Accession Number : ADP002111

Title :   Interactions between a Large Body and Its Environment in a Low Polar Orbit,

Corporate Author : EUROPEAN SPACE RESEARCH AND TECHNOLOGY CENTRE NOORDWIJK (NETHERLANDS) SPACE SCIENCE DEPT

Personal Author(s) : Grard,R. ; Knott,K. ; Pedersen,A.

Report Date : 25 JAN 1983

Pagination or Media Count : 10

Abstract : The parameters that characterize the high latitude ionosphere are reviewed. The electron current density collected by a surface is evaluated in typical environments and is compared to the emitted flux of photoelectrons. The polarity and order of magnitude of the relative surface potentials are tentatively estimated for various situations: sunlight, shadow, and eclipse. Other types of interactions encountered by large structures, such as magnetic induction effect and plasma instability triggering, are also discussed. (Author)

Descriptors :   *Electrostatic charge, *Low orbit trajectories, *Spacecraft, *Interactions, High latitudes, Ionosphere, Electron density, Electron flux, Photoelectrons, Plasmas(Physics), Charged particles, Magnetic induction

Distribution Statement : APPROVED FOR PUBLIC RELEASE