\begin{table}%T4
\caption{Summary of identifications and classifications.}
\label{class}
%\centering
\par
\begin{tabular}{llrr}
\hline
\hline\noalign{\smallskip}
\multicolumn{1}{c}{Source type} & 
\multicolumn{1}{c}{Selection criteria} &
\multicolumn{1}{c}{identified} &
\multicolumn{1}{c}{classified}  \\ 
\noalign{\smallskip}\hline\noalign{\smallskip}
fg Star & ${\rm log}({{f}_{\rm x} \over {f}_{\rm opt}}) < -1.0$ and $HR2 - EHR2 < 0.3$ and $HR3 - EHR3 < -0.4$ or not defined & 6 & 90 \\
AGN  &  Radio source and not classification as SNR from $HR2$ or optical/radio & 1 & 36 \\
Gal  &  optical id with galaxy  & 1 &  \\
GCl  &  \mbox{X-ray} extent and/or spectrum &1 &1\\
SSS  &  $HR1 < 0.0$, $HR2 - EHR2 < -0.99$ or $HR2$ not defined, $HR3$, $HR4$ not defined &   &  18 \\
SNR  &  $HR1 > -0.1$ and $HR2 <-0.2$ and not a fg Star, or id with optical/radio SNR   & 21 & 23 \\
GlC  &  optical id & 27 & 10 \\
XRB  &  optical id or \mbox{X-ray} variability  & 7 & 9 \\
hard &  $HR2 - EHR2 > -0.2$ or only $HR3$ and/or $HR4$ defined, and no other classification&  & 567 \\
\hline
\end{tabular}
\end{table}