\begin{table}%t1
\caption{\label{tab_photom}NIR and optical photometry of the single counterpart.}
%\centerline
{\small \begin{tabular}{c c c c}
\hline\hline       
Date & \multicolumn{3}{c}{2007--03--05T01:27--02:00}\\
Filters & $J$ & $H$ & \Ks \\
\hline
Mag.$^\diamond$ & $15.2 \pm0.1$ & $13.66\pm0.03$ & $12.3 \pm0.2$\\
$Z_{{\rm p}}$ & $2.0\pm0.1$ & $2.12\pm0.03$ & $2.9\pm0.2$\\
$AM^\dagger$ & 1.10 & 1.09 & 1.08\\
SMA$[~\arcsec]$ & 3.3 & 4.0 & 4.9 \\
PA$[~\degr]$ & $-50\pm11$ & $-60\pm3$ & $-51\pm2$\\
Ecc. & $0.51\pm0.09$ & $0.75\pm0.03$ & $0.78\pm0.02$\\ 
\hline 
Date & \multicolumn{3}{c}{2007--03--10T00:21--00:41}\\
Filters & $J$ & $H$ & \Ks \\
\hline
Mag.$^\diamond$ & $15.24\pm0.02$ & $13.63\pm0.02$ & $12.53\pm0.08$  \\
$Z_{{\rm p}}$ & $1.929\pm0.002$ & $2.07\pm0.02$ & $2.62\pm0.07$\\
$AM^\dagger$ & 1.20 & 1.18 & 1.16 \\
SMA$[~\arcsec]$ & 3.3 & 4.0 & 4.9 \\
PA$[~\degr]$ & $-64\pm7$ & $-62\pm3$ & $-50\pm 2$\\
Ecc. & $0.68\pm0.06$ & $0.71\pm0.03$ & $0.74\pm0.02$\\ 
\hline%\hline
Date & \multicolumn{3}{c}{2007--03--14T00:26--00:36}\\
Filters & $V$ & $R$ & $I$ \\
\hline
Mag. &  $>$$23.3\pm0.2$ &  $20.8\pm0.2$ & $19.3\pm0.2$  \\
$Z_{{\rm p}}$ & $-0.50\pm0.01$ & $-0.39\pm0.01$ & $0.47\pm0.02$ \\
$AM$ & 1.14 & 1.14 & 1.13 \\
$ext$ & 0.13 & 0.09 & 0.05 \\
\hline
\end{tabular}}
\medskip
$^\diamond$~Total NIR magnitudes were extracted within ellipses centred on the source and defined with the semi-major axis~(SMA), the position angle (PA, relative to west axis and counter clockwise), and the eccentricity (Ecc.); $^\dagger$~The NIR extinction parameters were fixed to $JHK_{{\rm S}} = 0.07,0.03,$ $0.03$ with an error of $\Delta ext/ext=0.2$.
\end{table}