Five different auxiliary files are associated with L2P processing:

• The SLSTR L2 L2P SST Algorithms data file contains the SST algorithm code to be used to combine dust, aerosol present, swath centre or edge, and daylight in the nadir and oblique views. It also contains the latitude range over which aerosol may be present.
• The SLSTR L2 SDI3 Saharan Dust Index Coefficients data file contains the coefficients required to retrieve a three-channel, single view Saharan dust index.
• The SLSTR L2 SDI2 Saharan Dust Index Coefficients data file contains the coefficients required to retrieve a two-channel, dual view Saharan dust index
• The SLSTR L2 SSES data file contains tabulated estimates of the biases and standard deviations of SLSTR L2P SSTs derived from comparisons with independent SST measurements.
• The SLSTR L2 L4 SST Analysis data file is used by the SLSTR Level-2 processor as reference for a quality indicator in the L2P SST dataset. SST climatology is also encoded as an alternative source of SST information when the L4 analysis file is not available.