\begin{table}%t4
 \caption{Effect of a random relative calibration error $\ErrPatch = 1\%$   on the \Ef~determination at different \Planck~frequencies.  Column~2 is the minimum rms~error for the optimal surface brightness cut reported in Col.~3. Columns~4 and~5 give the range for which the rms~error is 
 less than twice the value in Col.~2.}\label{Tab:Ef:Calibration:Error} 
 %\centering
\small
 \begin{tabular}{ccccc}
 \hline
 \hline
 \multicolumn{1}{c}{Freq} &
 \multicolumn{1}{c}{Minimum $\Delta \Ef$} &
 \multicolumn{1}{c}{Optimal \Gcut} &
 \multicolumn{1}{c}{Min. \Gcut} &
 \multicolumn{1}{c}{Max. \Gcut} 
 \\
 \multicolumn{1}{c}{[GHz]} &
 \multicolumn{1}{c}{} &
 \multicolumn{1}{c}{[MJy/sr]} &
 \multicolumn{1}{c}{[MJy/sr]} &
 \multicolumn{1}{c}{[MJy/sr]} 
 \\
 \hline
 857 & 0.022 & 6.5 & 2.3 & 26 \\
 545 & 0.017 & 2.0 & 1.0 & 8.3 \\
 353 & 0.011 & 0.50 & 0.20 & 2.0 \\
 \hline
 \end{tabular}
 \end{table}