\begin{table}%t1
\caption{Best fit parameters fitting the absorption feature in \sax\ 
observation in Dec. 2001.}\label{fit}
 {\begin{tabular}{l c c c c}
 \hline\hline
 Model$^6$ & $^1E$;$^2\xi$  &
$\tau$;$^3N$${\rm _{H,Fe}}$;$^4$$EW$ &  $z$ & $^5\chi^2$/d.o.f. \\
\hline
\noalign{\smallskip}
Edge & $\rm 8.62^{+0.34}_{-0.52}$ & $\rm 0.06^{+0.03}_{-0.03}$ & -- & 58/70\\\noalign{\smallskip}
Ion Abs & $>$300 & $\rm 3.0^{+1.8}_{-1.8}$ &$<$0.07 & 63.2/69\\\noalign{\smallskip}
Abs line & $\rm 9.1^{+0.2}_{-0.2}$ & $\rm 100^{+45}_{-45}$ & 0.09-0.26 & 57.9/70\\
\hline\end{tabular}}
\medskip
Note: $^1$ In keV; $^2$ In \rm erg cm
s$^{-1}$; $^3$ $N_{{\rm H,Fe}}=N_{\rm H} \times A_{\rm Fe}$, in
10$^{22}$~\rm cm$^{-2}$; $^4$ In eV; $^5$ BLM:
$\chi^2$/${\rm d.o.f.}=71.4$/72; $^6$ Component added to BLM.
\end{table}