About LEFS60 LEFS60 counts both electron and ions at 60 degrees from the space-craft spin axis . E1' 42-65 keV electrons E2' 64-112 keV electrons E3' 112-178 keV electrons E4' 178-290 keV electrons FP5' 546-761 keV ions FP6' 761-1223 keV ions FP7' 1.223-4.974 MeV ions LEFS60