Abstract In terms of cataloged debris produced, the anti-satellite test carried out by Russia, in November 2021, at an altitude of about 480 km, leading to the destruction of the old satellite Cosmos 1408, was the second worst to date and represented the third worst fragmentation in orbit. It generated more than 1/4 of the cataloged debris produced over 55 years by all such tests and almost twice as many as were produced by all previous Soviet tests. After placing this event in its historical context, this paper analyzes in detail how the evolution of the Cosmos 1408 debris cloud affected the environment below 600 km in the first seven months, focusing on the two operational space stations and the Starlink large constellation of satellites. During the first six months following the test, the Cosmos 1408 cloud of fragments nearly doubled the average flux of cataloged objects on the International Space Station and increased by about 3/4 that on China's Tiangong. In the same period, the Starlink large constellation saw an average increase in the flux of cataloged objects of about 20%. Some orbital planes, the “counter-rotating” ones with respect to the Cosmos 1408 debris cloud, were more affected than others, and the affected planes gradually changed over time, due to the differential precession of cloud and constellation nodes. However, being the Starlink constellation 70 km higher up, the flux of Cosmos 1408 cataloged debris steadily decreased over the period analyzed, due to the cloud orbital decay, reducing to just over a quarter of its extrapolated initial value after seven months.

    Highlights A review of ASAT tests as a source of orbital debris was presented. The impact of the Cosmos 1408 destruction was put into context. The cataloged debris flux increase on space stations was computed and discussed. The debris flux increase and evolution on Starlink orbit planes was analyzed. A moratorium on this type of ASAT tests was recommended, including low LEO.


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    Titel :

    The short-term effects of the Cosmos 1408 fragmentation on neighboring inhabited space stations and large constellations


    Beteiligte:

    Erschienen in:

    Acta Astronautica ; 210 ; 465-473


    Erscheinungsdatum :

    2023-02-28


    Format / Umfang :

    9 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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