| Texto completo | |
| Autor(es): |
Ribeiro, Rebeca S. S.
;
Meireles, Lucas G. G.
;
Prado, Antonio F. B. A.
;
de Melo, Cristiano F. F.
Número total de Autores: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | SCIENTIFIC REPORTS; v. 13, n. 1, p. 15-pg., 2023-04-28. |
| Resumo | |
The formation of our Solar System and planetary defense strategies are among the priorities to be investigated in the next years by the space science community. As in-situ missions to small bodies (as comets and asteroids) are options to conduct these investigations, this paper proposes a combination of methodologies to produce low-cost transfers to near-earth asteroids (NEAs). Low-cost trajectories derived from retrograde periodic orbits around L-1 are taken as a starting point for the escape of the Earth-Moon system and, as the vehicle exits the sphere of influence of Earth, the deployment of an adjustable solar sail guarantees the interception of the target in a predetermined position and time of flight. Different sail loadings (164, 61 and 30 g/m(2)) are tested and a case study to the NEA 65,803 Didymos is presented. The results show economies in the velocity increments required by the mission up to 8.48%, although a longer time of flight might be needed depending on the sail loading. (AU) | |
| Processo FAPESP: | 18/19959-0 - Estudo do uso de velas solares em trajetórias de veículos espaciais |
| Beneficiário: | Lucas Gouvêa Meireles |
| 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 |