Abstract
Plans are presented for an experiment to measure the gravitational red shift of the Earth by comparing a ground-based and satellite-borne hydrogen maser clock. The limiting accuracy is estimated to yield a determination of the red shift to 1 part in 105, corresponding to a clock stability of 3 parts in 1015.
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This work was supported by the National Aeronautics and Space Administration.
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Kleppner, D., Vessot, R.F.C. & Ramsey, N.F. An orbiting clock experiment to determine the gravitational red shift. Astrophys Space Sci 6, 13–32 (1970). https://doi.org/10.1007/BF00653616
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DOI: https://doi.org/10.1007/BF00653616