OHZORA High Energy Particle Observations

Observations of fluxes and energy spectra of electrons (0.19–3.2 MeV) and protons (0.64–35 MeV) by OHZORA satellite are reported. The results obtained during March 14-June 22, 1984 are discussed in this paper. The maximum fluxes of electrons and protons are observed in the South Atlantic Anomaly and the auroral zones. Narrow peaks of counting rate in “the midlatitude zone” of L = 1.6 are observed over the south Pacific Ocean and Mexico, and the pitch angle distribution of the particles shows that these particles are geomagnetically trapped. Temporarily intensive proton and He ion fluxes at the north polar cap region are observed, and their particle energy spectrum shows that solar flare particles are injected into the polar cap.