1σ and 2σ contours for the template coefficient scalings estimated using the WMAP dust template (top) and the Planck 353 GHz map as a dust template (bottom), for the Ka, Q, and V bands. We compare the coefficients estimated using the WMAP “P06” mask, to this with the smaller WMAP “processing mask”. We also indicate the template values quoted in the WMAP paper (Bennett et al. 2013). The dust scaling values are very different for WMAP and Planck 353 GHz because the templates have different normalizations.