| Texto completo | |
| Autor(es): Mostrar menos - |
Santos, L. B. T.
;
Sousa-Silva, P. A.
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Terra, M. O.
;
Aljbaae, S.
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Sanchez, D. M.
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Prado, A. F. B. A.
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Oliveira, G. M.
;
Monteiro, F.
;
de Almeida Jr, A. K.
;
Lima, N. B.
;
Lima, N. B. D.
Número total de Autores: 11
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| Tipo de documento: | Artigo Científico |
| Fonte: | Planetary and Space Science; v. 233, p. 19-pg., 2023-05-27. |
| Resumo | |
In this work, we performed a dynamical analysis of a spacecraft around a nearly equal-mass binary near-Earth asteroid with application to the asteroid 2017 YE5, which is also a possible dormant Jupiter-family comet. Thus, we investigated the motion of a particle around this binary system using the circular restricted three-body problem. We calculated the locations of the Lagrangian points of the system and their Jacobi constant. Through numerical simulations, using the Poincare? Surface of Sections, it was possible to find several prograde and retrograde periodic orbits around each binary system's primary, some exhibiting significantly-sized higher-order behavior. We also calculated the stability of these orbits. After finding the periodic orbits, we investigated the influence of solar radiation pressure on these orbits. For this analysis, we considered that the area-to-mass ratio equals 0.01 and 0.1. We also performed a spacecraft lifetime analysis considering the physical and orbital characteristics of the 2017YE5 system and investigated the behavior of a spacecraft in the vicinity of this system. We analyzed direct and retrograde orbits for different values of Jacobi's constant. This study investigated orbits that survive for at least six months, not colliding or escaping the system during that time. We also analyze the initial conditions that cause the spacecraft to collide with M1 or M2, or escape from the system. In this work, we take into account the gravitational forces of the binary asteroid system and the solar radiation pressure (SRP). Finally, we calculated optimal bi-impulsive orbital maneuvers between the collinear Lagrangian points. We found a family of possible orbital transfers considering times of flight between 0.1 and 1 day. (AU) | |
| Processo FAPESP: | 16/18418-0 - Busca por órbitas em torno dos pontos Lagrangianos em um asteroide triplo e transferências orbitais |
| Beneficiário: | Leonardo Barbosa Torres dos Santos |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |
| Processo FAPESP: | 16/24561-0 - A relevância dos pequenos corpos em dinâmica orbital |
| Beneficiário: | Othon Cabo Winter |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |