This package includes four modules that compute latitude-longitude grids of Space Radiation environments at any altitude.

• Magnetic Field Properties

  The magnetic field strength, dip angle, deviation, radial component, N-S component, E-W component, or L-shell parameter for any field model.

• Geomagnetic Shielding

  The vertical geomagnetic cutoff, either normal or stormy.

• Trapped Protons

  The AP-8 trapped proton intensity for any magnetic field model and proton energy.

• Trapped Electrons

  The AE-8 trapped electron intensity for any magnetic field model and electron energy.

Grids are specified by longitude and latitude bounds, and by the number of grid points in either direction. In this way, either broad or narrow region may be covered, and the density of points may be adjusted.

The environment grid files created by these modules may be listed on screen, written to a text file for further processing, or displayed as color contour plots using the MapGVS module.