# Stray Light Correction Services
*analysis-service . products*

Stray Light Correction Services are cosine's algorithm and calibration services for characterising and correcting stray light in spectral Earth-observation instruments.

## Specifications
- **product status**: operational
- **manufacturer**: cosine
- **analysis service**: {"processing_capabilities":["stray-light characterisation","stray-light correction","spectral calibration support","Earth-observation instrument data correction"]}
- **deployment context**: ground
- **entity type**: analysis_service
- **last verified date**: 2026-06-10
- **verified by**: sw
- **claim status**: unclaimed
- **provider**: cosine
- **attributes**: {"kind":"analysis-service","product_status":"operational","manufacturer":"cosine","description":"Stray Light Correction Services are cosine's algorithm and calibration services for characterising and correcting stray light in spectral Earth-observation instruments.","sensor":null,"bus":null,"ground_segment":null,"launcher":null,"analysis_service":"{\"processing_capabilities\":[\"stray-light characterisation\",\"stray-light correction\",\"spectral calibration support\",\"Earth-observation instrument data correction\"]}","deployment_context":"ground"}
- **relevance**: ancillary

## Editorial
Stray Light Correction Services is an algorithm and calibration service from cosine for characterising and correcting spectral stray-light contributions in Earth observation instruments. The service operates at the instrument level, applying spectral point-spread function deconvolution to raw detector data to improve radiometric and spectral accuracy before geophysical retrievals are performed.[^cosine-stray-light-search] cosine has applied the technique to operational EO instruments including TROPOMI-SWIR[^amt-tropomi-stray] and the Metop-3MI imager[^mdpi-metop-3mi], with further application to Sentinel-4/UVN reported. The service targets instrument developers, space agencies, and system integrators who require stray-light characterisation during instrument calibration or who need in-orbit correction algorithms embedded in their processing chains.[^cosine-stray-light-search] Whether the service is offered as a standalone commercial contract or exclusively within instrument development programmes has not been confirmed from publicly available sources.[^cosine-stray-light-search]

## Sources
- [cosine-stray-light-search] | cosine Products and Services page | https://www.cosine.nl/products-and-services/ | tier=operator-marketing | accessed=2026-06-10
- [mdpi-metop-3mi] | Stray Light Correction Algorithm for High Performance Optical Instruments: The Case of Metop-3MI - Remote Sensing MDPI 2022 | https://www.mdpi.com/2072-4292/14/6/1354 | tier=peer-reviewed | accessed=2026-06-10
- [amt-tropomi-stray] | Characterization and correction of stray light in TROPOMI-SWIR - Atmos. Meas. Tech. 2018 | https://amt.copernicus.org/articles/11/4493/2018/ | tier=peer-reviewed | accessed=2026-06-10

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Source: https://eo-atlas.org/products/analysis-service/stray-light-correction-services
Maintainer: SpectraWorks B.V. (CC-BY 4.0)