Telecommunication & Observation
Since 2006, the IASI instrument has equipped European Metop satellites. Its strength: in addition to temperature and humidity, it measures more than 25 atmospheric components with great precision. CNES is working on its "evolution": IASI-NG so that these essential data for weather forecasts, pollution and climate monitoring do not stop.
Comat is developing the mechanical part of the SCan Mechanism (SCM) of the IASING instrument (Infrared Atmospheric Sounding Interferometer, New Generation), which belongs to the series of MetOp- SG satellites (Meteorological Operational Satellite, Second Generation).
This development is performed in collaboration with ADS, in charge of building the IASI-NG instrument (and also of supplying le electronic part of the SCM).
Stop-and-stare motion to scan the Earth (across the spacecraft track)
Continuous motion to offset spacecraft velocity
Mechanical stress during launch
-25°C to +55°C (non-operational)
0°C to 35°C (operational)
Accuracy: ≤ 250 μrad (1σ)
Stability: ≤ 50 μrad (1σ)