This IPF version included baseline AATSR processing, plus the first version of the AATSR Land Surface Temperature (LST) retrieval in the ATS_NR__2P product.
This update involved a change to the facility responsible for setting the REF_DOC field in the MPH of the data (from PFHS to IPF) and a change to the internal handling of CFI warning messages. Neither of these changes had any impact on the format or content of the products.
New ATS_PC1_AX file introduced with revised solar irradiance data (which were then carried through into the VISCAL GADS in the output L1b data).
Revised ATS_GC1_AX file introduced, to correct a problem in the application of the 1.6 micron non-linearity correction
Daily ATS_VC1_AX files were modified to account for long-term visible channel drift.
Revised SST retrieval coefficients were introduced in ATS_SST_AX.
The retrieval coefficients previously in use were based on the same atmospheric spectroscopy as was originally used for ATSR-1 and ATSR-2, which pre-dated more recent releases of the HITRAN molecular spectroscopy database. The new set of retrieval coefficients were based on the HITRAN 2000 database.