On a possible new approach for investigating the secular variations of the low-degree geopotential coefficients
arXiv:physics/0411189
Abstract
In this paper we try to suggest a possible novel method to determine some selected even zonal harmonics J_l of the Earth's geopotential. Time series many years long of suitably linearly combined residuals of some Keplerian orbital elements of certain existing geodetic SLR satellites would be examined. A CHAMP/GRACE-only background reference model should be used for the part of the geopotential which we are not interested in. The retrieved values for the even zonal harmonics of interest would be, by construction, independent of each other and of any post-Newtonian features. The so obtained mini-model could, subsequently, be used in order to enhance the accuracy and the reliability of some tests of post-Newtonian gravity, with particular emphasis to the measurement of the Lense-Thirring effect by means of LAGEOS and LAGEOS II.
Latex2e, 17 pages, no figures, 3 tables. Typos corrected
References in corpus (3)
- The impact of the static part of the Earth's gravity field on some tests of General Relativity with Satellite Laser Ranging
- On the reliability of the so far performed tests for measuring the Lense-Thirring effect with the LAGEOS satellites
- The impact of the new CHAMP and GRACE Earth gravity models on the measurement of the general relativistic Lense--Thirring effect with the LAGEOS and LAGEOS II satellites