Abstract Removing space debris is an urgent task to ensure sustainable space activity. Towards this end, we propose herein a tethered plate satellite that can remove many items of small space debris successively by collisions alone without capturing them or performing major orbital manoeuvres. The strategy involves a tethered plate that moves more slowly than the space debris at the same altitude so that the speed difference in the collision causes re-entry of the space debris. Numerical verification using an on-orbit object database indicates that, for the requisite number of collisions, this strategy would require a reasonable amount of orbital manoeuvres. The results indicate that six such spacecraft operating for one decade would suffice to reduce the amount of removable space debris in a certain altitude range by 96.10%. Based on these results, a mission concept is proposed in which debris-removal systems would remove almost all the removable space debris in a given altitude range, thereby allowing for the operation of large satellite constellations.

    Highlights A tethered plate satellite can remove space debris successively by low-speed collision. No capture or deceleration devices are required in the proposed strategy. As the tethered plate satellite is hardly damaged, it can remove a large amount of space debris. The feasibility is numerically investigated using on-orbit object database. It is revealed that most space debris in a specific altitude range can be removed.


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    Title :

    A tethered plate satellite as a sweeper of small space debris


    Contributors:

    Published in:

    Acta Astronautica ; 189 ; 429-436


    Publication date :

    2021-08-30


    Size :

    8 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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