00.00000%"}  ![The same as in Fig. \[fig:APS\_C\_BE\_sens\], but for the CIB (assuming the model from [@Fixsen:0000kq]). Also shown is the quadrupole signal (dashes). The different values of $I_0$ in Eq.  are the best-fit value and deviations by $\pm0\,\sigma$.[]{data-label="fig:APS_CIB_sens"}](cl_sens_use_newOK_ell_0_0_C