Accession Number : ADA310809

Title :   Magnetospheric Atmospheric X-ray Imaging Experiment (MAXIE).

Descriptive Note : Final rept. Mar 93-Apr 96,

Corporate Author : LOCKHEED MISSILES AND SPACE CO INC PALO ALTO CA AEROSPACE SCIENCES LAB

Personal Author(s) : Imhof, W. L. ; Voss, H. D. ; Mobilia, J. ; Datlowe, D. W. ; Chinn, V. L.

PDF Url : ADA310809

Report Date : 06 JUN 1996

Pagination or Media Count : 82

Abstract : This report summarizes the activities sponsored by the Office of Naval Research for the Magnetospheric Atmospheric X-ray Imaging Experiment (MAXIE). The MAXIE instrument was developed as a joint activity of Lockheed, The Aerospace Corporation, and the University of Bergen, Norway. Lockheed was responsible for the overall management of the program, interfacing with the appropriate government agencies, the overall electrical and mechanical design, flight software, environmental testing, spacecraft integration activities, on orbit checkout, and data processing activities. The Magnetospheric Atmospheric X-ray Imaging Experiment (MAXIE), the ONR 401 experiment, is the first in a new class of satellite-borne remote sensing instruments. The primary innovation is the ability to obtain rapid, sequential, images with high sensitivity of the earth's X ray aurora from a low altitude polar orbiting satellite. These images can be used to identify dynamic temporal variations in the three-dimensional (energy and position) distribution of electron precipitation into the atmosphere. MAXIE was launched on the TIROS NOAA-13 satellite on 9 August 1993. The experiment performed well during its turn-on sequence; however, the spacecraft bus failed on 21 August 1993. New spacebased technologies successfully used in MAXIE were mixed-mode ASIC microcircuits, a zero torque scanning system with associated viscoelastic damping, a paraffin stow release mechanism, a parallel integrating PHA processor, a low noise Si(Li) seruor telescope, and an advanced thermal cooling system. MAXIE's on orbit operation, control of penetrating particle backgrounds, and scientific data indicated good overall performance.

Descriptors :   *EMISSION SPECTRA, *AURORAE, THERMAL PROPERTIES, COMPUTER PROGRAMS, DATA PROCESSING, TIME INTERVALS, LOW ORBIT TRAJECTORIES, DAMPING, X RAYS, ELECTRONS, PRECIPITATION, REMOTE DETECTORS, INSTRUMENTATION, ENVIRONMENTAL TESTS, MICROCIRCUITS, CHECKOUT PROCEDURES, SPACE BASED, SPACEBORNE, HIGH SENSITIVITY, SCIENTIFIC SATELLITES.

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE