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Research of multi-satellite synchronous orbit determination based on serial integration

Great resources of monitoring and control have been saved in orbit determination for satellite constellation based on satellite-to-satellite and earth-to-satellite tracking, the tracking would have broad application prospects in future constellation and rendezvous and docking of manned space vehicle. The key technologies in multi-satellite precision orbit determination with inter-satellite-link (ISL) are described in the paper. Inter-satellite-link measuring model is established, and precise orbit determination method for multi-satellites and its corresponding formula partial derivative are proposed in the article. The orbit determination software programming is simplified, and clears the multi-satellite and multi-arc orbit determination process, then applies to satellite constellation YaoGan-9. Through the actual task tracking, results show that the method can completely meet the multi-satellite orbit determination application requirement based on earth-to-satellite and satellite-to-satellite tracking.