Customer: European Space Agency (ESA)

Programme: Copernicus

Supply Chain: ESA > CS Group SPACE

Context

CS Group responsabilities for Radiometric Calibration expertise support for the OPT-MPC-S2 are as follows:

• Guarantee the quality of radiometric calibration parameters
• User Support

The features are as follows:

• Dark Current Tracking :
• Night acquisitions on oceans.
• Analysis of dark current stability per pixel and spectral band. Monitoring radiometric sensitivity and inter-pixel response :
• Sun-diffuser image processing.
• Analysis of equalization variations (FPN).
• Monitoring the evolution of the absolute calibration coefficients of S2A and S2B.
• Sensitivity analysis of the method. Bad Pixel Tracking :
• Identification of defective pixels (aberrant or noisy).
• Setting SWIR pixel reselection configuration, monitoring results on board.

Project implementation

The project objectives are as follows:

• Ensure expertise in 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 (Mission Performance Assessment) processing codes.
• Stability analysis modules.

The main technologies used in this project are:

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