\begin{table}%t4
\caption{ Best-fit parameters of the seven spectra extracted from the 
November 14, 2002 observation and from the flaring section of the
December~1st, 2002  observation, modelled
with an absorbed power law.
\label{tab4}}
%\begin{center}
{\begin{tabular}{ccccc}
\hline\hline
Section & $\alpha$ & $k^a$ & $F_{0.6-10 ~\rm keV}$$^b$ & $\chi^2_r/\rm d.o.f.$ \\
        &          &  & ($\times 10^{-10}$) & \\
\hline
\multicolumn{5}{c}{14 November 2002, Obs. Id. 0136540701}\\
\hline
1  & $1.20 \pm 0.01$ & $0.199\pm 0.002$ & 7.44 & 1.28/125\\
2  & $1.16^{+0.01}_{-0.02}$ & $0.211\pm 0.001$ & 8.12 & 1.73/125\\
3  & $1.10\pm0.01$ & $0.250\pm 0.002$ & 10.1 & 1.70/125\\
4  & $1.03\pm0.01$ & $0.312\pm0.002$ & 13.4 & 1.72/125\\
5  & $1.17\pm0.01$ & $\rm 0.269^{+0.001}_{-0.002}$ & 10.3 & 1.35/125 \\
6  & $1.24\pm0.01$ & $\rm 0.222^{+0.001}_{-0.002}$ & 8.04 & 1.39/125\\
7  & $1.23\pm0.01$ & $0.197\pm0.002$ & 7.16 & 1.31/125\\
\hline
\multicolumn{5}{c}{1 December 2002, Obs. Id. 0136541001}\\
\hline
1 & $1.597\pm 0.006$ & $0.1027\pm0.0004$ & 2.95 & 1.02/977\\
2 & $\rm 1.574^{+0.006}_{-0.007}$ & $\rm 0.1057^{+0.0003}_{-0.0004}$ & 3.08 & 0.96/998\\
3 & $1.557\pm 0.006$ & $\rm 0.1113^{+0.0003}_{-0.0004}$ & 3.27 & 1.15/1029\\
4 & $\rm 1.517^{+0.007}_{-0.006}$ & $\rm 0.115^{+0.0003}_{-0.0005}$ & 3.46 & 1.02/1026\\
5 & $1.518\pm0.006$ & $\rm 0.1118^{+0.0003}_{-0.0004}$ & 3.36 & 1.09/1049\\
6 & $1.535\pm0.006$ & $0.1066\pm0.0004$ & 3.17 & 1.06/1038\\
7 & $\rm 1.542^{+0.006}_{-0.007}$ & $0.1029\pm0.0004$ & 3.05 & 1.07/1033\\
\hline
\end{tabular}}
$^a$ Power law normalization (cts cm$^{-2}$ s$^{-1}$ keV$^{-1}$);
$^b$ erg cm$^{-2}$ s$^{-1}$.
\end{table}