Spectra (left) and per-survey and per-RCA measurements (right) for Orion A (top), Cas A (middle) and Tau A (bottom). For the spectra, the flux densities measured using aperture photometry are shown for LFI and WMAP, as well as the best-fitting power-law to the measurements (solid line) and a ±1% range (dotted line). The fit and data points from Weiland et al. (2011) are shown for Cas A and Orion A, and the Planck Catalogue of Compact Sources (PCCS) flux densities for all three sources are shown. For the per-RCA measurements, RCAs 18−23 are at 70 GHz, 24−26 at 44 GHz and 27−28 at 30 GHz. For each RCA, the average from the three surveys is shown, followed by the measurements from each survey.