\begin{table}%ta.1
 %\centering
\par
\caption{\label{photseq}$UBVRI$ magnitudes of the sequence stars in the field of SN~2007rt.} 
\small \begin{tabular}{lcccccccccc}
\hline \hline
ID &$U$ & $U_{\rm err}$ & $B$ & $B_{\rm err}$ & $V$ & $V_{\rm err}$ & $R$ & $R_{\rm err}$ & $I$ & $I_{\rm err}$ \\
\hline 
1   & 18.037 & 0.003 & 18.225 & 0.002 & 17.669 & 0.004 & 17.294 & 0.000 & 16.905 & 0.008 \\ 
2   & 19.052 & 0.003 & 18.022 & 0.004 & 16.462 & 0.007 & 15.330 & 0.008 & 13.796 & 0.024 \\
3   & 20.243 & 0.022 & 19.269 & 0.016 & 17.785 & 0.005 & 16.652 & 0.009 & 15.215 & 0.010 \\
4   & 17.956 & 0.012 & 17.534 & 0.016 & 16.682 & 0.007 & 16.217 & 0.013 & 15.778 & 0.005 \\
5   & 20.730 & 0.014 & 20.083 & 0.017 & 19.177 & 0.007 & 18.673 & 0.003 & 18.200 & 0.003 \\
6   & 20.968 & 0.026 & 20.048 & 0.011 & 18.607 & 0.003 & 17.781 & 0.008 & 16.951 & 0.010 \\ 
7   & 17.541  & 0.026& 21.797 & 0.009 & 20.321 & 0.016 & 19.288 & 0.012 & 17.896 & 0.008 \\
8   & 17.623  & 0.039& 17.875 & 0.006 & 17.360 & 0.011 & 17.028 & 0.007 & 16.659 & 0.005 \\
9   &  21.031 & 0.006& 19.922 & 0.004 & 18.775 & 0.017 & 18.055 & 0.015 & 17.428 & 0.032 \\
10 & 17.756 & 0.002 & 18.012 & 0.007 & 17.549 & 0.009 & 17.247 & 0.006 & 16.974 & 0.029 \\
11 &  & & 13.639 & 0.006 & 13.140 & 0.004 &  &  & & \\
12 &  & & 13.792 & 0.007 & 13.064 & 0.009 &  &  & &  \\
\hline
\end{tabular}
\end{table}