\begin{table}%t3
\caption{Best fit parameters for the 0.3--10 keV PN spectra of XMMU~J004303+4115$^a$. Numbers in parentheses represent 90\% confidence uncertainties on the last digit. \label{xspecfits}}
%\centerline
{\begin{tabular}{lllll}
\hline\hline
 Obs. & $N_{\rm H}$ &$\alpha$  & $L$$^b$ & $ \chi^2$/d.o.f.\\
 \hline
x1 & 0.6(2) &  2.15(15) & 3.0(2) &37/34\\
x2 & 1.0(2) & 1.91(15)  & 4.4(3) & 36/34\\
x3 & 1.1(2) & 1.98(15) & 3.3(2) & 16/18\\
x4 & 1.4(2)& 1.89(15) & 12.0(7) & 17/34\\
\hline
\end{tabular}}
\smallskip
$^a$  An absorbed power law model was used, with line-of-sight absorption
 $N_{\rm H}$ (in units of 10$^{21}$~atom~cm$^{-2}$) and spectral index $\alpha$.\\
$^b$ {0.3--10 keV luminosity/10$^{37}$ erg s$^{-1}$.}
\end{table}