Pseudo-spectrum standard deviation for each instrumental systematic correction shown in Figs. 20–22 (thin colored lines). For comparison, thick black lines show spectra for the full coadded frequency map; thick red lines show the standard deviation of the same (i.e., the full systematic uncertainty); gray lines show white noise; and dashed black lines show the best-fit Planck 2018 ΛCDM power spectrum convolved with the instrument beam. Columns show results for 30, 44 and 70 GHz, respectively, while rows show results for each of the six polarization states (TT, EE, BB, TE, TB, and EB). All spectra have been derived outside the CMB confidence mask presented by Andersen et al. (2023) using the HEALPix anafast utility, correcting only for sky fraction and not for mask mode coupling.