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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.)

The Study of the Asymmetric Multiple Encounters Problem and Its Application to Obtain Jupiter Gravity Assisted Maneuvers

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Souza dos Santos, Denilson Paulo [1] ; Bertachini de Almeida Prado, Antonio Fernando [1] ; Rocco, Evandro Marconi [1]
Total Authors: 3
[1] INPE, Div Space Mech & Control, BR-12227310 Sao Jose Dos Campos, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Web of Science Citations: 0

The Multiple Encounters Problem is described in the literature as the problem of finding trajectories for a spacecraft that leaves from a mother planet, describes a trajectory in the interplanetary space, and then goes back to the mother planet. The present paper extends the literature and the departure and arrival angles of the spacecraft are generalized to be nonsymmetrical. The solutions are shown in terms of the true (nu) and eccentric anomaly (eta). The velocity variation (Delta V) required for the transfer is also shown. Then, this study is generalized to consider the possibility that the spacecraft makes a close approach with the mother planet to change its energy in the return trip. The velocity (Delta V) and energy variation (Delta E) due to this passage are obtained. The topics studied here can be applied in missions that leave and come back to the Earth, with the goal of studying the interplanetary space, as well as for missions whose objective is to make an alteration in the energy of the space vehicle through a swing-by with the mother body. (AU)

FAPESP's process: 11/09310-7 - Orbital study of the motion of spacecrafts
Grantee:Antônio Fernando Bertachini de Almeida Prado
Support Opportunities: Regular Research Grants
FAPESP's process: 11/08171-3 - Orbital dynamics of minor bodies
Grantee:Othon Cabo Winter
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 09/16517-7 - Optimal space trajectories using solar electric propulsion (Sep) and gravity assisted maneuver, with genetic algorithm
Grantee:Denilson Paulo Souza dos Santos
Support Opportunities: Scholarships in Brazil - Post-Doctoral