In-Orbit / OperationalTrack 1

Straylight Modelling and Correction for the Infrared Sounder (IRS) on MTG-S

Mr. Guillaume Deschamps

Eumetsat

Day

Friday · 2026-10-16

Time

3:50 PM - 5:30 PM

Track

Track 1

Session

Spectrometer Design & Performance-2

Venue

ICSO 2026 Conference Venue

Hall Track 1Session Spectrometer Design & Performance-2

Track indicates the session hall. Refer to the on-site programme board for the exact room number and any last-minute room changes.

In 30 seconds

The Infrared Sounder on MTG-S employs a straylight model to account for internal reflections and scattering inherent in its Michelson interferometer-based design. Because straylight causes spectral radiance errors through interferogram phase mixing, a comprehensive model was developed to back-propagate and correct these parasitic signals. This approach ensures high-fidelity thermal infrared data delivery from geostationary orbit for international weather centers.

Read the full paper

Access the complete technical paper via the official ICSO 2026 programme.

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Topics & Subtopics

Earth Observation & SpectroscopyCalibrationInstrument PerformanceHyperspectral ImagingAtmospheric SoundingSpectrometersSWIR / InfraredUV / VIS / IR AstronomyThermo-Optics