Variation of fast charged particles in event of 22 November 1977 based on Cosmos-900 satellite data

The Cosmos-900 satellite studied cosmic rays by a Cherenkov counter which recorded heavy particles with a charge of over 1 and energy of over 400 MeV/nucleon plus electrons with energies of over 15 MeV. A solar flare occurred on 22 Nov. 1977, which began at 9:45 a.m. and reached its maximum at 10:07 a.m. The data obtained can be used to estimate the form of the energy spectrum of the radiation recorded in the energy range from 400 to 2000 MeV. Sharp counting peaks were observed at 10:35 and 11:40 a.m. Neutron monitors do not show these sharp increases. It is possible that the maxima result from specifics of penetration of solar cosmic rays into the magnetosphere and albedo particles which arise as cosmic rays to act upon the atmosphere.