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Secular dynamics of navigation satellites in the MEO and GSO regions

Secular dynamics of navigation satellites in the MEO and GSO regions In this study, a dynamical model is developed to describe the secular evolution of navigation satellites under the geocentric reference frame with the Laplace orbit as the fundamental plane. The disturbing function, involving the effects of Earth’s oblateness and lunisolar gravitational attraction, is averaged over the orbital periods of both the satellite and the perturbers. In the regions of medium-Earth orbits and geosynchronous orbits, there are varieties of lunisolar resonances for governing the secular dynamics of navigation satellites. Among these resonances, we are interested in the ones occurring at the critical inclinations as well as the lunar node resonances. For each resonance of interest, the resonant center and width are identified analytically. Finally, dynamical maps are compared with the analytical results.[graphic not available: see fulltext] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Astrodynamics Springer Journals

Secular dynamics of navigation satellites in the MEO and GSO regions

Astrodynamics , Volume 6 (4) – Dec 1, 2022

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Publisher
Springer Journals
Copyright
Copyright © Tsinghua University Press 2021
ISSN
2522-008X
eISSN
2522-0098
DOI
10.1007/s42064-021-0110-4
Publisher site
See Article on Publisher Site

Abstract

In this study, a dynamical model is developed to describe the secular evolution of navigation satellites under the geocentric reference frame with the Laplace orbit as the fundamental plane. The disturbing function, involving the effects of Earth’s oblateness and lunisolar gravitational attraction, is averaged over the orbital periods of both the satellite and the perturbers. In the regions of medium-Earth orbits and geosynchronous orbits, there are varieties of lunisolar resonances for governing the secular dynamics of navigation satellites. Among these resonances, we are interested in the ones occurring at the critical inclinations as well as the lunar node resonances. For each resonance of interest, the resonant center and width are identified analytically. Finally, dynamical maps are compared with the analytical results.[graphic not available: see fulltext]

Journal

AstrodynamicsSpringer Journals

Published: Dec 1, 2022

Keywords: secular resonances; Laplace plane; navigation satellites; dynamical maps

References