The objective of SLSTR Level-1 processing is to derive a data product containing calibrated, geolocated brightness temperatures for the thermal channels, and radiances for the short wave, near infrared, and visible channels, together with appropriate annotation data, in particular quality and classification flags as well as useful meteorological parameters. These form the starting point of the Level-2 algorithms for retrieval of geophysical parameters such as surface temperature.

Overall SLSTR Level-1 processing flow chart