An Intercomparison of Connected-Element Interferometer and Lunar Laser Earth Rotation Parameters View Full Text


Ontology type: schema:Chapter     


Chapter Info

DATE

1982

AUTHORS

Dennis D. McCarthy

ABSTRACT

The determination of Earth orientation parameters using techniques which promise an improvement in the precision of their measurements requires a careful evaluation of the systematic errors present in each series of observations. It is now possible to begin to intercompare two of these sets of observations of the rotation of the Earth (UT1-UTC) obtained routinely and independently. These are the data obtained from laser ranging to the Moon and those derived from the connected-element interferometer information of the U. S. Naval Observatory. Although these data are available for a relatively short time span, it is possible to begin to intercompare the observations in an effort to derive possible systematic errors existing in the data. This has been done using data from July 1979 to March 1980 in comparison with Bureau International de l’Heure (BIH) data. Using this information, the hypothesis that there is no correlation between the differences of the interferometer and laser ranging data with respect to the BIH must be rejected. This indicates that both sets of observations show that systematic errors do exist in the BIH data. The nature of the correlation of the two series is examined to establish possible models of the systematic errors. A much longer series of data from both techniques is necessary to improve the estimates, and the results will depend critically on adopted models used in the reductions and the degree of smoothing to which the raw data are subjected. More... »

PAGES

89-95

Book

TITLE

High-Precision Earth Rotation and Earth-Moon Dynamics

ISBN

978-94-009-7809-6
978-94-009-7807-2

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/978-94-009-7807-2_7

DOI

http://dx.doi.org/10.1007/978-94-009-7807-2_7

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1048563901


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