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Location Evolution and Keeping of IGSO Cross Node

Zhu Mincai1,2 Hu Songjie2(1 Beijing University of Aeronautics and Astronautics,Beijing 100191)(2 Beijing Aerospace Control Center,Beijing 100094)   

  • Online:2009-02-25

Abstract: The shift of the cross node of IGSO is a significant reason of changing the service region of IGSO satellite and degrading the performance of system,so the node location keeping of IGSO satellite is required.The IGSO cross node location evolution and keeping were investigated.The formula and rule of cross point evolution acted by earth gravity perturbation,third-body perturbation and bias of working orbit,were given.The maintenance strategy of IGSO node location was described.