Correction of the distribution shown in Fig. 6 for the square of the resolution factor θ_lim/θ_comp. The corrected T_b,lim distribution is statistically very close to the T_b,mod obtained from the model-fitting analysis. The values of T_b,lim are on average 40% higher than the respective values of T_b,mod. This is also demonstrated by the residual logarithmic distribution of the T_b,lim/T_b,mod ratio (inset), which can be approximated by the Gaussian PDF with μ = 0.16 and σ = 0.66.