A laser ranging instrument is being developed to measure the spatial variations in the Earth's gravity field. It will range in space to a cube corner on a passive co-orbiting sub-satellite with a velocity accuracy of 20 to 50 microns/sec by using AlGaAs lasers intensity modulated at 2 GHz.


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    Semiconductor laser-based ranging instrument for earth gravity measurements

    Abshire, James B. / Millar, Pamela S. / Sun, Xiaoli | NTRS | 1995


    Laser Ranging Interferometer Instrument Status

    Francis, Samuel P | NTRS | 2020



    Earth rotation from lunar laser ranging

    Langley, R. B. / King, R. W. / Shapiro, I. I. | NTRS | 1981


    Track control instrument using laser for ranging

    Europäisches Patentamt | 2015

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