\begin{table}%t3
\caption{\label{tab:at}Results of the two artificial-star tests.}
\small%\centerline
 {
\begin{tabular}{cccccccc}
\hline
\hline
Field & $({N_{\rm bMS}}/{N_{\rm rMS}})_{\rm ins.}$ &
        $({\sigma_{\rm bMS}})_{\rm ins.}$ & $({\sigma_{\rm rMS}})_{\rm ins.}$ &
        $({N_{\rm bMS}}/{N_{\rm rMS}})_{\rm rec.}$ & 
        $\sigma(N_{\rm bMS}/N_{\rm rMS})_{\rm rec.}$ &
$({\sigma_{\rm bMS}})_{\rm rec.}$ & $({\sigma_{\rm rMS}})_{\rm rec.}$ \\
\hline
\multicolumn{7}{c}{TEST1}\\
central & 1.000 & 0.000 & 0.000 & 0.946 & 0.013 & 0.013 & 0.013\\
corner  & 1.000 & 0.000 & 0.000 & 0.992 & 0.013 & 0.009 & 0.009\\
\multicolumn{7}{c}{TEST2}\\
central & 1.000 & 0.021 & 0.016 & 1.008 & 0.079 & 0.026 & 0.021\\
corner  & 1.000 & 0.016 & 0.013 & 0.996 & 0.027 & 0.019 & 0.016\\
\hline
\end{tabular}}
\medskip
For each of the two fields (first column), we give in Cols.~2$-$4 the values of \nbr\ for the AS that were inserted, and the color dispersions that were given to the AS that were put on the bMS and rMS, respectively. In Cols.~5$-$8 are, respectively, the \nbr\ of the AS that were recovered, with error, followed by the sigmas of the two Gaussians that were fitted to them.  See text for details.
\vspace*{3mm}
\end{table}