Residuals for the Gaia stars as a function of color indices for the P26 and PNA satellite location areas. Red semi-transparent spans show the color indices of the main Saturnian satellites (the thin band at the G_BP − G_RP ≈ 1.9 mag represents Titan’s color). The (B–V) values for the Saturnian satellites were taken from Cruikshank (1978). They were converted to the Gaia color system according to Jordi et al. (2010). Color maps show the distribution of the differences over the color. Blue represents the number of differences in each bin, as indicated by the color bar.