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High and low thrust mission analysis for a Mars exploration programThe purpose of the study is to identify limits, trends, and sensitivities of Mars Transportation System performance over several Mars mission opportunities. Two Mars Transfer Vehicle (MTV) configurations utilizing different propulsion systems (Chemical/Aerobrake and NEP - Nuclear Electric Propulsion) are outlined. The trades involved in comparing two MTS candidate designs are assessed. Mission analysis for mission opportunities beginning in around 2010 and continuing past 2030 is performed, and a Mars mission model is covered, along with orbit selection and NEP and Chemical/Aerobrake performance. The results of several sensitivity studies are given in order to allow for contingency planning in design and performance. It is concluded that the low-thrust system perform best, its vehicle mass is lower and its trip times are more stable.
Document ID
19910031656
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Shepard, Kyle M.
(General Dynamics Corp. Space Systems Div., San Diego, CA, United States)
Horsewood, Jerry
(General Dynamics Corp. San Diego, CA, United States)
Suskin, Mark
(Adasoft, Inc. Lanham, MD, United States)
Date Acquired
August 15, 2013
Publication Date
August 1, 1990
Subject Category
Astronautics (General)
Report/Patent Number
AIAA PAPER 90-2987
Accession Number
91A16279
Funding Number(s)
CONTRACT_GRANT: NAS8-37588
Distribution Limits
Public
Copyright
Other

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