Relativistic theory for picosecond time transfer in the vicinity of the Earth

Details Relativistic theory for picosecond time transfer in the vicinity of the Earth Relativistic theory for picosecond time transfer in the vicinity of the Earth

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...286..971p&link_type=abstract

Astronomy and Astrophysics 286, 971-977 (1994)

Astronomy and Astrophysics

Astrophysics

30

Relativity, Reference Systems, Time, Artificial Satellites

Scientific paper

The problem of light propagation is treated in a geocentric reference system with the goal of ensuring picosecond accuracy for time transfer techniques using electromagnetic signals in the vicinity of the Earth. We show that the first post-Newtonian approximation of the metric, as defined by the Resolution A4 of the International Astronomical Union, is sufficient for this purpose. We derive explicit formulae for a one way time transfer, to be applied when the spatial coordinates of the time transfer stations are known in a geocentric reference system rotating with the Earth. These expressions are extended, at the same accuracy level of one picosecond, to the special cases of two way and LASSO time transfers via geostationary satellites.

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