Study of fast charged particles with a Cerenkov detector on the KOSMOS-900 orbiter

Experimental data, for the period from April 30, 1977 to October 10, 1979, on the spatial distribution of secondary electrons with energy greater than 15 MeV and protons with energy greater than 400 MeV at an altitude of 500 km as well as data on the fluxes of relativistic electrons with energy exceeding 15 MeV, arising in the decay phase of magnetic storms and trapped in the outer radiation belt, are presented. The results of measurements of solar cosmic rays (SCR) in the vent on November 22, 1977 are discussed.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 10, pp. 69–74, October, 1987.