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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Studying the errors in the estimation of the variation of energy by the ``patched-conics{''} model in the three-dimensional swing-by

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Autor(es):
Negri, Rodolfo Batista [1] ; Bertachini de Almeida Prado, Antonio Fernando [1] ; Sukhanov, Alexander [1, 2]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Inst Nacl Pesquisas Espaciais, Sao Jose Dos Campos - Brazil
[2] Russian Acad Sci, Space Res Inst, Moscow - Russia
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: CELESTIAL MECHANICS & DYNAMICAL ASTRONOMY; v. 129, n. 3, p. 269-284, NOV 2017.
Citações Web of Science: 4
Resumo

The swing-by maneuver is a technique used to change the energy of a spacecraft by using a close approach in a celestial body. This procedure was used many times in real missions. Usually, the first approach to design this type of mission is based on the ``patched-conics{''} model, which splits the maneuver into three ``two-body dynamics.{''} This approach causes an error in the estimation of the energy variations, which depends on the geometry of the maneuver and the system of primaries considered. Therefore, the goal of the present paper is to study the errors caused by this approximation. The comparison of the results are made with the trajectories obtained using the more realistic restricted three-body problem, assumed here to be the ``real values{''} for the maneuver. The results shown here describe the effects of each parameter involved in the swing-by. Some examples using bodies in the solar system are used in this part of the paper. The study is then generalized to cover different mass parameters, and its influence is analyzed to give an idea of the amount of the error expected for a given system of primaries. The results presented here may help in estimating errors in the preliminary mission analysis using the ``patched-conics{''} approach. (AU)

Processo FAPESP: 11/08171-3 - Dinâmica orbital de pequenos corpos
Beneficiário:Othon Cabo Winter
Linha de fomento: Auxílio à Pesquisa - Temático
Processo FAPESP: 11/13101-4 - Estudo de manobras orbitais para escape de colisão de um veículo espacial com grupos de partículas
Beneficiário:Vivian Martins Gomes
Linha de fomento: Auxílio à Pesquisa - Apoio a Jovens Pesquisadores
Processo FAPESP: 16/14665-2 - Astrodinâmica aplicada a veículos espaciais
Beneficiário:Antônio Fernando Bertachini de Almeida Prado
Linha de fomento: Auxílio à Pesquisa - Regular