Abstract: In order to reduce the number of jet unloading of satellites in orbit, save propellant and prolong the service life of satellites, the angular momentum management of zero momentum satellites and V-wheel bias momentum satellites in geostationary orbit is researched. According to the characteristics of the satellite angular momentum evolution, the angular momentum management methods for two types of satellites are presented, and the optimized jet unloading strategy is proposed. Based on the above research, theoretical analysis and simulation verification of abnormal unloading of in orbit satellites are carried out, and solutions are proposed. In orbit experiments show that the optimized jet unloading strategy can significantly reduce the number of satellite unloading, which verifies the correctness of the strategy.

Key words: geostationary orbit, in orbit, angular momentum evolution, angular momentum unloading