Abstract: It is very important for the optical imaging camera of the geostationary remote sensing satellite to avoid sunlight during its operation in orbit. To overcome the overlarge initial angular velocity in most attitude maneuver algorithms, the optimized attitude maneuver algorithm was proposed for the rolling shaft, based on the design of avoid angle remain. The angle remain was designed at the beginning or end of sunlight avoidance.To establish the initial state of the maneuver the process changes from the moment of achieving the sunlight avoidance angle to the angle remain. This increases the time of establishing the initial state and decreases the initial angular velocity. The experiment results show that the optimized algorithm is simple and reliable, the initial angular velocity reduces from 0.2(°)/s to 0.014(°)/s, and the attitude is stable during sunlight avoidance.

Key words: Optical imaging camera, Sunlight avoidance, Attitude maneuver, Avoid angles remain, Remote sensing satellite