... Data . ... Models . Solar energetic particles . Paraboloid model . ... Neutron flux variations (RU) . ... This program package is intended to prognose the environment on the board of near-earth elliptic orbiting satellites in the open space as well as behind the Al shielding. ... Next is the required spectrum type (integral or differential). ... sp_x.txt - solar proton spectrum behind shielding, fluence . sn_x.txt - solar neutron spectrum behind shielding, fluence . ... Solar . ...