SEARCH FOR STABLE ORBITS AROUND 1999 KW4

Autor(es)

Oliveira, Thais C. ; Prado, Antonio F. B. A. ; Singla, P ; Weisman, RM ; Marchand, BG ; Jones, BA

• Tipo de documento: Artigo Científico
• Fonte: ASTRODYNAMICS 2018, PTS I-IV; v. 167, p. 20-pg., 2019-01-01.

Resumo

This paper is a study of the orbital motion of a space vehicle around the binary system 1999 KW4. The model used is the restricted full body problem, in which it is assumed that the mass of the spacecraft is negligible and that the binary system is composed of two-ellipsoid bodies. The equations of motion of the binary system are found using Lagrange's method. The solar radiation pressure perturbation is assumed to act on the spacecraft's dynamics along with the gravitational influence of the non-spherical asteroid bodies. The results are based on a grid search method to find stable orbits for a spacecraft to visit the 1999 KW4 system. Several types of families of orbits are found, such as orbits around one or both asteroid bodies. Trajectories ending in escapes from the double system or collisions with one of the asteroid bodies are also mapped because they need to be avoided. The eccentricity of the orbit of the binary system around the Sun is approximately 0.69, a large value, therefore the effect of the solar radiation pressure on the orbit of the spacecraft for short and long periods is investigated. (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: 17/07539-3 - Estudo de prevenção de impacto de um ou mais asteroides com a terra
• Beneficiário: Thais Carneiro Oliveira
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado
• Processo FAPESP: 16/14665-2 - Astrodinâmica Aplicada a Veículos Espaciais
• Beneficiário: Antônio Fernando Bertachini de Almeida Prado
• Modalidade de apoio: Auxílio à Pesquisa - Regular