The Upper Atmosphere Composition Spectrometer.
AEROSPACE CORP EL SEGUNDO CA SPACE SCIENCES LAB
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The Upper Atmosphere Composition Spectrometer UACS was flown on the DOD Space Test Program mission S85-1. This report describes the instrument and its operation. The Upper Atmosphere Composition Spectrometer employs a conventional quadrupole mass filter with a semiopen ionization chamber and a special dual detector system for a large dynamic measurement range. In addition to measuring neutral gas composition for masses 4 to 48, UACS performs a retarding potential analysis of the incident neutral gas stream to measure atmospheric temperature and one component of the neutral wind. Examples of its operation in orbit are discussed. Keywords Atmospheric Composition Neutral Mass Spectrometers Satellites Wind Temperature.
- Atmospheric Physics