You may select the file by filename and title. The filename is displayed in the edit box to the right. Trapped Proton Model is selected from a list here. The standard model is called AP8. We have chosen AP8MIN here.
Year is the epoch at which the magnetic field is evaluated for trapped proton calculations.
Entering zero here selects the standard epoch. Geomagnetic Field Model may be selected from a list of about 20. Orbit Integration method. Normally the trapped proton flux is evaluated at each point along the orbit. These fluxes are summed to give you the total fluence during the mission, or equivalently, an orbit-averaged flux.