\begin{table}%t7
        %\centering
\par
            \caption{\label{tab:knee_fequency_slope}Summary of knee frequency and slope.            }
\par
                            \begin{tabular}{l c c c c}
                \hline
                \hline
                \noalign{\smallskip}
		        &\multicolumn{4}{c}{$f_{\rm knee}$ (mHz)}\\	      
		        &\textbf{M-00} 
		        &\textbf{M-01} 
		        &\textbf{S-10} 
		        &\textbf{S-11} \\
		        \hline
                \textbf{70~GHz}  &   &   &   &  \\       
		        LFI18	&$\ldots$ &$\ldots$ &61 &59\\
		        LFI19	&25 &32 &27 &37\\
		        LFI20	&21 &19 &23 &28\\
		        LFI21	&28 &30 &41 &38\\
		        LFI22	&46 &39 &41 &76\\
		        LFI23	&30 &31 &58 &75\\
                \textbf{44~GHz}  &   &   &   &  \\       
		        LFI24	&$\ldots$ &$\ldots$ &39 &46\\
		        LFI25	&31 &31 &21 &30\\
		        LFI26	&61 &61 &61 &14\\
                \textbf{30~GHz}  &   &   &   &  \\       
		        LFI27	&30 &30 &27 &26\\
		        LFI28	&37 &31 &37 &39\\
                                \end{tabular}
\par
            \begin{tabular}{l c c c c}
                \hline\hline
		        &\multicolumn{4}{c}{slope}\\	
		        &\textbf{M-00} 
		        &\textbf{M-01} 
		        &\textbf{S-10} 
		        &\textbf{S-11} \\
                \hline
                \textbf{70~GHz}  &   &   &   &  \\       
	            LFI18	&$\ldots$	&$\ldots$	&$-$1.12	&$-$1.12\\
	            LFI19	&$-$1.27	&$-$1.22	&$-$1.11	&$-$1.02\\
	            LFI20	&$-$1.47	&$-$1.64	&$-$1.27	&$-$1.24\\
	            LFI21	&$-$1.48	&$-$1.61	&$-$1.15	&$-$1.17\\
	            LFI22	&$-$1.18	&$-$1.26	&$-$1.19	&$-$1.01\\
	            LFI23	&$-$1.11	&$-$1.19	&$-$1.15	&$-$1.12\\
                \textbf{44~GHz}  &   &   &   &  \\       
	            LFI24	&$\ldots$	&$\ldots$	&$-$1.06	&$-$1.11\\
	            LFI25	&$-$1.07	&$-$1.03	&$-$1.10	&$-$1.00\\
	            LFI26	&$-$1.01	&$-$1.01	&$-$1.05	&$-$1.55\\
                \textbf{30~GHz}  &   &   &   &  \\       
	            LFI27	&$-$1.06	&$-$1.13	&$-$1.25	&$-$1.13\\
	            LFI28	&$-$0.94	&$-$0.93	&$-$1.07	&$-$1.06\\
                \hline
                \end{tabular}
\par
       \vspace{-2mm}\end{table}