Determination of the Earth rotation parameters by the Bureau International de l'Heure, 1962 1979

Details Determination of the Earth rotation parameters by the Bureau International de l'Heure, 1962 1979 Determination of the Earth rotation parameters by the Bureau International de l'Heure, 1962 1979

Mar 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980bgeod..54...81f&link_type=abstract

Bulletin Géodésique, Volume 54, Issue 1, pp.81-102

Statistics

Computation

6

Scientific paper

This description refers to the method which was initiated by the BIH in 1967 and the results of which appear in the Annual Reports and Circular D. The computation with this method has been extended to the past until 1962.0. The data centralised by the BIH for computing UT1-UTC and the coordinates of the pole are analysed: the model adopted to represent the errors of astronomical data series is introduced and its validity for comparing them with results from modern techniques is discussed. The initialization and the preservation process of the 1968 BIH system and the inclusion of the Doppler polar motion data are described in detail. The different presentations of the results are recalled. Finally some views are expressed on the accuracy of the 1968 BIH System, and the 1979 BIH System is introduced.

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