Accession Number : AD0673475

Title :   LOW ENERGY SOLAR COSMIC RAY LATITUDE INTENSITY STRUCTURE AND PITCH ANGLE DISTRIBUTIONS AT LOW ALTITUDE,

Corporate Author : AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Personal Author(s) : Blake,J. B. ; Paulikas,G. A. ; Freden,S. C.

Report Date : MAR 1968

Pagination or Media Count : 32

Abstract : Solar protons (1.1 - 1.6 MeV) and alpha particles (4.1 - 15 MeV) were observed over the polar caps associated with the proton event of 28 August 1966. Persistent latitudinal structure in the proton flux was observed. Ordering of the structure by magnetic latitude over both polar caps during a given orbit shows that it is a spatial effect associated with non-uniform access of solar protons to high latitudes. Examples of the latitudinal structure are shown. Pitch angle distributions were observed, which clearly delineated a region of quasi-trapping; the changes in the pitch angle distributions during a representative pass as the spacecraft, 1966-70A, traversed the region of quasi-trapping are shown. No evidence for the durable containment of the quasi-trapped solar alpha particles was observed. (Author)

Descriptors :   (*COSMIC RAYS, MEASUREMENT), (*SOLAR FLARES, CHARGED PARTICLES), POLAR REGIONS, COSMIC RAY TELESCOPES, SCIENTIFIC SATELLITES, ALPHA PARTICLES, PROTONS, GEOMAGNETISM

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE