Cosmic rays in near-earth space in 1977-1979 based on Cosmos-900 data

A study is made of the readings of channels 1, 3, 5 and 11 of a Cerenkov counter with 18 energy recording thresholds and a time resolution of about 20 seconds carried on the Cosmos-900 satellite at an altitude of 460 to 550 km, orbital inclination 83 deg. The variation in radiation outside the radiation belts with latitude is illustrated. There is a maximum in additional radiation with a sharp cutoff for vertically arriving particles at 0.7 to 2 GV. A split is observed in the periequatorial radiation. The flux in channel 11 is approximately double the flux of galactic alpha particles in the middle latitudes. The approximate doubling in the counting rate in channel 11 in comparison to the expected alpha particle count is not yet explained.