SPT maps and background templates of PSZ2 G271.18-30.9. The upper and medium panels show the raw maps and the cleaned maps, respectively, of the 95 GHz (left), 150 GHz (centre), and 220 GHz (right) channels. In the lower panels, we show the CMB reconstruction: the full template (left), the lower spatial frequency reconstruction (centre), and the high spatial frequency reconstruction (right). The red circles mark r₅₀₀ and the black circles represent the SPT beam FWHM. The map size is 6r₅₀₀ × 6r₅₀₀ and the axes show the distance from the cluster centre in arcmin. The pixel size is 0.5 arcmin.