The 'Solar Surveillance' experiment aboard the Signe III satellite
Abstract
The 'Solar Surveillance' experiment is intended to measure the time variation of the solar ultraviolet flux below and above 208 nm in order to separate the radiation originating in the chromosphere from that originating in the photosphere. These measurements will be performed by a quartz prism spectrometer, the two output slits of which define two wavelength regions centered at 185 and 215 nm. A photodiode with a gold cathode serves as detector. The optics and the detector are described along with the absolute calibration methods.
- Publication:
-
5th Conference on Space Optics
- Pub Date:
- 1976
- Bibcode:
- 1976spop.conf..195T
- Keywords:
-
- Chromosphere;
- Photosphere;
- Satellite Observation;
- Solar Flux;
- Ultraviolet Spectrophotometers;
- Aeronomy;
- Calibrating;
- Cathodes;
- Gold;
- Optical Properties;
- Photodiodes;
- Photoelectric Emission;
- Planetary Atmospheres;
- Astronomy