Detector relative contribution weight factor maps in Galactic coordinates for the 857 GHz detectors, i.e., w_m,i as defined in Eq. (6). The left half represent the nominal survey a), c), e), and g), while the right half represent the survey 1 subset of the data (b), d), f), and h)). Data corresponding to detectors 1 through 4 are grouped in rows, i.e., 857-1 is illustrated in a), b), and 857-2,-3, and -4 are found in c), d), e), f), and g), h), respectively. The grey shaded regions indicate where there was no sky coverage.