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Combination of data from different space geodetic systems for the determination of Earth rotation parameters

Published online by Cambridge University Press:  03 August 2017

Brent A. Archinal*
Affiliation:
Department of Geodetic Science and Surveying, The Ohio State University, Columbus, Ohio 43210-1247, U.S.A.

Abstract

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Simulation experiments have been performed in order to compare the Earth Rotation Parameter (ERP) results obtained from a) individual observational systems, b) the weighted mean of the results from a), and c) all of the observational data, via the combination of the normal equations obtained in a). These experiments included the use of 15 days of simulated Lunar Laser Ranging (LLR), Satellite Laser Ranging (SLR) to Lageos, and Very Long Baseline Interferometry (VLBI) data using realistic station positions and accuracies. Under the assumptions chosen, the normal equation combination solutions usually provide the best ERP over recovery periods of 6 and 12 hours, and 1, 2, and 5 days. However, solutions by the weighted mean (and even by VLBI alone) provide results that are nearly as good, i.e., within a factor of one to two in accuracy. Complete details are presented in [Archinal, 1987].

Type
III. Determination of Earth Rotation Parameters
Copyright
Copyright © Reidel 1988 

References

Archinal, B.A. (1987), Determination of Earth Rotation by the Combination of Data from Different Space Geodetic Systems, Dept. of Geodetic Science and Surveying Rep., Ohio State Univ., Columbus 43210–1247.Google Scholar
Coates, Robert J. (1985), ‘Performance of NASA Laser Ranging Systems During MERIT,’ in [Mueller, 1985], 6470.Google Scholar
Larden, D.R. (1982). Monitoring the Earth's Rotation by Lunar Laser Ranging, UNISURV S-20, Univ. of N.S.W., Kensington, Australia.Google Scholar
Mueller, I.I., ed. (1985), Proc. of the International Conf. on Earth Rotation and the Terrestrial Reference Frame, Dept. of Geodetic Science and Surveying, Ohio State Univ., Columbus.Google Scholar
Putney, B. (1977). ‘General Theory for Dynamic Satellite Geodesy,’ 319334 in National Geodetic Satellite Program, SP-365, NASA, Washington, D.C. Google Scholar
Robertson, D.S. and Carter, W.E. (1985), ‘Earth Orientation Determinations from VLBI Observations,’ in [Mueller, , 1985], 296306.Google Scholar
Schutz, B.E., Eanes, R.J., and Tapley, B.D. (1985), ‘The SLR Operational Center Series ERP (CSR)84L02,’ in [Mueller, , 1985], 104110.Google Scholar
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