Determination of the motion of the pole, and comparison with astrometry

Details Determination of the motion of the pole, and comparison with astrometry Determination of the motion of the pole, and comparison with astrometry

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980rspta.294..329g&link_type=abstract

(Royal Society, Discussion on the Satellite Doppler Tracking and Its Geodetic Applications, London, England, Oct. 10, 11, 1978.)

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Applications

1

Astrometry, Doppler Radar, Polar Wandering (Geology), Radar Tracking, Satellite Tracking, Annual Variations, Geodetic Coordinates, Irregularities

Scientific paper

The paper presents a comparison of the classical astrometric method, that provides coordinates of the pole relative to the earth, with the Doppler method. The comparison with astrometry since 1972 shows that the random uncertainties of the Doppler system are currently half those of astrometry, while its systematic errors seem much smaller. Some irregularities of the motion of the pole were found both in Doppler and astrometric observations. Possible improvements of the Doppler determination of the pole are considered.

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