title: An investigation of the spatial variations of the energetic trapped electrons at low altitudes.
abstract: We have analyzed the trapped electron data (0.19-3.2 MeV) taken by the Japanese OHZORA satellite operated at 350-850 km altitude in polar orbit during 1984-1987 near solar minimum. The electron observations reveal all the global attributes of the quiet-time electron radiation belts, such is the South Atlantic Anomaly, the electron "slot", and the outer radiation belt regions. The electron data are in general agreement with the NASA AE-8 electron model, but there are differences, particularly with respect to distinctive local-time variations in the slot region. In this paper, we present results from analyses of variations of the electron pitch angle distributions with local time, L-shell and altitude.
authors.affiliation: Space Physics Data Facility, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.
authors.forename: S F
authors.initials: SF
authors.lastname: Fung
authors.forename: L C
authors.initials: LC
authors.lastname: Tan
authors.forename: D
authors.initials: D
authors.lastname: Bilitza
authors.forename: D
authors.initials: D
authors.lastname: Boscher
authors.forename: J F
authors.initials: JF
authors.lastname: Cooper
mesh_terms: D000531:Altitude; D016880:Anisotropy; D001267:Atlantic Ocean; D001272:Atmosphere; D018534:Earth, Planet; D004583:Electrons; D005118:Extraterrestrial Environment; D008280:Magnetics; D019445:Solar Activity; D013020:South America; D018531:Spacecraft / Q000295:instrumentation*; D013997:Time Factors