Abstract During the north–south control of the BeiDou GEO satellites, due to the influences of some factors, such as the gyro drift, attitude control and orbital plane change, the semi-major axis is changed, which causes the ground longitude of satellite to drift. It is hard to accurately estimate the effect of north–south control on the semi-major axis in practice. According to the north–south control characteristics of the GEO satellites, the reasons of various factors affecting the semi-major axis has been analyzed. The model of various influencing factors on the semi-major axis is established by stripping the factors. The accuracy of the model is verified by using the data of the previous north–south control of GEO satellites in orbit. And the magnitude of each influencing factor is given. The results show that the estimated error of the model is less than 1 km. The model can be used to compensate the semi-major axis in the north–south control of the BeiDou GEO satellites.


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    Title :

    The Analysis of the Semi-major Axis Changed by the North–South Control of the Beidou GEO Satellites


    Contributors:
    Li, Quanjun (author) / Xue, Rui (author) / Kong, Dalin (author)


    Publication date :

    2017-07-27


    Size :

    10 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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