Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983navpa..31..227t&link_type=abstract
Navigation (Paris) (ISSN 0028-1530), vol. 31, April 1983, p. 227-235. In French.
Astronomy and Astrophysics
Astronomy
Asteroid Missions, Astrodynamics, Interplanetary Navigation, Interplanetary Transfer Orbits, Optimization, Orbital Rendezvous, Swingby Technique, Traveling Salesman Problem
Scientific paper
Various navigational factors involved in guidance of an asteroid mineral survey probe if launched on the Ariane 4 are considered. Any flyby of an asteroid will be subject to solar gravity, the velocity of the probe relative to the sun and the asteroid, and the orbit and the velocity of the asteroid relative to the sun. Use of a gravity assist by the earth or Mars is a way to gain added inertial forces, therefore the 'cosmic flipper' effect; more asteroid groups can be visited in this manner. The navigational coordinates must be plotted in a heliocentric coordinate system to account for the sun's gravitational sphere of influence. Candidate asteroid groups which can be visited were studied using the travelling salesman problem, which generated astronomical numbers of possible trajectories. Considering a minimal distance and maximum number of asteroids, a total of 14,000 missions were identified. A mission to survey the asteroid Ceres in 1987 with a 400 kg instrument payload is recommended.
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