Calibrated optical data
After the ingestion, an initial processing is performed to calibrate the optical EO data harvested from COS-2 notification and make it ready for further generic processing as a Dataset.
In the Charter Mapper implemented by ESA the calibration of multi-mission optical input products at TOA level is done in systematic and is accomplished during the acquisitions ingestion process.
Optical calibrated Datasets are pre-processed data with phyical meaning (TOA reflectance) which enables a faster thematic processing by applying common operations according to the sensor type.
As a result, in the ESA Charter Mapper multiple Optical Calibrated Dataset are then available for the user and ready for scenario systematic processing and on-demand processing for the creation of different types of output Products.
A general workflow about Optical Absolute Radiometric Calibration is available here.
More details about the radiometric calibration workflow employed for multiple optical mission are available here.