Maps of Stokes I (left), wavelength-integrated linear polarization (LP, middle) and wavelength-integrated circular polarization (CP, right) from a GRIS-IFU scan of a quiet Sun region taken at 07:55:24 UT on the 5 May 2019. Stokes I is normalized by the average continuum. LP and CP are defined in the text. The data shown are reconstructed by the process described in Sect. 3.1.2, and any Stokes parameter with maximum amplitude < σ_t as measured in the continuum of the original level 1 data has been set to zero before computation of LP and CP. The CP map saturates at ±0.004 I_c.