Accession Number : AD0748614

Title :   Observations of Galactic Cosmic Ray Intensity from 1.0 to 2.0 a.u. Heliocentric Radial Distance,

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

Personal Author(s) : Van Allen,James A.

Report Date : 12 AUG 1972

Pagination or Media Count : 12

Abstract : From observations with the Jupiter-bound spacecraft Pioneer 10 it is found that the integral intensity of the galactic cosmic radiation (E(p) > 80 MeV) varied by less than 3% (either + or -) over the heliocentric radial range 1.0 to 2.0 a. u. during the epoch March-July 1972. (Author)

Descriptors :   (*COSMIC RAYS, SPACE ENVIRONMENTS), INTENSITY, CORRELATION TECHNIQUES, SUNSPOTS

Subject Categories : Astrophysics

Distribution Statement : APPROVED FOR PUBLIC RELEASE