中国巴西地球资源卫星的轨道捕获和轨迹交会控制

中巴地球资源卫星一号(CBERS-1)是中国和巴西合作研制的第一颗运行在太阳同步轨道上的地球资源卫星.CBERS-1于1999年10月14日由中国自行研制的长征运载工具按预定计划准时发射,进入设计轨道,随后通过轨道捕获、星下点轨迹控制和多次轨道保持机动等一系列轨道测控操作,该卫星已按遥感用户的要求正常运行在高精度的太阳同步、回归冻结轨道上.本文简要阐明CBERS-1轨道控制系统的任务目标、系统结构、轨道控制策略、控制性能、飞行软件和在轨操作以及飞行结果.

Orbit Acquisition and Trajectory Rendezvous Control of CBERS-1

The CBERS -1 is the first sun-synchronous orbit earth resource satellite cooperatively developed by China and Brazil. CBERS -1 had been accurately launched into the designed orbit by the Chinese Long-March launch vehicle on schedule ever since 14 October 1999. 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, subsatellite-point trace acquisition and orbit maintenance maneuvers. The paper briefly presents the mission objectives, system structure, orbit control strategy, control performance, flight software and no-orbit operations for the orbit control system of the CBERS -1, as well as its flight results.