Abstract:Launched on March 30,2016,the IGSO-6 satellite of the Beidou navigation system has new attitude control modes compared to in-orbit operation ofother IGSO satellites of the Beidou navigation system. In particular, during the earth’s eclipse, it keeps yaw-steering mode. In this paper, multiple observation data are used to analyze the orbit accuracy of the IGSO-6 satellite.The experimental results show that: during the earth’s eclipse, the IGSO-3 satellite overlap accuracy reach 0.31 m for average and 0.67 m for the largest, while the IGSO-6 satellite gets 0.18 m for average and 0.28 m for the largest; during the changing of control mode, SLR validation reaches 0.2 m for the IGSO-3 satellite and less than 0.1 m for the IGSO-6 satellite. Compared to the IGSO-3 satellite, which experiences the earth’s eclipse at about the same time period, the IGSO-6 satellite with new attitude control mode can effectively avoid the decrease in precision of orbit determination.
LIU Yuxi,JIA Xiaolin,RUAN Rengui. Beidou IGSO Satellite Orbit Determination Precision Analysis Based on New Attitude Control Mode[J]. jgg, 2017, 37(6): 614-617.