The increase in the number of satellites and space debris in low Earth orbit (LEO) makes tracking these objects and avoiding collisions a major endeavor. A particularly important issue is the determination of the altitude of these objects, which in many cases is not known with a precision better than 1 km. Here we present the idea of using simultaneous observations by 2 optical telescopes, separated by a few hundred km, to refine the altitude measurement of these objects to a precision of 10 m. We discuss the requirements for such a system, like aperture, timing precision, and the precision to which one needs to know the positions of the telescopes and background stars.


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    Title :

    Precise altitude measurements of LEO objects with simultaneous observations by multiple telescopes



    Conference:

    Sensors and Systems for Space Applications V ; 2012 ; Baltimore,Maryland,United States


    Published in:

    Publication date :

    2012-05-07





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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