Abstract：To analyze the orbit determination performance of different solar radiation pressure models under different attitude control modes of Beidou satellite, we analyze the applicability of ECOM 5 parameter model, Box-Wing+ECOM 5 parameter model and extended ECOM model for Beidou IGSO and MEO satellites orbit determination from the aspects of internal and external orbit accuracy. The results show that with the satellite in non-earth eclipse segment, BDS-2 satellite using ECOM 5 parameters has the best internal and external accuracy, while the orbit accuracy of BDS-3 MEO satellite using Box-Wing+ECOM 5 parameters and extended ECOM 5 parameters is slightly better than ECOM 5 parameters; the difference of internal accuracy is less than 1 cm. When the satellite is in the earth eclipse segment, the extended ECOM has the best applicability for BDS-2 and BDS-3 MEO satellites. Compared with other solar radiation pressure models, the accuracy of along and cross internal accuracy is improved by about 20% and 70%. For BDS-3 IGSO satellite, the orbit accuracy is much lower than other Beidou satellites due to the small number of observations, but on the whole, ECOM 5 parameter model performs slightly better.
ZHAO Hui,JIN Shuanggen,LUO Peng. Applicability of Different Solar Radiation Pressure Models for Beidou IGSO and MEO Satellites Orbit Determination[J]. jgg, 2022, 42(1): 9-14.
