\begin{table}%t2
  \caption{\label{tab:Observations}Observing log.}
 %\centerline
{ \begin{tabular}{lcccccc}
            \hline
            \hline
    \noalign{\smallskip}
    {Target} & {Date } & {Filt.} &{Seeing$^1$} &{${\it SNR}^2$}  & $t_{\rm exp}$ & $N_\theta^3$ \\
                    &              &          &  ('')       &               & (s) \\
    %\noalign{\smallskip}
    \hline
    %\noalign{\smallskip}
    DENIS J2200  	& 01/08/05 &$I$ 	& 1.7 	&  720	& 160	&  3 \\
    \noalign{\smallskip}
    Kelu~1~AB   		& 02/08/05 &$I$ 	& 1.4 	& 529	& 200	&  2 \\
    			                   & 02/08/05 & $z$ 	& 1.6 	& 243	& 200	&  2 \\
    \noalign{\smallskip}
    2MASS J0036 	&  01/08/05 &$R$	& 1.5 	&706	& 600	&  3 \\
		                   	& 01/08/05 &$I$	& 1.7  	& 677	& 150	&  3 \\
							& 10/08/06 &$I$	& 1.3 	 & 785	& 150	&  4 \\
							& 11/08/06 &$I$	& 0.9 	 & 937	& 150	&  4 \\
    \noalign{\smallskip}
    2MASS J2158 	& 01/08/05 &$I$ 	& 1.2 	 & 189	& 300	&  3 \\
							& 02/08/05 & $z$   	& 1.0 	 & 350	& 400	&  3 \\
    \noalign{\smallskip}
    LHS~102BC      	& 01/08/05 &$I$ 	& 1.2 	 & 186	& 130	&  2 \\
                                 & 02/08/05 &$I$   & 0.9 	 & 192  & 180	&  2 \\
							& 02/08/05 & z	 	& 0.9 	 & 532	& 200	&  3 \\
							& 28/07/06 & I		& 1.2	 	& 890	& 150	&  4 \\
    \noalign{\smallskip}
    2MASS J1507 	& 01/08/05 &$R$	& 1.0 	 & 491	& 200	&  3 \\
							& 01/08/05 &$I$ 	& 1.0 	 & 783	& 160	&  3 \\
    \noalign{\smallskip}
    DENIS J2252 	& 02/08/05 &$I$ 	& 1.0 	 & 428	& 600	&  3 \\
    \noalign{\smallskip}
    2MASS J2244 	& 02/08/05 & $z$		& 1.1  	& 124	& 600	&  2 \\
                                 & 19/08/06 &$I$	& 0.8 	& 222	& 300 	&  3 \\
                                 & 21/08/06 &$I$	& 0.9 	 & 214	& 300 	&  3 \\
							& 22/08/06 &$I$	& 0.8 	& 229	& 300	&  3 \\
    \noalign{\smallskip}
    $\epsilon$ Indi Bab & 01/08/05 & $I$  & 1.2 & 422	& 150	&  3 \\
    %\noalign{\smallskip}
    \hline
  \end{tabular}
 }
 \medskip
  $^1$ The seeing is calculated from the average ${\it FWHM}$ of the science target in the given night. 
 $^2$ {Signal-to-noise ratio (${\it SNR}$), averaged for each target over a night}.
  $^3$ Number ($N_\theta$) of exposures per retarder angle. 
\end{table}