Images obtained at 143 GHz. Each column corresponds to one of four sources. a) The first row displays a zoom of the 143 GHz map around each source. b) The second row shows the FEBeCoP beam at that location, as computed when using the elliptical Gaussian description of the scanning beam derived from Mars observations. c) The third row shows on a logarithmic scale the same Point Spread Functions (PSF) with superimposed iso-contours shown in solid line, to be compared with elliptical Gaussian fit iso-contours shown in broken line. d) The fourth row shows the FEBeCoP beam at that location, as in b), when using instead the Gauss-Hermite description of the scanning beam in input. e) The fifth row shows as in c) the PSF on a logarithmic scale, for the Gauss-Hermite input.