Polar motion determined by Doppler satellite observations

Details Polar motion determined by Doppler satellite observations Polar motion determined by Doppler satellite observations

Dec 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976bgeod..50..377a&link_type=abstract

Bulletin Geodesique, vol. 50, no. 4, 1976, p. 377-390.

Statistics

Computation

1

Doppler Effect, Geodetic Surveys, Magnetic Poles, Polar Wandering (Geology), Position (Location), Satellite Observation, Computer Techniques, Graphs (Charts), Gravitational Fields, Navigation Satellites, Orbit Calculation, Position Errors, Standard Deviation

Scientific paper

Doppler observations of Navy Navigation Satellites have been used to compute pole positions on a daily basis since 1969. Limited computations have been performed using data on file for the period 1964-1969. Results of recent computations give a standard error in pole position based on 48 hours of Doppler observations of 7 cm. However, effects of errors in the orbit due to uncertainties in the gravity field prevent the attainment of this precision; the standard deviation of pole position for this time span is 60 cm, giving a standard error for a five day mean based on observations of two satellites of 25 cm.

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