Notes. Total effective integration time (hours per unit solid angle of one square degree), in intensity and in polarisation, achieved in each region after data flagging for each channel in the nominal mode (n) and in the combination of nominal plus raster scans (n+r), and final map sensitivities in Stokes I, Q and U maps calculated through a null test analysis (see text for details). The first digit of the channel identifier refers to the horn index and the next two digits indicate the frequency.