\begin{table}%t3
\caption{\label{tab:Table_scs}SCS flight units performance summary.}
%\centering
\par
\begin{tabular}{cccccccc}
\hline\hline\noalign{\smallskip}
SCS Unit & Warm Rad. & 3 $^{\rm rd}$VGroove &
 \multicolumn{2}{c}{Cold-end $T$(K)}& Heat lift & Input power & Cycle time \\
  & $T$(K)  & $T$(K)  & HFI I/F & LFI I/F  & (mW)  & (V)  & (s) \\
\hline\noalign{\smallskip}
  & 270.5	& 45	& 17.2 & 18.7\tablefootmark{a,b}& 1100 & 297 &	940 \\
 Redundant	& 277	& 60	& 18.0 & 20.1\tablefootmark{a,b}& 1100 & 460
  & 492 \\
  & 282.6	& 60	& 18.4 & 19.9\tablefootmark{a,b}& 1050 & 388  & 667 \\
\hline
Nominal	& 270	& 47	& 17.1 & 18.7\tablefootmark{a}	& 1125 & 304	& 940 \\
    		& 273	& 48	& 17.5 & 18.7\tablefootmark{a}	&
 N/A\tablefootmark{c}& 470	& 525\\
\hline
\end{tabular}
\tablefoot {\tablefoottext{a}{Measured at temperature stabilization assembly (TSA) stage;}
\tablefoottext{b}{in SCS-redundant test campaign TSA stage active control was not enabled;}
\tablefoottext{c}{not measured.}}
\vspace{-3mm}\end{table}