Customer: European Space Agency (ESA)

Programme: Copernicus

Supply Chain: ESA > CS Group SPACE

Context

CS Group responsabilities for Radiometric Calibration Expertise Support for Opt-MP-S2 are as follows:

• Guarantee the quality of the radiometric calibration parameters
• User support

The features are as follows:

• Obscuity current monitoring :
• Night acquisitions on Oceans.
• Analysis of the stability of the pixel of darkness by pixel and spectral band. Monitoring of radiometric sensitivity and inter-pixel response :
• Sun-Diffuser image processing.
• Analysis of equalization variations (FPN).
• Followed by the evolution of the absolute calibration coefficients of S2A and S2B.
• Method’s sensitivity analysis. Defective pixel monitoring :
• Identification of defective pixels (aberrants or buries).
• Definition of the Pixels SWIR reselection configuration, monitoring of results on board.

Project implementation

The project objectives are as follows:

• Ensure the expertise of radiometric monitoring of MSI Sentinel-2 sensors
• Support for the evaluation and improvement of radiometric calibration methods

The processes for carrying out the project are:

• Study, regular meetings

Technical characteristics

The solution key points are as follows:

• Use of MPA treatment codes (Mission Performance Assessment).
• Stability analysis modules.

The main technologies used in this project are:

Domain	Technology(ies)
Operating System(s)	Linux
Programming language(s)	Python