Mission products

The TRUTHS core and downstream products to the Users will consist of:

• L1B geolocated and calibrated Earth TOA radiances over land and sea with uncertainty summary, available on a rolling archive;

• L1B geolocated and calibrated Earth TOA radiances over land and sea with full uncertainty description, including covariance matrix, available on-demand;

• L1B calibrated Total Solar Irradiance (TSI) and Spectral Solar Irradiance (SSI), with uncertainty estimates, on daily basis;

• L1B calibrated Lunar Spectral Irradiance (LSI), with uncertainty estimates, on weekly basis;

• L1C calibrated TOA radiance over land and sea, projected on a regular spatial grid (Sentinel-2 MRGS UTM), on homogeneised (e.g. smile-corrected) spectral grid, available on a rolling archive;

• L2 Surface reflectance over land and ocean, including atmospheric correction by-products (e.g. aerosol, TCWV) on same spectral and spatial sampling as L1C products;

• Monthly and annual TOA averages, on variable spatial grids, for climate applications;

• Spatio-temporal coincidence database with third missions;

• Sensor-to-sensor calibration match-up and correction coefficients with selected missions for demonstration;

• L3 top and bottom of the atmosphere BRDF for selected pseudo-invariant vicarious calibration sites.