ys and Zs axes. Second, ACS hardware selected and bus design are discribed. Then, the ACS modes and transfer logic are introduced. Next, the controller design and simulation results are given. At last, the conclusion is obtained and all the required index are fulfilled by current ACS design.
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