Standard deviation of the residual Stokes I intensities along the frequency direction, after sky-model subtraction and GPR residual foreground removal at 2.5 arcmin resolution incoherently averaged over seven nights per 3 h LST from different regions of (k_⊥, k_‖) space – passing only the data under 5° delay line (first column), between 5° and 20° delay lines (second column), between 20° and 90° delay lines (third column) in the power spectra, respectively. All images are in units of Kelvin. As we show in Fig. 7 LST03-06 and LST06-09 once again show lower residual power compared to other LST bins.