Orbit acquisition and trajectory rendezvous control of CBERS-1

The CBERS-1 is the first Sun-synchronous orbit resource satellite cooperatively developed by China and Brazil. The CBERS-1 had been successfully launched into the designed orbit by the Chinese Long-March launch vehicle. It has been normally operated in the high-accuracy Sun-synchronous, recursive, frozen orbit designed for remote-sensing users through a series of orbit acquisition, sub-satellite-point trace acquisition and orbit maintenance manoeuvres. The paper briefly presents the mission objectives, system structure, orbit control strategy, control performance, flight software and on-orbit operations for the orbit control system of the CBERS-1, as well as its flight results