Accession Number : AD0642629

Title :   SEVERAL OBSERVATIONS OF LOW-ENERGY PROTONS AND ELECTRONS IN THE EARTH'S MAGNETOSPHERE WITH OGO 3.

Descriptive Note : Progress rept.,

Corporate Author : IOWA UNIV IOWA CITY DEPT OF PHYSICS AND ASTRONOMY

Personal Author(s) : Frank,L. A.

Report Date : NOV 1966

Pagination or Media Count : 55

Abstract : An initial survey is made of low-energy electrons and protons over geocentric radial distances ranging from 3 RE to 15 RE (RE, earth radius) with measurements obtained with a sensitive electrostatic analyzer device borne on the earth-satellite OGO 3. It is intended to provide an introduction to several of the characteristics of the spatial distributions of electrons and protons over an energy range 200 eV to 50 keV within the earth's magnetosphere near the magnetic equatorial plane. Several features of the charged particle distributions at the boundary of durable trapping of charged particles by the geomagnetic field at geocentric radial distances approximately 8 RE in the evening sector of the earth's magnetosphere are clarified. Simultaneous observations of the differential energy spectrums of electrons and protons, separately, over the aforementioned energy range are presented for regions in the earth's magnetic tail and deep within the radiation zones and will be important in delineating prominent acceleration mechanisms providing 'local' acceleration of charged particles within the earth's magnetosphere and its environs.

Descriptors :   (*UPPER ATMOSPHERE, CHARGED PARTICLES), (*PROTONS, UPPER ATMOSPHERE), (*ELECTRONS, UPPER ATMOSPHERE), VAN ALLEN RADIATION BELT, ENERGY, INTENSITY, SCIENTIFIC SATELLITES, GEOMAGNETISM, PLASMA MEDIUM

Subject Categories : Atmospheric Physics
      Geomagnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE