Kernel density estimates of 𝒮-values for all different time resolutions S/N_exp = 50–250 across all SYSREM iterations, seen for the reference case (left) compared to the halved transit duration (middle) case and the halved spectral resolution range (right) using the data presented in Fig. 5. The variances are calculated for each case across all time resolutions at a selected iteration of and across all SYSREM iterations for time resolutions S/N_exp = 50–175 ().