Fig. A.1

Left: uv coverage in a single channel at 250 GHz. Right: dirty beam for the 250 GHz continuum. Color scale shows the intensity or sensitivity normalized to 1.0 and is clipped to 0.1 to show the side lobe structure. First side lobe maximum and minimum are at 0.12 and –0.05, respectively, and located in the inner 5′′. White contour outline the CS(5–4) (solid) and 250 GHz continuum (dashed) primary beam at 10% sensitivity (FOV10).
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