\begin{table}%t4
\caption{\label{table4}Measurements of times of steepest decay for four bursts.}
%\centering
\small
\begin{tabular}{c c c c c}
\hline \hline
Burst & Time of steepest & 1$\sigma$ error & Slope  & 1$\sigma$ error\\
number & decay (min)                 & (min)           & (Jy/min) & (Jy/min) \\
\hline
2            & 146.136                &  0.041          &   --1.125 & 0.146 \\
3           & 223.489                &  0.057          &   --0.811 &  0.150\\   
4           & 300.578                &  0.067          &   --0.717 & 0.150\\      
5           & 377.439                &  0.066          &   --0.734 & 0.148 \\
\hline
\end{tabular}
\end{table}