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Mercury orbiter transport studyA data base and comparative performance analyses of alternative flight mode options for delivering a range of payload masses to Mercury orbit are provided. Launch opportunities over the period 1980-2000 are considered. Extensive data trades are developed for the ballistic flight mode option utilizing one or more swingbys of Venus. Advanced transport options studied include solar electric propulsion and solar sailing. Results show the significant performance tradeoffs among such key parameters as trip time, payload mass, propulsion system mass, orbit size, launch year sensitivity and relative cost-effectiveness. Handbook-type presentation formats, particularly in the case of ballistic mode data, provide planetary program planners with an easily used source of reference information essential in the preliminary steps of mission selection and planning.
Document ID
19790015816
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Friedlander, A. L. (Science Applications, Inc. Schaumburg, IL, United States)
Feingold, H. (Science Applications, Inc. Schaumburg, IL, United States)
Date Acquired
September 4, 2013
Publication Date
January 1, 1977
Subject Category
Astronautics (General)
Report/Patent Number
NASA-CR-158658
SAI-1-120-580-T6
Accession Number
79N23987
Funding Number(s)
CONTRACT_GRANT: NASW-2893
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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