Energetic trapped proton and electron flux variations at low altitudes measured onboard ⪡CORONAS-I⪢ satellite, their connection with the particle flux variations in geotationary orbit Original Research Article

Trapped energetic particle variations at altitudes of ∼500 km were studied using data obtained in the experiment onboard the ⪡CORONAS-I⪢ satellite (launched in March, 1994). Results of analysis of proton (1–4.5 MeV) and electron (<2 MeV) flux variations at different L-shells (from 3 to 6) measured by MKL-instrument (Kuznetsov et al., 1995) from March to June, 1994 are presented. Connection of these particle flux variations with particle flux dynamics measured onboard the ⪡GOES⪢ satellite, geomagnetic indices variations and with solar parameters were analyzed. We found correlation between electron fluxes measured onboard the ⪡CORONAS-I⪢ satellite and those measured onboard the ⪡GOES⪢ satellite with different time lag for different L-shell values (about 5 days for L=3.5 and about 1 day for L from 4 to 5), for proton correlation any correlation was not found.