\begin{table}%T2
\par
%\centering
\par
\caption{A sample of the online catalog. Only a few entries are
displayed to illustrate the catalog format and contents. See text for a
detailed description on the measurement procedures.}\label{t2}
\label{online}
\begin{tabular}{ccccccc}
\hline\hline
\noalign{\smallskip}
Id & $J$ & $K$ & $\sigma_J$ & $\sigma_K$ & RA & Dec \\
 & (mag) & (mag) & (mag) & (mag) & (deg) & (deg) \\
\noalign{\smallskip}
\hline
\noalign{\smallskip}
1 & 8.728 & 7.731 & 0.043 & 0.047 & 201.7852918 & --47.5302560 \\
2 & 9.178 & 8.291 & 0.100 & 0.038 & 201.7787851 & --47.5318524 \\
3 & 9.134 & 8.103 & 0.063 & 0.135 & 201.7231633 & --47.5327578 \\
4 & 9.274 & 8.305 & 0.077 & 0.183 & 201.7602655 & --47.4837799 \\
5 & 9.305 & 8.401 & 0.070 & 0.059 & 201.7608180 & --47.5516698 \\
\noalign{\smallskip}
\hline
\end{tabular}
\end{table}