AbstractThis paper presents an interplanetary optical navigation algorithm based on two spherical celestial bodies. The remarkable characteristic of the method is that key navigation parameters can be estimated depending entirely on known sizes and ephemerides of two celestial bodies, especially positioning is realized through a single image and does not rely on traditional terrestrial radio tracking any more. Actual Earth–Moon group photos captured by China’s Chang’e-5T1 probe were used to verify the effectiveness of the algorithm. From 430,000km away from the Earth, the camera pointing accuracy reaches 0.01° (one sigma) and the inertial positioning error is less than 200km, respectively; meanwhile, the cost of the ground control and human resources are greatly reduced. The algorithm is flexible, easy to implement, and can provide reference to interplanetary autonomous navigation in the solar system.


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    Title :

    A novel interplanetary optical navigation algorithm based on Earth–Moon group photos by Chang’e-5T1 probe


    Contributors:
    Bu, Yanlong (author) / Zhang, Qiang (author) / Ding, Chibiao (author) / Tang, Geshi (author) / Wang, Hang (author) / Qiu, Rujin (author) / Liang, Libo (author) / Yin, Hejun (author)

    Published in:

    Advances in Space Research ; 59 , 3 ; 907-915


    Publication date :

    2016-07-04


    Size :

    9 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





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