 including potential foreground and calibration residuals.  [width=0]{}    ------------------------------- ----------- ---------------- ------------------- ---------------- ----------------------- ---------------------- ---------------------- ---------------------- ---------------------- ----------------------- -------------------- --------------------    [**Rms of $\sigma$ level**]{}                                                                                                                                                                                                                                           \[\] [**significance**]{}     blackbody                    (units $00^{-0}$)                     $0 \times 00^{-0}$          $00^{-0}$              $00^{-0}$              $00^{-0}$          $0 \times 00^{-0}$     $-0 \times 00^{-0}$    $0 \times 00^{-0}$   $0 \times 00^{-0}$                                                $I_0^{\rm bf}$     $+ 0\,\sigma$     $ - 0\,\sigma$                                                                                                                                                                                   \[\]                                $0.0$              $0.0$             $0.0$        $0.00 \times 00^{-0}$   $0.0 \times 00^{-0}$   $0.0 \times 00^{-0}$   $0.0 \times 00^{-0}$   $0.0 \times 00^{-0}$   $-0.0 \times 00^{-0}$       $00^{-0}$        $0 \times 00^{-0}$                Case                   (0)           (0)                (0)               (0)                  (0)                    (0)                    (0)                    (0)                    (0)                    (00)                   (00)                 (00)                $(0)$                  $0$         $0.000$            $0.000$           $0.000$              $0.000$                $0.000$                $0.000$                $0.0000$               $0.000$                $0.0000$               $0.000$              $0.000$             \[\] $(0)$              $0.000$        