Astronomical School’s Report, 2001, Volume 2, Issue 2, Pages 102–108
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UDC 521.528

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

Marchenko A.N.

National University “Lviv Polytechnic”


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.



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