Comparison of TGE and GSP-Phot extinction estimates A₀ limited to giant stars. We calculated the mean extinction astrophysical_parameters.azero_gspphot per healpix level 9 to compare to the TGE optimised map total_galactic_extinction_map.a0. We partially included the TGE tracer selection: 3000 < teff_gspphot < 5700 K and −10 < mg_gspphot < 4 mag (we did not filter out based on distances). This represents 21 244 458 and 9 271 775 stars for the MARCS and PHOENIX library, respectively.