\begin{table}%T1
\caption{\label{tb:tfit}Fitted parameters describing the temporal evolution of the afterglow. $\delta_1$ and~$\delta_2$ are the early- and
late-time temporal slopes, and~$\tb$ is the break time (measured in hours since Aug.~13.1141~UT); see
Eq.~(\ref{eq:lc}). Errors are~1-$\sigma$.}
%\centering
\par
\begin{tabular}{llll}
\hline
  Band  &$\delta_1$     &$\delta_2$     &$\tb$ (h)    \\
   \hline 
  $V$   &$0.84\pm0.11$  &$1.34\pm0.06$  &$11.9\pm6.4$ \\        
  $R$   &$0.76\pm0.05$  &$1.46\pm0.04$  &$13.7\pm1.2$ \\        
  $I$   &$0.80\pm0.03$  &$1.43\pm0.12$  &$16.7\pm1.7$ \\ 
  \hline
  All   &$0.78\pm0.02$  &$1.44\pm0.04$  &$14.2\pm0.8$ \\ 
  \hline
\end{tabular}
\end{table}