\begin{table}%t2
      \caption{\label{tab-opt} Optical observations of GRB~060111B not corrected for Galactic extinction. }
          $$
         \begin{tabular}{rrrrrl}
            \hline \hline
            \noalign{\smallskip}
$T_{\rm mid}^{{a}}$ & $T_{\rm exp}$ (s) & Filter & mag$^{{b}}$ & $\Delta$mag$^{{\rm b}}$ & Ref. \cr
            \noalign{\smallskip}
            \hline 
            \noalign{\smallskip}
%	33 s	& 5	&	$R$	& 13.1 & & ROTSE-III $^{{\rm (1)}}$\cr
      29.65  s &      3.3    &  $R$ & 13.75    &    0.06  & TAROT$^{{\rm (1)}}$ \cr
       32.95 s   &     3.3   &  $R$ &   13.9    &    0.09 & TAROT \cr
        36.3 s  &      3.4   &  $R$ &  14.05    &    0.09 & TAROT \cr
       39.65 s  &      3.3   &  $R$ &  14.43   &     0.13 & TAROT \cr
       42.95 s  &      3.3   &  $R$ &  14.63    &    0.13 & TAROT \cr
        46.3  s &      3.4   &  $R$ &  14.94   &     0.12 & TAROT \cr
       49.65 s  &      3.3   &  $R$ &  15.11   &      0.2 & TAROT \cr
       52.95 s  &      3.3   &  $R$ &   15.4   &     0.14 & TAROT \cr
        56.3 s  &      3.4   &  $R$ &  15.58  &      0.17 & TAROT \cr
       59.65 s  &      3.3   &  $R$ &   15.4   &     0.22 & TAROT \cr
       67.95 s &      13.3   &  $R$ &  15.79  &      0.10 & TAROT \cr
       81.25 s  &     13.3   &  $R$ &  16.31  &      0.13 & TAROT \cr
       109.6 s  &        30   &  $R$ &  16.46  &       0.15 & TAROT \cr
       146.5 s &        30   &  $R$ &  16.89  &      0.20 & TAROT \cr
       183.3 s  &       30   &  $R$ &  17.53  &      0.30 & TAROT \cr
85.5  s& 30  & $V$ & 16.8    & 0.4 & UVOT     \cr
115.5 s& 30  & $V$ & 17.2    & 0.5 & UVOT     \cr
145.5 s& 30  & $V$ & 17.7    & 0.7 & UVOT     \cr
175.5 s& 30  & $V$ & 17.6    & 0.7 & UVOT     \cr
388 s  & 197 &$B$& 19.73  & 0.32 & UVOT     \cr
%542    & 20   & $V$ & $>$18.0  &      & UVOT     \cr
%638    & 20   &$B$& $>$18.9  &      & UVOT     \cr
%831    & 200  & $V$ & $>$19.4  &     & UVOT     \cr
792  s  & 300   & $R$ & 18.9     & 0.4  & MITSuME$^{{\rm (2)}}$  \cr
792   s & 300   & $I$ & 18.3     & 0.4  & MITSuME$^{{\rm (2)}}$  \cr
%636    & 300  & $V$ & $>$19.1  &      & MITSuME  \cr
%2293   & 300  & $R$ & $>$19.65 &      & MITSuME  \cr
%2293   & 300  & $V$ & $>$19.1  &      & MITSuME  \cr
%0.07  days&  900 & $R$ & $>$19.2  &      & GUALBA   \cr
0.28 days&  3900   & $R$ & 23.2  &   0.5   &   RTT-150       \cr
12.19 days & 1440  & $R$ & $>$21.7  &      &   Maidanak-1.5  \cr
24.18 days  & 2700 & $R$ & $>$22.3  &      &   Maidanak-1.5  \cr
27.20 days  & 1800 & $R$ & $>$22.7  &      &   Maidanak-1.5  \cr
31.18 days & 3420  & $R$ & $>$22.5 &       &   Maidanak-1.5  \cr
16.29 days & 3360  & $R$ & 25.1     & 0.5  &   ZTSh     \cr
108.0  days    &  1200  	 & $V$ & $>$21.6  &      & ZTSh \cr
26.3 days  & 3600  & $R$ & $>$21.0  &      & OHP-T120 \cr
%27.2041   & 1800 & $R$ & $>$22.7  &      &   OHP-T120      \cr
37.1 days & 2700  & $R$ & $>$22.5 &       &   NOT           \cr
159 days     &  1840 	 & $R$ & 24.8     & 0.4  & CFHT     \cr
%2.2 years  &   	 & $R$ & 24.8     & 0.4  & CFHT     \cr
2.3 years     &   1800	 & $H$ & $>23.0$     &   & CFHT     \cr
\hline
5.3 months      &  4800  & &3800--8500~\AA & spectroscopy   & Keck/LRIS     \cr
            \noalign{\smallskip}
            \hline
         \end{tabular}
     $$
\begin{list}{}{}
\item[$^{{a}}$] $T_{\rm mid}$ is the mean epoch of the exposure of duration $T_{\rm exp}$.
\item[$^{{b}}$] Errors are given at 1$\sigma$. The upper limits are given at 3$\sigma$ confidence level. 
\end{list} 
References. (1) all TAROT data are from \cite{Klotz2006}; (2) \cite{Yanagisawa2006}.
   \end{table}