Abstract Chang’E-4 will be the first to achieve a soft landing on the far-side of the moon. The tracking and data transmission for Chang’E-4 will depend on a relay satellite on a Lissajous orbit around the Earth–Moon L2 point, and the four-way ranging measurement is expected to be obtained. The capability of orbit determination for Chang’E-4 is studied by simulation. The results show that the relay satellite can realize a near full time tracking for lunar probe. In terms of the orbit determination capability, the orbital accuracy of relay satellite is an important constraint. Once the tracking arc reaches 5 h, the orbit solution for lunar probe tends to be stable. However, the orbital accuracy is still one order of magnitude lower than that of relay satellite. For inter-satellite tracking, the stability of the satellite clock is another constraint. With 1 h auxiliary ground station tracking every day, an orbital accuracy of 100 m can be achieved.


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    Title :

    A Simulation Study of Orbit Determination for Lunar Probe via Relay Satellite


    Contributors:
    Cao, Jianfeng (author) / Liu, Lei (author) / Liu, Ye (author) / Su, Weigang (author) / Hu, Songjie (author)


    Publication date :

    2017-07-27


    Size :

    9 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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