Degeneracies in T_dust and β_RJ. The knife jacking method allowed us to estimate whether the characteristics of the dust emission, i.e., T_dust and β_RJ, vary when removing and adding back individual galaxies from the sample used to build the composite template. The ellipses show the uncertainties. The outlier point at β_RJ ∼ 1.1 and T_dust ∼ 51 K was obtained when taking off HZ10 at z = 5.659 with five pieces of data in the far-IR+submm range. Only when removing it did the average locus move to slightly larger values of β_RJ, but with larger uncertainties.