Accession Number : ADA130216

Title :   The High Zenith Angle Limits of Cosmic Ray Access to an Earth Satellite.

Descriptive Note : Technical rept.,

Corporate Author : UTAH UNIV SALT LAKE CITY

Personal Author(s) : Cooke,David J

PDF Url : ADA130216

Report Date : Mar 1983

Pagination or Media Count : 22

Abstract : The question of the high zenith angle limits pertaining to access of charged cosmic ray particles of any given rigidity to an earth satellite is an important one to investigators who rely on the presence of the solid earth and atmosphere to screen a satellite from upwards moving particles. The trajectory parameterization method has been used to elucidate the general characteristics of the different kinds of solid angle region that can be distinguished relative to a satellite (or more generally to any given point within the geomagnetic field). These regions are: Those into which particle may be allowed, those into which particles are forbidden because of the local blocking effect of the earth and atmosphere, and those regions into which charged particles may have access via means of long bound or quasi bound periodic trajectories. This report presents some of the phenomenology associated with these regions, and discusses aspects of their latitude, longitude, zenith, azimuth and rigidity dependence. (Author)

Descriptors :   *CHARGED PARTICLES, *SPACE CHARGE, *ARTIFICIAL SATELLITES, COSMIC RAYS, PARTICLE TRAJECTORIES, ANGLE OF ARRIVAL, RIGIDITY

Subject Categories : Atmospheric Physics
      Nuclear Physics & Elementary Particle Physics
      Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE