\begin{table}%t4
\caption{GRB050219a BAT time-resolved spectral fits.\label{table_grb050219a}}
%\centerline
{\begin{tabular}{cccccc}
\hline\hline
 & \multicolumn{1}{c}{Segment 1} & \multicolumn{1}{c}{Segment 2} &
 \multicolumn{1}{c}{Segment 3} & \multicolumn{1}{c}{Segment 4} &
 \multicolumn{1}{c}{Segment 4$+$5} \\\hline
duration (s) & 8 & 6 & 4 & 7 & 14 \\
$\Gamma$ & $\rm -0.59^{+0.59}_{-0.65}$ & $\rm -0.34^{+0.44}_{-0.58}$ & $\rm 0.23^{+0.42}_{-0.47}$ & $\rm 0.42^{+0.40}_{-0.56}$ & $\rm 0.75^{+0.50}_{-0.56}$ \\
$E_{\rm peak}^{\dagger}$ & $\rm 90.9^{+9.3}_{-8.0}$  & $\rm 94.3^{+8.4}_{-7.5}$ & $\rm 123.0^{+18.1}_{-14.1}$ & $\rm 67.6^{+7.9}_{-6.8}$ & $\rm 62.3^{+9.5}_{-7.4}$ \\ 
$\chi^{2}$/{\rm d.o.f.} & $44.2/55$           & $36.4/55$ & $62.5/55$ & $41.7/55$ & $57.7/55$ \\ 
\hline
\end{tabular}
}\medskip
\par
\noindent $\dagger$ The error on $E_{\rm peak}$ is the 90\% confidence limit
for a fixed value of the high energy cut-off $E_{\rm HighEcut}$, where $E_{\rm
peak}=(2-\Gamma)\times E_{\rm HighEcut}$. 
\end{table}