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Grid2: A Program for Rapid Estimation of the Jovian Radiation Environment: A Numeric Implementation of the GIRE2 Jovian Radiation Model for Estimating Trapped Radiation for Mission Concept StudiesGrid2 is a program that utilizes the Galileo Interim Radiation Electron model 2 (GIRE2) Jovian radiation model to compute fluences and doses for Jupiter missions. (Note: The iterations of these two softwares have been GIRE and GIRE2; likewise Grid and Grid2.) While GIRE2 is an important improvement over the original GIRE radiation model, the GIRE2 model can take as long as a day or more to compute these quantities for a complete mission. Grid2 fits the results of the detailed GIRE2 code with a set of grids in local time and position thereby greatly speeding up the execution of the model--minutes as opposed to days. The Grid2 model covers the time period from 1971 to 2050and distances of 1.03 to 30 Jovian diameters (Rj). It is available as a direct-access database through a FORTRAN interface program. The new database is only slightly larger than the original grid version: 1.5 gigabytes (GB) versus 1.2 GB.
Document ID
20160002481
Acquisition Source
Jet Propulsion Laboratory
Document Type
Other
External Source(s)
Authors
Evans, R. W.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Brinza, D. E.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
March 1, 2016
Publication Date
January 1, 2014
Subject Category
Space Radiation
Report/Patent Number
JPL-Publ-14-8
Distribution Limits
Public
Copyright
Other
Keywords
Europa
flyby mission

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