\begin{table}%T1
%\centering
\par
\caption{Fluxes (20$-$100~keV) and spectral parameters derived for
\src~ with IBIS/ISGRI during the whole observation and during its
parts (see text). All the errors are at 1$\sigma$ for one parameter of
interest.}
\begin{tabular}{ccc}
 \hline\hline
 & Flux & Photon index\\
 & [10$^{-12}$ erg cm$^{-2}$ s$^{-1}$] & \\
 \hline
 Average spectrum   & 15$~\pm~$3  & 3.1$~\pm~$0.5\\
 Spring 2003  & 10$~\pm~$3& 4.0$~\pm~$1.0 \\
 2003/2004 & 20$~\pm~$3 & 3.1$~\pm~$0.6\\
 \hline
\end{tabular}
\par
\label{sptab}
\end{table}