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  • Space debris by the numbers

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    The latest figures related to space debris, provided by ESA's Space Debris Office at ESOC, Darmstadt, Germany.

     

    Information last updated on 27 March 2023


    Number of rocket launches since the start of the space age in 1957
        About 6380 (excluding failures)


    Number of satellites these rocket launches have placed into Earth orbit
        About 15430


    Number of these still in space
        About 10290


    Number of these still functioning
        About 7500


    Number of debris objects regularly tracked by Space Surveillance Networks and maintained in their catalogue
        About 33080


    Estimated number of break-ups, explosions, collisions, or anomalous events resulting in fragmentation
        More than 640


    Total mass of all space objects in Earth orbit

        More than 10800 tonnes


    Not all objects are tracked and catalogued. The number of debris objects estimated based on statistical models to be in orbit (MASTER-8, future population 2021)

        36500 space debris objects greater than 10 cm
        1000000 space debris objects from greater than 1 cm to 10 cm
        130 million space debris objects from greater than 1 mm to 1 cm

     

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