\begin{table}%t1
 \caption{REM ${\it KHJz}'R$ and CAFOS $R$ photometry of GRB~070311.}
 \label{tab:REM}
 \small%\centerline
{
 \begin{tabular}{rrrrr}
 \hline
 \hline
% &&&& \\[-8pt]
Start time         &  End time    &     Exposure    &   Mag$^{{a,b}}$   &  Instr/Filter    \\
      (s)           & (s)      	& (s)       		&        		&       \\
 \hline
     554 &    704   &    150   & $15.20\pm0.24$ & REM/$K$ \\
    1281 &   1431   &    150   & $>$15.10       & REM/$K$ \\
\hline
      59 &     69   &     10   & $14.36\pm0.23$ & REM/$H$ \\
      75 &     85   &     10   & $13.83\pm0.14$ & REM/$H$ \\
      90 &    100   &     10   & $14.29\pm0.20$ & REM/$H$ \\
     105 &    115   &     10   & $14.21\pm0.19$ & REM/$H$ \\
     120 &    130   &     10   & $14.70\pm0.30$ & REM/$H$ \\
     138 &    148   &     10   & $13.88\pm0.15$ & REM/$H$ \\
     154 &    164   &     10   & $14.50\pm0.24$ & REM/$H$ \\
     168 &    178   &     10   & $14.37\pm0.22$ & REM/$H$ \\
     184 &    210   &     26   & $14.58\pm0.19$ & REM/$H$ \\
     224 &    274   &     50   & $15.38\pm0.20$ & REM/$H$ \\
     303 &    353   &     50   & $15.48\pm0.22$ & REM/$H$ \\
     372 &    522   &    150   & $15.77\pm0.15$ & REM/$H$ \\
    1099 &   1249   &    150   & $>$16.4  & REM/$H$ \\
    1826 &   1976   &    150   & $>$16.4  & REM/$H$ \\
    2536 &   2836   &    300   & $>$17.3  & REM/$H$ \\
\hline
     735 &    885   &    150   & $>$17.10 & REM/$J$ \\
    1462 &   1612   &    150   & $17.35\pm0.31$ & REM/$J$ \\
    2188 &   2338   &    150   & $>$17.10   & REM/$J$ \\
    3198 &   3498   &    300   & $>$17.24   & REM/$J$ \\
\hline
     917 &   1067   &    150   & $16.1\pm0.3$ & REM/$z'$ \\
\hline
    59.2 &   89.2   &     30   & $17.49\pm0.22$ & REM/$R$ \\
   105.6 &  135.6   &     30   & $17.86\pm0.21$ & REM/$R$ \\
   151.8 &  181.8   &     30   & $17.73\pm0.19$ & REM/$R$ \\
   197.9 &  227.9   &     30   & $18.12\pm0.27$ & REM/$R$ \\
   244.1 &  274.1   &     30   & $18.19\pm0.35$ & REM/$R$ \\
   290.3 &  320.3   &     30   & $18.31\pm0.35$ & REM/$R$ \\
   336.5 &  597.0   &    180   & $18.91\pm0.24$ & REM/$R$ \\
   613.0 &  643.0   &     30   & $18.32\pm0.34$ & REM/$R$ \\
   659.2 & 4295.6   &   1530   & $21.20\pm0.50$ & REM/$R$ \\
   62~174 & 74~783    &   8400   & $22.57\pm0.12$ & CAFOS/$R$ \\
  149~180 & 160~924   &  10~810   & $22.60\pm0.08$ & CAFOS/$R$ \\
  \hline
  \end{tabular}}
  \medskip
  $^{{a}}$ Values are not corrected for Galactic extinction. \\
  $^{{b}}$ Errors at the 68\% confidence level and upper limits (3$\sigma$) are given. 
\end{table}