Comparative Analysis of Models of the Earth's Gravity: 3. Accuracy of Predicting EAS Motion

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Comparative Analysis of Models of the Earth's Gravity: 3. Accuracy of Predicting EAS Motion

Kuznetsov, E. D. / Berland, V. E. / Wiebe, Yu. S. / Glamazda, D. V. / Kajzer, G. T. / Kolesnikov, V. I. / Khremli, G. P.

Abstract

Abstract This paper continues a comparative analysis of modern satellite models of the Earth's gravity which we started in [6, 7]. In the cited works, the uniform norms of spherical functions were compared with their gradients for individual harmonics of the geopotential expansion [6] and the potential differences were compared with the gravitational accelerations obtained in various models of the Earth's gravity [7]. In practice, it is important to know how consistently the EAS motion is represented by various geopotential models. Unless otherwise stated, a model version in which the equations of motion are written using the classical Encke scheme and integrated together with the variation equations by the implicit one-step Everhart's algorithm [1] was used. When calculating coordinates and velocities on the integration step (at given instants of time), the approximate Everhart formula was employed.

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Document information

Title :

Comparative Analysis of Models of the Earth's Gravity: 3. Accuracy of Predicting EAS Motion

Contributors:

Kuznetsov, E. D. (author) / Berland, V. E. (author) / Wiebe, Yu. S. (author) / Glamazda, D. V. (author) / Kajzer, G. T. (author) / Kolesnikov, V. I. (author) / Khremli, G. P. (author)

Published in:

Cosmic Research ; 40 , 3 ; 305-312

Publication date :

2002-05-01

Size :

8 pages

ISSN :

1608-3075 , 0010-9525

DOI :

https://doi.org/10.1023/A:1015985206275

Type of media :

Article (Journal)