Geocentric Coordinate Time

English

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Proper noun

Geocentric Coordinate Time

  1. [1983–] A coordinate time standard intended to be used as the independent variable of time for all calculations pertaining to precession, nutation, the Moon, and artificial satellites of the Earth, equivalent to the proper time experienced by a clock at rest in a coordinate frame co-moving with the center of the Earth.
    • 1983, Heinrich Karl Eichhorn, Robert Jay Leacock, editors, Astrometric Techniques: Proceedings of the 109th Symposium of the International Astronomical Union held in Gainesville, Florida, U.S.A., 9–12 January 1984, Reidel, published 1986, →ISBN, page 24, →ISBN:
      In some recent papers (for example: Ashby and Bertotti 1983, 1984) the satellite motion is treated in the local inertial geocentric reference frame with geocentric coordinate time being an independent argument.

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