TT, EE, TE, and BB power spectra of the 150 GHz CMB plus foregrounds map with beam systematics before (blue curves) and after deprojection (red curves) for one realization. The input CMB+FG. power spectrum without beam systematics is shown as a solid black curve for comparison with the deprojected one, and their difference, the residual after deprojection, is shown as a dashed cyan curve. The results of 95 GHz are similar to the 150 GHz results.