\begin{table}%t1
%\centering
\par
\caption{Spectral parameters for GRB~070707 fit by a simple power-law model for IBIS/ISGRI and SPI and a joint fit to both instruments. The columns list the values for the photon index~$\alpha$, the best fit reduced $\chi^2_{\rm r}$~per degrees of freedom (d.o.f.), and fluence in the energy range \mbox{20--200}~keV. The final two rows list the best fit parameters of the cutoff power-law model when fit to the joint data.} \label{spec}
\begin{tabular}{lccl}
\hline\hline\noalign{\smallskip}
 Interval &  $\alpha$ &  $\chi^2_{\rm r}$ &  Fluence  \\
& &  /d.o.f. &  (20--200~keV) \\
& & &  ($\times 10^{-7}$~erg~cm$^{-2}$) \\
\hline 
 PL Fit: & & & \\
Rise Time (ISGRI) & $\rm -1.26~^{+0.21}_{-0.20}$ & 1.25/24 & $\rm 2.04~^{+0.06}_{-0.52}$\\[2mm]
Fall Time (ISGRI) & $\rm -1.36~^{+1.24}_{-1.22}$ & 1.14/6 & $\rm 0.44~^{+0.05} _{-0.36}$ \\[2mm]
$T_{90}$ (ISGRI) & $\rm -1.19~^{+0.19}_{-0.18}$ & 1.24/26 & $\rm 1.98~^{+0.05}_{-0.43}$ \\[2mm]
$T_{90}$ (SPI) & $\rm -1.19~^{+0.23}_{-0.20}$ & 0.59/15 & $\rm 2.58~^{+0.10}_{-0.75}$ \\[2mm]
$T_{90}$ (Joint Fit)& $\rm -1.19~^{+0.14}_{-0.13}$ & 1.09/47 & $\rm 2.07~^{+0.06}_{-0.32}$ \\[2mm]
%\hline
Cutoff PL Fit: & $\rm -1.04~^{+0.26}_{-0.33}$ & 1.11/45 & $\rm 2.11~^{+0.11}_{-0.81}$ \\[2mm]
($T_{90}$, Joint Fit)&  \multicolumn{3}{l}{$E_0 = 673~^{\rm +786}_{-270}$~keV, $E_{\rm peak} = 645~^{+766}_{-330}$~keV} \\
\hline
\end{tabular} 
\end{table}