Comparing the input flux data points (errorbars) and the predicted fluxes by magphys (grey regions referring to 1σ, 2σ, and 3σ confidence intervals in the bottom panel). The best fit model from the magphys analysis is shown as a grey solid line. The best-fit models from the modified black body fitting are shown as red (optically-thick case) and blue (optically-thin) solid lines. The bottom panel shows the flux ratios with respect to the 50% quartile of the flux PDF at a given band.