Current estimates of mean Earth ellipsoid parameters

Independent estimates of a, J2, kME (of the solid earth), Ro (scale factor for lengths), γe (equatorial gravity) and a fixed ω are used in a weighted least squares adjustment to determine adjusted values for the variable parameters assuming a rotational equipotential ellipsoid as the figure of refer...

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Bibliographic Details
Published inGeophysical research letters Vol. 1; no. 1; pp. 35 - 38
Main Author Rapp, Richard H.
Format Journal Article
LanguageEnglish
Published Blackwell Publishing Ltd 01.05.1974
Subjects
Adjustment
Earth
Ellipsoids
Estimates
Geophysics
Gravitation
Least squares method
Rotational
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Summary:Independent estimates of a, J2, kME (of the solid earth), Ro (scale factor for lengths), γe (equatorial gravity) and a fixed ω are used in a weighted least squares adjustment to determine adjusted values for the variable parameters assuming a rotational equipotential ellipsoid as the figure of reference. The adjusted values are: kME = (3.9860034±0.0000023)×1014 m³/sec²; γe = 978031.69±0.77 mgals; f = 1/(298.25636±0.00147); Ro = 6363674.98±2.50 m, a = 6378139.0±2.51m and Wo (the geoid potential) = 6263681.62kgal m.
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ark:/67375/WNG-SBMQNTM5-B
ArticleID:GRL11
ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0094-8276
1944-8007
DOI:10.1029/GL001i001p00035