Accession Number:

ADA169010

Title:

Magnetospheric Plasma Studies Using Data from the Dynamics Explorer High and Low Altitude Plasma Instruments.

Descriptive Note:

Final rept. 15 Apr 82-31 Dec 85,

Corporate Author:

SOUTHWEST RESEARCH INST SAN ANTONIO TX

Personal Author(s):

Report Date:

1986-02-01

Pagination or Media Count:

83.0

Abstract:

The reported research focused primarily upon plasma processes in and near the plasma cusp. The following areas were studied plasma injection and transport in the mid-altitude polar cusp observations of counterstreaming electrons at high altitudes observations of upward electron beams and their relationship to region 1 Birkeland currents observations of the electron population responsible for the 6300A SAR arc emission, polar rain observations polar wind observations and observations of ion and electron acceleration events produced by parallel electric fields. The primary observing platform for the research reported here was Dynamic Explorer 1 DE-1. The DE-1 High Altitude Plasma Instrument HAPI consists of five electrostatic analyzers mounted in a fan-shaped angular array at angles of 45, 78, 90, 102, and 135 deg. with respect to the spacecraft spin axis. Each analyzer makes differential measurements of electrons and positive ions over an energycharge range of 5 eVe to 32 keVe. Energy stepping proceeds at commandable rates of up to 64 sec, providing three-dimensional plasma distribution functions at the six second spin rate or DE-1.

Subject Categories:

  • Atmospheric Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE