Astronomy and Astrophysics – Astronomy
Scientific paper
May 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979smf..conf.....r&link_type=abstract
Princeton University and American Institute of Aeronautics and Astronautics, Conference on Space Manufacturing Facilities, 4th,
Astronomy and Astrophysics
Astronomy
2
Asteroid Missions, Interplanetary Trajectories, Low Thrust, Space Transportation, Trajectory Optimization, Ballistic Trajectories, Earth-Moon System, Extraterrestrial Resources, Lunar Gravitational Effects, Space Commercialization, Time Dependence, Velocity Distribution
Scientific paper
The scenarios for low-thrust missions to retrieve asteroidal materials for mining purposes have been discussed in detail elsewhere and it is not necessary to rehash the mission plans here. The type of asteroid has also been discussed, but the selection of suitable targets by their orbital elements has so far only been looked at in a general way. The purpose of this paper is to discuss the dynamics of the optimal low thrust trajectories required to bring a portion of an asteroid from its solar orbit to intersection with the earth's orbit. A companion paper in this volume by O'Leary and Ross discusses the capture of the incoming body into high earth orbit by gravity assist maneuvers near the moon. The first leg of the mission, from earth to asteroid, is assumed to be ballistic since the equipment required for asteroid retrieval is orders of magnitude less massive than the asteroid fragment itself and the same thrust is available on both legs.
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