NASA/CR-209879, Armstrong, T.W. and Colborn, B.L., TRAP/SEE Code Users Manual for Predicting Trapped Radiation Environments, NASA's Space Environments and Effects (SEE) Program, Technical Monitor: J.W. Watts, Jr., NASA Marshall Space Flight Center, AL 35812, and Science Applications International Corporation (SAIC), 1706 Prospect Road, Prospect, TN 38477, January, 2000, pp. 48, Format(s): PDF 4061k |
TRAP/SEE is a PC-based computer code with a user-friendly interface which predicts the ionizing radiation exposure of spacecraft having orbits in the Earth's trapped radiation belts. The code incorporates the standard AP8 and AE8 trapped proton and electron models but also allows application of an improved database interpolation method developed by Daly and Evans. The code treats low-Earth as well as highly-elliptical Earth orbits, taking into account trajectory perturbations due to gravitational forces from the Moon and Sun, atmospheric drag, and solar radiation pressure. Orbit-average spectra, peak spectra per orbit, and instantaneous spectra at points along the orbit trajectory are calculated. Described in this reportare the features, models, model limitations and uncertainties, input and output descriptions, and example calculations and applications for the TRAP/SEE code
| Keywords: | trapped radiation models, trapped radiation code, space radiation software, space ionizing radiation environments |
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| Subjects: | Space Sciences: Space Radiation: Radiation Belts |
| ID Code: | 510 |
| Deposited On: | 01 August 2002 |