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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Analytical study of the swing-by maneuver in an elliptical system

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Ferreira, Alessandra F. S. [1] ; Prado, Antonio F. B. A. [1] ; Winter, Othon C. [2] ; Santos, Denilson P. S. [3]
Total Authors: 4
[1] INPE, Sao Jose Dos Campos, SP - Brazil
[2] Univ Estadual Paulista UNESP, Grp Dinam Orbital & Planetol, Guaratingueta, SP - Brazil
[3] Univ Estadual Paulista UNESP, Sao Joao Da Boa Vista, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: ASTROPHYSICS AND SPACE SCIENCE; v. 363, n. 2 FEB 2018.
Web of Science Citations: 7

The objective of the present paper is to derive a set of analytical equations that describe a swing-by maneuver realized in a system of primaries that are in elliptical orbits. The goal is to calculate the variations of energy, velocity and angular momentum as a function of the usual basic parameters that describe the swing-by maneuver, as done before for the case of circular orbits. In elliptical orbits the velocity of the secondary body is no longer constant, as in the circular case, but it varies with the position of the secondary body in its orbit. As a consequence, the variations of energy, velocity and angular momentum become functions of the magnitude and the angle between the velocity vector of the secondary body and the line connecting the primaries. The ``patched-conics{''} approach is used to obtain these equations. The configurations that result in maximum gains and losses of energy for the spacecraft are shown next, and a comparison between the results obtained using the analytical equations and numerical simulations are made to validate the method developed here. (AU)

FAPESP's process: 16/24561-0 - On the relevance of small bodies in orbital dynamics
Grantee:Othon Cabo Winter
Support type: Research Projects - Thematic Grants
FAPESP's process: 17/04643-4 - Dynamics and control of space systems by tether
Grantee:Denilson Paulo Souza dos Santos
Support type: Regular Research Grants
FAPESP's process: 16/14665-2 - Astrodynamics applied to space vehicles
Grantee:Antônio Fernando Bertachini de Almeida Prado
Support type: Regular Research Grants