\begin{table}%t1
%%\centering

\par
\caption{\label{table:obs}Observing log.}
\begin{tabular}{cccccc}
\hline\hline\noalign{\smallskip}
No. & Wavelength & FoV (\arcsec)& Exposure & Co-adds & Total Exp. \\
&Band&&Time (s)&&Time (m)\\
\hline
1&$K$& 3.2& 3 & 20 &30\\
2&$K$& 0.8& 120 &1 & 30\\
3&$J$& 0.8& 900 &1& 60\\
\hline
\end{tabular}
\end{table}