The ICON Far Ultra-Violet Imager
Abstract
The ICON spacecraft carries a Far Ultra-Violet Imager (FUV) as a remote sensing instrument in order to measure altitude profiles of the day-time atmosphere and night-time ionosphere. FUV is a Czerny-Turner type Spectrographic Imager with two exit slits and corresponding back imagers that produce two independent images in separate wavelength bands. During daytime, FUV measures altitude profiles of the oxygen atom 135.6 nm emission and the molecular nitrogen LBH emission around 157 nm in order to determine the atmospheric O/N2 composition. During nighttime the 135.6 nm emission comes from O+ recombination and is used to determine the nighttime ionospheric altitude distribution. We will present the main design features of the instrument and discuss the different data products. ICON is scheduled for launch in fall of 2018.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2018
- Bibcode:
- 2018AGUFMSA21A3150F
- Keywords:
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- 0355 Thermosphere: composition and chemistry;
- ATMOSPHERIC COMPOSITION AND STRUCTUREDE: 2427 Ionosphere/atmosphere interactions;
- IONOSPHEREDE: 7894 Instruments and techniques;
- SPACE PLASMA PHYSICSDE: 7959 Models;
- SPACE WEATHER