\begin{table}%t3
 \caption{{OFS with a spectroscopic
 redshift in the CDF-S.}\label{table:optfaintS}}
%\begin{center}
{\begin{tabular}{rcccccclccc}
\hline 
\hline 
{XID$^{a}$} & {CXO CDFS$^{b}$} &
 {$R^{c}$} & {$R-K^{d}$} &
 {$z^{e}$} & {$Q^{f}$} & {Opt$^{g}$} &
 {X-ray$^{h}$} & {FS$^{i}$}
 &{FH$^{j}$} & {HR$^{k}$}  \\ 
\hline
\noalign{\smallskip}
{45} & {J033225.8$-$274306} & {25.3} & {5.1} & {2.291} & {1} & {LEX} & {QSO abs} &{$1.02\pm0.08$} & {$4.67\pm0.46$} & {$-0.12\pm0.06$}  \\
{54} & {J033214.7$-$275422} & {25.7} & {$<$5.4} & {2.561} & {3} & {HEX} & {QSO abs} & {$0.61\pm0.07$} & {$3.37\pm0.46$} & {$-0.01\pm0.09$}  \\ 
{117} & {J033203.1$-$274450} & {25.5} & {4.9} & {2.573} & {3} & {HEX} & {AGN abs} & {$0.61\pm0.07$} & {$1.19\pm0.34$} & {$-0.52\pm0.11$} \\
{263} & {J033218.9$-$275136} & {25.3} & {5.1} & {3.660} & {3} & {HEX} & {QSO abs} & {$0.10\pm0.04$} & {$1.23\pm0.31$} & {$+0.35\pm0.20$} \\
{265} & {J033233.4$-$274236} & {$>$26} & {$>$5.2} & {1.215$^m$} & {1} & {LEX} & {AGN abs} & {$0.19\pm0.05$} & {$3.33\pm0.45$} & {$+0.50\pm0.11$} \\
{606} & {J033225.0$-$275009} & {25.3} & {4.3} & {1.037} & {1} & {LEX} & {AGN abs} & {$<$0.06} & {$1.25\pm0.30$} &  {$+0.68\pm0.19$} \\
\hline 
\end{tabular} }

{$^a$ XID from Giacconi et~al. (\cite{giacconi02}).} \\
{$^b$ IAU registered name, based on original X-ray coordinates.}\\ 
{$^c$ Vega $R$ magnitude for the optical counterpart.} \\ 
{$^d$ Vega $R-K$ colour for the optical counterpart.}\\ 
{$^e$ Optical spectroscopic redshift for the optical counterpart (Szokoly et~al. \cite{szokoly04}).}\\
{$^f$ Quality flag of the optical spectrum (see Szokoly et~al. \cite{szokoly04}).}\\
{$^g$ Optical classification (see Szokoly et~al. \cite{szokoly04}).} \\ 
{$^h$ X-ray classification.} \\
{$^i$ Flux in soft (0.5--2 keV) band, in units of $10^{-15}$ erg cm$^{-2}$ s$^{-1}$.}\\ 
{$^j$ Flux in hard (2--10 keV) band, in units of $10^{-15}$ erg cm$^{-2}$ s$^{-1}$.}\\
{$^k$ Hardness ratio, defined as (H$-$S)/(H$+$S) where H and S are the net counts in the hard and soft bands, respectively.}
%\end{center}
\end{table}