Using resonant Earth-flyby trajectories for space exploration

Details Using resonant Earth-flyby trajectories for space exploration Using resonant Earth-flyby trajectories for space exploration

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007padeu..19....7b&link_type=abstract

Publications of the Astronomy Department of the Eötvös University (PADEU), 2007, ISBN 963 463 557, Vol. 19. Edited by B. Érdi a

Astronomy and Astrophysics

Astronomy

Scientific paper

This paper explores the advantages of using gravity assisted trajectories for flyby and rendezvous missions to near-Earth asteroids (NEAs) or other solar system bodies. A special case of such orbits is considered here: resonant Earth-flyby trajectories. On these trajectories the spacecraft acquires a large relative velocity in respect to the Earth by using one deep-space maneuver along the heliocentric orbit. A resonant condition between Earth and the spacecraft is required for a subsequent flyby. This one can send the spacecraft on more inclined orbits, or on orbits with large aphelion distances. In this manner the accessibility region for NEAs is substantially increased and distant bodies in the solar system are reachable with lower costs. The problem is formulated in the frame of Opik's geometric formalism.

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