\begin{table}%t1
    %\centering
\par
    	\caption{\label{log_spec}Log of the spectroscopic observations.}  
                \begin{tabular}{lcc}
            	\hline\hline
          			& NOT			& Keck \\
          	            	\hline
            	Date		& 2003 Dec. 26		& 2004 Jan. 23 \\
MJD		& 52~999.93		& 53~027.31 \\
No. of spectra	& 3			& 2 \\
Exposure time	& 3 $\times$ 900 s	& 1200 $+$ 390 s \\
Telescope	& NOT			& Keck I \\
Instrument	& {\sc alfosc} 		& {\sc lris} \\
Detector  	& E2V 2k $\times$ 2k 42--40 & Tektronics 2k $\times$ 2k \\
Grism   	& \#5   		& \#4 \\
Blocking filter & GG475   	& GG495 \\
$\lambda$ coverage& 5300--9600~\AA 	& 5600--8100~\AA \\
Pixel size	& 0.19 arcsec		& 0.213 arcsec \\
Slit width	& 1.3 arcsec		& 1.0 arcsec \\
Dispersion	& 3.1~\AA~pixel$^{-1}$	& 1.25~\AA~pixel$^{-1}$ \\
Resolution      & 12~\AA               & 4.5~\AA \\
           	            	\hline
         \end{tabular}
\end{table}