Accession Number : ADA130122

Title :   The Access of Energetic Charged Particles to Satellite Altitudes.

Descriptive Note : Final rept. 1 Jul 80-31 Mar 82,

Corporate Author : TASMANIA UNIV HOBART (AUSTRALIA) DEPT OF PHYSICS

Personal Author(s) : Humble,J E

PDF Url : ADA130122

Report Date : 31 May 1982

Pagination or Media Count : 30

Abstract : The ability of energetic charged particles to arrive at a particular location within the magnetosphere from a particular direction is characterised by the cut-off rigidity for the location and arrival direction. Cut-off rigidities may be obtained either by interpolation between known cut-offs at adjacent sites and/or directions of arrival, or by the numerical integration of appropriate particle trajectories in a suitable numerical model of the geomagnetic field. This report summarizes research on the calculation of cutoff rigidities for a satellite at 400 km altitude. The report is divided into the following sections: General Cut-off Survey, Asymptotic directions of arrival for very high rigidity particles, Cut-off definitions for below-horizon directions, and Largest zenith angle of arrival. A listing of the publications and presentations resulting from this effort is included. (Author)

Descriptors :   *CHARGED PARTICLES, ENERGETIC PROPERTIES, MAGNETOSPHERE, COSMIC RAYS, SATELLITE ATTITUDE, ALTITUDE, ANGLE OF ARRIVAL, INTERPOLATION

Subject Categories : Atmospheric Physics
      Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE