Earth rotation from lunar laser ranging

Details Earth rotation from lunar laser ranging Earth rotation from lunar laser ranging

Dec 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26as...54..519d&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 54, Dec. 1983, p. 519-540.

Astronomy and Astrophysics

Astrophysics

2

Celestial Geodesy, Earth Rotation, Lunar Rangefinding, Universal Time, Correction, Error Analysis, Tables (Data)

Scientific paper

The rotational orientation (Universal Time and the variation of latitude at McDonald Observatory, Texas) of the earth has been determined between mid 1970 and mid 1982 from McDonald Observatory lunar laser ranging (LLR) data. Universal Time, UT1, is calculated and supplied in three forms, the raw daily decomposition values, the Gaussian filtered values and the Fourier smoothed values. Formal error estimates are available for all three types. LLR can calculate corrections to one component of polar motion, the variation of latitude at McDonald Observatory. Modelling improvements have been applied here and a significant drop is seen in the residuals. The rms weighted residual for the entire thirteen year data span (3,326 'normal' points acquired between August 1969 and May 1982) is 18.7 cm.

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