in Jy divided by the flux density in the same aperture of that calibrator in the instrument units. Since CRUSH includes an atmospheric correction, the flux density of a source in a given aperture is then obtained by simply multiplying the flux of the source in that aperture, in the instrument units, by the FCF for that aperture. A set of standard apertures is adopted for all of the papers presenting complementary millimeter and submillimeter data to the c2d project: 20, 40, 80, and 120. Only the two smallest apertures, 20$\arcsec$ and 40$\arcsec$, are used for this survey since these observations are not sensitive to large-scale, smoothly varying extended emission (see §\[2sig\] and §\[models\]). We used Starlink’s “aperadd” package to measure the flux densities in instrument units in these apertures for both the sources and the calibrators.

In addition to the aperture FCFs, C$_{20}$ and C$_{40}$, we also calculate C$_{beam}$, the FCF for one beam (necessary for expressing both the peak flux of each source and the 1$\sigma$ RMS of the maps in units of Jy beam$^{-1}$). Similar to the aperture FCFs, we calculated C$_{beam}$ by dividing the flux density of a calibrator in one beam by the value of 