Example of the calculated density of energetic protons with energies 1 MeV < E < 100 MeV) in geospace. Both the SEP’s energy spectrum and geomagnetic parameters are taken for quiet conditions. The figure demonstrates that the topology of the SEPs population in the geospace is affected by the particles’ gyro-motion. Here, X-axis is directed toward the Sun, Y-axis in the equatorial plane, and Z-axis is such that the coordinate frame is right-handed.