On the current estimation of some mechanical and geometrical parameters of the Earth

The Earth’s principal axes and principal moments of inertia, was estimated from the least-squares adjustment of gravitational harmonic coefficients of second degree of recent global Earth gravity models including EIGEN-1S solution and the dynamical ellipticity derived from the precession constant th...

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Bibliographic Details
Main Author: A. N. Marchenko
Format: Article
Language:English
Published: National Aviation University 2001-12-01
Series:Вісник Астрономічної школи
Online Access:http://astro.nau.edu.ua/issues/2001_V.2_Iss.2/102.html
Description
Summary:The Earth’s principal axes and principal moments of inertia, was estimated from the least-squares adjustment of gravitational harmonic coefficients of second degree of recent global Earth gravity models including EIGEN-1S solution and the dynamical ellipticity derived from the precession constant through VLBI. The estimation was made for the time-independent components (at epoch) of the Earth’s inertial tensor and the time-dependent components of the tensor of inertia, based on given information on the secular and periodic variations of harmonic coefficients of second degree.
ISSN:1607-2855
2411-6602