\begin{table}%T1
\caption{VLT UVES observations of \he\ and \rx. }
\label{table_obs} 
%\centerline
 {    \small      
         \begin{tabular}{lcccrcccc}
\hline\hline  
QSO&{\rm UVES Setup}&{\rm Wavelength}&{\rm Exp. Time}&{\rm Observing Date}&{\rm
  Seeing}& {\it FWHM}$^a$ &
$S/N$(A)$^b$ & $S/N$(B)$^b$\\
&              &[nm]           &  [s]        &  & [arcsec]&\kms\ &&       \\
            \hline
\he&Dic- (390+580)& 328--445, 476--684 &7~600&Jun. 01&0.7--0.9&6.7&30, 90&15, 40\\ 
   &Dic- (437+860)  &376--500, 667--1040&40~020&Apr. 01--Jan. 02&0.5--1.0\\
   &Dic- (346+564)  &305--390, 460, 660&11~400&Apr. 01--Jun. 01&0.5--0.8\\
\rx&Dic- (390+564)&328--445, 460--560, 567--660&43~200&Dec. 02--Feb. 03&0.7--1.1&7.0&40, 60&12, 20\\ 
\hline                  
\end{tabular}}
\smallskip
$^a$ Resolution of final spectrum. $^b$ Median signal-to-noise ratio per pixel blue and redwards of
  \lya\ emission.
\end{table}