\begin{table}%t1
\caption{Log of the observations.}
\label{log}
%\centering
\par
\begin{tabular}{ccccccccc}
\hline \hline
   Telescope  & Date & Seeing($\arcsec$) & No. of frames & & Exp. & Times &(s)&  \\
              &      &          &  & $u$ & $v$ & $b$ & $y$ & $H_{\beta}$ \\
\hline
  1.23 m CAHA  & 1999/01/12-15 & (1) & 19 & 1900 &  800 & 400 & 400 & 2000 \\
  1.23 m CAHA  & 2000/01/05-10 & 1.0-1.3 & 54 & 2200 & 1400 & 900 & 800 & 1400 \\
  1.52 m OAN   & 1999/01/13-16 & (1) & 36 & 1900 & 800 & 400 & 400 & 2000 \\
  1.52 m OAN   & 2000/02/07-14 & (1) & 23 & -- & -- & 900 & 800 & 1400 \\
   1 m JKT &  1998/12/11-14 & (1) & 81 & 2000 & 1200 & 800 & 700 & 1200 \\
  1 m JKT &  2000/02/02-06 & 0.9-1.3 & 37 & -- & -- & -- & -- & 2000 \\
  2.5 m WFC-INT & 2000/02/02-03 & 1.3 & 23 & 2000 & 2000 & 1200 & 500 & --  \\
\hline
\end{tabular}
%\smallskip
(1) Poor weather conditions. Images not used in the final data.
\end{table}