\begin{table}%t1
\caption{Imaging and spectral log.  
\label{table1}}
%\centerline
 {
\begin{tabular}{lcccccc}  
\noalign{\smallskip}  
\hline  \hline
\multicolumn{6}{c}{IMAGING} \\  
Filter & $\lambda_{\rm c}$ & $\Delta \lambda$ & Total exp. time &
N$^{\rm o}$ of diff. fields & Telescope\\ & ($\AA$) & ($\AA$) & (sec)
& & \\
\hline
\HNII & 6570 & 75 & 7200 (3)$^{a}$ & 1 & 0.3-m \\
\OIII & 5010 & 28 & 7200 (3) & 1 & 0.3-m \\
\SII & 6720 & 18 & 4800 (2) & 1 & 0.3-m \\
Cont blue & 5470 & 230 & 180 & 1 & 0.3-m \\
Cont red & 6096 & 134 & 180 & 1 & 0.3-m \\
\OIII & 5010 & 28 & 2400 & 9 & 1.3-m \\
Cont blue & 5470 & 230 & 180 & 9 & 1.3-m \\
\HNII & 6570 & 75 & 2400 & 9 & 1.3-m \\
Cont red & 6096 & 134 & 180 & 9 & 1.3-m \\
\hline
\multicolumn{7}{c}{SPECTROSCOPY} \\  
Area & \multicolumn{2}{c}{Slit centers} & Total exp. time &
Offset$^{b}$ & Aperture length$^{c}$ & Telescope \\  
 & $\alpha$ & $\delta$ & (s) & (arcsec) & (arcsec)& \\  
\hline  
North (BI) & 18\h23\m44.0\s & --16\degr29\arcmin05\arcsec & 7800 (2)
& 10.6 N & 38.9 & 1.3-m \\
North (BII) & 18\h23\m44.0\s & --16\degr29\arcmin05\arcsec & 7800
 (2) & 96.8 N & 13.0 & 1.3-m\\
South-East (E1) & 18\h24\m14.6\s & --16\degr36\arcmin38\arcsec & 3900 &
 123.3 S & 15.3 & 1.3-m\\
\hline  
\end{tabular}}
\par
\smallskip
${^a}$ Numbers in parentheses represent the number of individual frames.\\
${^b}$ Spatial offset from the slit center in arcsec: N($=$North),
S($=$South).\\ 
${^c}$ Aperture lengths for each area in arcsec.
\end{table}