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Mars Mission Concepts and OpportunitiesTrajectory and mission requirement data are presented for Earth Mars opposition and conjunction class roundtrip flyby and stopover mission opportunities available between 1997 and 2045. The opposition class flyby mission uses direct transfer trajectories to and on return from Mars. The opposition class stopover mission employs the gravitational field of Venus to accelerate the space vehicle on either the outbound or inbound leg in order to reduce the propulsion requirement associated with the opposition class mission. The conjunction class mission minimizes propulsion requirements by optimizing the stopover time at Mars.
Document ID
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Archie C Young
(Marshall Space Flight Center Redstone Arsenal, Alabama, United States)
Date Acquired
September 5, 2013
Publication Date
May 1, 1986
Publication Information
Publication: Manned Mars Missions Working Group Papers: Volume 1, Section 1-4
Publisher: National Aeronautics and Space Administration
Subject Category
Astronautics (General)
Report/Patent Number
Meeting Information
Meeting: Manned Mars Missions Workshop
Location: Huntsville, AL
Country: US
Start Date: June 10, 1985
End Date: June 14, 1985
Sponsors: National Aeronautics and Space Administration
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.
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