The anomalous background observed by the ALEXIS telescopes
Abstract
The ALEXIS satellite, launched 25 April, 1993 by the Pegasus Air Launched Vehicle, is in a 750×850 km, 70 degree inclination orbit. The six on board telescopes tuned between 66-93 eV were designed to eliminate the geocoronal background either with the He II 304 Å anti-reflection coating on the mirror or filters in front of the detector. Before launch, the telescopes were assumed to be continuously operated with an estimated background counting rate of 10-30 c/s. At first light, it was these assumptions that were proven to be incorrect. This paper presents the results of the study of the anomalous background observed by the ALEXIS telescopes.
- Publication:
-
Workshop on the Earth's trapped particle environment
- Pub Date:
- July 1996
- DOI:
- Bibcode:
- 1996AIPC..383..193R
- Keywords:
-
- 94.30.-d;
- 07.85.Yk;
- 94.80.+g;
- Physics of the magnetosphere;
- Instrumentation for space plasma physics ionosphere and magnetosphere