Accession Number : ADA193396

Title :   Solar Flares and Magnetospheric Particles: Investigations Based upon the ONR-602 and ONR-604 Experiments.

Descriptive Note : Annual letter rept. for period ending 30 Nov 87,

Corporate Author : LOUISIANA STATE UNIV BATON ROUGE DEPT OF PHYSICS AND ASTRONOMY

Personal Author(s) : Wefel, John P

PDF Url : ADA193396

Report Date : 10 Feb 1988

Pagination or Media Count : 22

Abstract : Data from the ONR-602 experiment, obtained in a low altitude, polar orbit are being analyzed to investigate the composition, intensity levels and time variations of energetic charged particles both trapped within the Earth's magnetosphere and incident upon the magnetosphere from interplanetary space, particularly solar flare particles. The effort involves both data analysis/interpretation and detailed modeling of the near-Earth environment. The research focusses on the 'global zones' of low energy particle precipitation, including the South Atlantic Anomaly region from which access to the radiation belts is obtained, and the solar particle events of May-Nov., 1982. In addition, scientific/technical support is being provided to the ONR-604 experiment to be launched on the CRRES mission. The results of these investigations will enhance our understanding of the geospace radiation environment and its effects on men, materials and electronic systems in space. The objectives of this research are to investigate the nature and origins of the particle populations in near Earth space by focusing on their spatial distributions, composition, energy spectra and temporal variations and to look at couplings between interplanetary (solar flare generated) and magnetospheric populations. The goal is to understand the Geospace environment in which men and spacecraft must survive and function.

Descriptors :   *MAGNETOSPHERE, *SOLAR FLARES, *COUPLING(INTERACTION), ANOMALIES, CHARGED PARTICLES, DATA PROCESSING, ELECTRONIC EQUIPMENT, ENERGETIC PROPERTIES, ENERGY, GLOBAL, INTENSITY, INTERPLANETARY SPACE, LEVEL(QUANTITY), LOW ENERGY, PARTICLES, POLAR ORBIT TRAJECTORIES, POPULATION, PRECIPITATION, RADIATION, RADIATION BELTS, REGIONS, SOLAR ACTIVITY, SOLAR COSMIC RAYS, SOLAR DISTURBANCES, SOUTH ATLANTIC OCEAN, SPACECRAFT, SPATIAL DISTRIBUTION, SPECTRA, TIME INTERVALS, LOW ORBIT TRAJECTORIES

Subject Categories : Astrophysics
      Geomagnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE