Observations of near plasma sheet, ring current and energetic electron radiation belt under northward IMF condition

• Published in: Physics and chemistry of the earth. Part C, Solar-terrestrial and planetary science Solar-terrestrial and planetary science, 2000-01, Vol.25 (1-2), p.51-54
• Main Authors: Kovtyukh, A S, Marjin, B V, Pavlov, N N, Reizman, SYa, Rubinstein, IA, Sosnovets, EN, Teltsov, M V, Vlasova, NA
• Format: Article
• Language: English
• ISSN: 1464-1917
• DOI: 10.1016/S1464-1917(99)00035-5

The dynamics of different plasma domains is studied using data from the plasma (E sub(i) sub(,) sub(e) =0.1-12.4 keV) and energetic particle (E sub(i) =41-133 keV, E sub(e) =97-1010 keV) experiments onboard the geostationary satellites ``Gorizont-34'' and ``Gorizont-35'' for the period from 11 to 25 March 1992. The analysed period consists of relatively quiet time, small geomagnetic storms, SC and the long time (>4 days) of the northward interplanetary magnetic field. The observed features of the energetic particle flux distributions were ``untypical'' for the geostationary orbit region: the decrease of the electron fluxes by about a factor of ten; the decrease of the ion fluxes in the energy range from about 100 eV to 400 eV by about a factor of 5-10 and the formation of the intensive fluxes of ions at the energy similar to 5-12.4 keV. The obtained results consist qualitatively with the conception of a closed topology of the magnetosphere for the steady northward interplanetary magnetic field condition and point to the dependence of the magnetospheric mechanism of the charged particle acceleration on the interplanetary magnetic field parameters.