as flux calibrators (see Section \[cal\]). The RMS noise of each map was calculated based on the statistics of the off-source regions of the maps.

Data Reduction and Calibration {#reduction}
==============================

Data Reduction {#subreduction}
--------------

All of the raw scans were reduced with the Comprehensive Reduction Utility for SHARC-II (CRUSH), a publicly available[^5], Java-based software package. CRUSH iteratively solves a series of models that attempt to reproduce the observations, taking into account both instrumental and atmospheric effects (e.g., Beelen et al. 2006). To first order, sky emission is subtracted by removing emission common to all bolometers (see Enoch et al. 2006 for a discussion of this process in relation to the Bolocam bolometer array at the CSO). Observations obtained through the end of 2004 were reduced with version 1.35 of CRUSH, while observations taken in 2005 were reduced with version 1.40a9-2. We tested the two versions by reducing several sources with both version 1.35 and version 1.40a9-2 and found the results to be consistent between the two versions of the reduction software.

As mentioned above, the Lissajous scan pattern results in a map with less integration time per pixel as the distance from the center of the map increases. Thus, 