\begin{table} 
      \caption {\label{tab:summary_cryofacility_thermal_performance}LFI cryo-facility thermal performance.}
            %\centerline
 {   \begin{tabular}{l c c}
            \hline
            \hline
            \noalign{\smallskip}
		        &Avg. Temp. (K)	&Stability (K)\\
            \hline
	            Sky load	        &18--35	&0.10\\
	            Focal plane unit	&26	&0.03\\
	            Reference loads	&22	&0.08\\
	            Back end unit	&315	&0.65 \\
            \hline
         \end{tabular}}
\tablefoot {
The temperature stability listed in the second column refers to the measured peak-to-peak during one day. }
\par
   \end{table}