Nonsphericity of the Moon and Near Sun-Synchronous Polar Lunar Orbits

Author:

Carvalho Jean Paulo dos Santos1,de Moraes Rodolpho Vilhena1,de Almeida Prado Antônio Fernando Bertachini2

Affiliation:

1. UNESP—Universidade Estadual Paulista, CEP 12516-410, Guaratinguetá-SP, Brazil

2. Division of Space Mechanics and Control—INPE, CEP 12227-010, São José dos Campos, SP, Brazil

Abstract

Herein, we consider the problem of a lunar artificial satellite perturbed by the nonuniform distribution of mass of the Moon taking into account the oblateness (J2) and the equatorial ellipticity (sectorial termC22). Using Lie-Hori method up to the second order short-period terms of the Hamiltonian are eliminated. A study is done for the critical inclination in first and second order of the disturbing potential. Coupling terms due to the nonuniform distribution of mass of the Moon are analyzed. Numerical simulations are presented with the disturbing potential of first and second order is. It an approach for the behavior of the longitude of the ascending node of a near Sun-synchronous polar lunar orbit is presented.

Funder

Fundação de Amparo à Pesquisa do Estado de São Paulo

Publisher

Hindawi Limited

Subject

General Engineering,General Mathematics

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1. Spacecraft Motion in an Ultra-Low Lunar Orbit under Lunar Gravitational Anomalies;Proceedings of Higher Educational Institutions. Маchine Building;2022-02

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