\begin{table}%t4
        %\centering
\par
	    \caption{\label{tab:basic_calibration_temperatures}Main temperatures during basic calibration.}
\par
	        \begin{tabular}{c c c c c}
	        \hline  
	        \hline\noalign{\smallskip}
	        Step \# &  $T_{\rm sky}$(K) & $T_{\rm ref}$ (K) & $T_{\rm FEU}$ (K)& $T_{\rm BEU}$ (C)\\
	        \hline
	        1       &   22.05        &   22.34       &    26.40      &    37.53      \\
	        2       &   28.96        &   22.20       &    26.45      &    37.48      \\
	        3       &   32.91        &   22.32       &    26.40      &    37.67      \\
	        \hline
	        \end{tabular}
\par
        \end{table}