\begin{table}%T4
\par
\caption{\label{tab:fits}Spectral fits and quantile properties.}
\small%\centering
\par
\begin{tabular}{lcccccc}
\hline\hline\noalign{\smallskip}
\multicolumn{1}{c}{Parameter} 		& Sep. 2002 & \makebox[5mm][c]{}& Jan. 2005 & Feb. 2005 & Mar. 2005 & Sep. 2005\\
\hline
 Satellite				&	\cxc	& &  \cxc	&	\xmm	&	\xmm	&\xmm\\
\multicolumn{7}{l}{Spectral analysis:}\\
Net counts\tablefootmark{a}			& $150.9$			& & $10.8$			  & $285.5/105.4/103.2$ 	  & $(47.1)/190.4/108.0$	  & $(12.4)$	  \\
Scaled background counts\tablefootmark{a}		& $27.1$			& & $0.2$			  & $224.5/56.6/52.8$		  & $(698.9)/325.6/331.0$	  & $(227.6)$	  \\
Exposure (ks)\tablefootmark{a}			& $47.85$			& & $4.66$			  & $18.34/21.87/21.91$ 	  & $(7.83)/19.96/19.22$	  & $(13.03)$	  \\ 
$N_{\rm H}$ ($10^{21}$~\cmsq)	& $2.7^{\rm  +1.2}_{-0.9}$		& & $1.4^{\rm  +3.6}_{-1.4}$ 	  & $4.3^{\rm  +1.3}_{-1.1}$ 	  & $1.4^{\rm  +0.8}_{-0.5}$ 	  &  \\
$T$ (MK)				& $25.1^{\rm  +6.3}_{-4.8}$		& & $46^{\rm  +\infty}_{-28}$	  & $7.7^{\rm  +1.3}_{-0.8}$ 	  & $15.9^{\rm  +3.9}_{-2.0}$	  &  \\
EM ($10^{53}$~\cmcc)			& $1.0^{\rm  +0.3}_{-0.2}$		& & $0.4^{\rm  +0.4}_{-0.1}$ 	  & $2.9^{\rm  +1.0}_{-1.0}$ 	  & $2.1^{\rm  +0.2}_{-0.2}$ 	  &  \\
$Z/Z_\odot$				& $:=$$ 0.17$			& & $:=$$0.17$			  & $0.17^{\rm  +0.20}_{-0.06}$	  & $:=$$0.17$			  & 	\\
$F_{\rm X}$ ($10^{-14}$~\ergcms)	& $3.4^{\rm  +0.3}_{-0.3}$		& & $2.0^{\rm  +1.5}_{-1.1}$ 	  & $2.9^{\rm  +0.2}_{-0.2}$ 	  & $5.9^{\rm  +0.7}_{-0.7}$ 	  & $1.2^{\rm  +1.2}_{-1.0}$\tablefootmark{b}	  \\
$L_{\rm X}$ ($10^{30}$~\ergps)	& $1.2^{\rm  +0.1}_{-0.1}$		& & $0.5^{\rm  +0.4}_{-0.3}$ 	  & $2.5^{\rm  +0.2}_{-0.2}$ 	  & $2.1^{\rm  +0.2}_{-0.2}$ 	  & $0.04-0.12$\tablefootmark{b} 	  \\
 \noalign{\smallskip}
 \multicolumn{7}{l}{Quantile analysis:}\\
Energy range				& $0.2{-}6.0$			& & $0.2{-}4.0$ 		  & $0.2{-}4.0$ 		  & $0.2{-}4.0$ 		  & $0.2{-}4.0$\\
Net counts\tablefootmark{c} 			& $150.44$			& & $10.79$			  & $286.45$			  & $196.34$			  & $9.75$\\
Scaled background counts\tablefootmark{c}		& $26.56$			& & $0.21$			  & $222.55$			  & $425.66$			  & $228.25$\\
$Q_{\rm 25\%}$			& $0.17 \pm 0.01$		& & $0.24 \pm 0.07$		  & $0.15 \pm 0.01$		  & $0.15 \pm 0.02$		  & $0.0 \pm 0.5$ \\
$Q_{\rm 50\%}$			& $0.22 \pm 0.01$		& & $0.33 \pm 0.07$		  & $0.20 \pm 0.01$		  & $0.25 \pm 0.02$		  & $0.3 \pm 1.5$ \\
$Q_{\rm 75\%}$			& $0.31 \pm 0.03$		& & $0.42 \pm 0.14$		  & $0.29 \pm 0.01$		  & $0.34 \pm 0.03$		  & $0.9 \pm 1.3$ \\
$E_{\rm 50\%}$~(keV)			& $1.45 \pm 0.06$		& & $1.44 \pm 0.25$		  & $0.95 \pm 0.04$		  & $1.14 \pm 0.07$		  & $1.2 \pm 4.0$ \\
$x = \log[Q_{\rm 50\%}/(1-Q_{\rm 50\%})]$& $-0.56_{-0.03}^{\rm  +0.03}$ 	& & $-0.31_{-0.14}^{\rm  +0.12}$	& $-0.61_{-0.03}^{\rm  +0.03}$	  & $-0.48_{-0.04}^{\rm  +0.04}$	  & $-0.4_{-\infty}^{\rm  +\infty}$\\
$y = 3 \times Q_{\rm 25\%}/Q_{\rm 75\%}$& $1.63_{-0.13}^{\rm  +0.13}$  & & $1.70_{-0.61}^{\rm  +0.61}$	& $1.54_{-0.07}^{\rm  +0.07}$  	  & $1.33_{-0.19}^{\rm  +0.19}$	  & $0.05_{-0.05}^{\rm  +1.42}$\\
$T_{xy}$~(MK)				& $\approx$$20$			& & $\approx$$ 12$			  & $\approx$$ 12$			  & $\approx $$20$			  &  \\
$N_{{\rm H},xy}$~($10^{21}$~\cmsq)	& $\approx $$3$			& & $\approx$$ 8$			  & $\approx$$ 1$			  & $\approx$$ 0.8$  		  &  \\
 \noalign{\smallskip} 
 {} 		                        & {Jan. 2006} 		&  {Feb. 2006} 		&  {Mar. 2006} 				&  {Apr. 2006}		&  {Jul. 2006}           &  {Dec. 2007}\\
\noalign{\smallskip}  
 Satellite				&	\cxc	& \cxc	&	\xmm	&	\cxc	&\cxc	& \cxc\\
\noalign{\smallskip}  
 \multicolumn{6}{l}{Spectral analysis:}\\ 
Net counts\tablefootmark{a}			& $30.5$			& $10.5$			& $623.4/183.8/232.4$			  	& $36.4$			& $36.3$  			& $37.9$  		 \\
Scaled background counts\tablefootmark{a}		& $0.5$				& $0.5$				& $998.6/215.2/209.6$			  	& $0.6$				& $0.7$				& $1.1$			 \\
Exposure (ks)\tablefootmark{a}			& $27.82$	       		& $27.11$			& $78.38/90.90/90.95$	  			& $29.57$	       		& $29.57$     			& $34.73$     		 \\ 
$N_{\rm H}$ ($10^{21}$~\cmsq)	& $3.1^{\rm  +2.4}_{-1.9}$		& $3.6^{\rm  +4.3}_{-3.1}$		& $4.2^{\rm  +0.3}_{-1.1}$		  		& $4.9^{\rm  +5.2}_{-2.0}$		& $7.3^{\rm  +2.2}_{-2.4}$		& $2.5^{\rm  +1.6}_{-1.0}$	 \\
$T$ (MK)				& $46.8^{\rm  +\infty}_{-26.0}$	& $8.7^{\rm  +9.7}_{-3.5}$		& $11.3^{\rm  +3.5}_{-2.8}~/~89^{\rm  +32}_{-43}$		& $15.9^{\rm  +8.6}_{-7.0}$		& $6.5^{\rm  +2.3}_{-2.1}$		& $19.9^{\rm  +7.4}_{-4.7}$	\\ 
EM ($10^{53}$~\cmcc)			& $0.18^{\rm  +0.12}_{-0.05}$	& $0.10^{\rm  +0.34}_{-0.10}$	& $0.22^{\rm  +0.12}_{-0.13}~/~0.51^{\rm  +0.08}_{-0.07}$	& $0.35^{\rm  +0.63}_{-0.11}$	& $1.0^{\rm  +1.9}_{-1.0}$		& $0.20^{\rm  +0.08}_{-0.05}$	\\ 
$Z/Z_\odot$				& $:=$$0.17$			& $:=$$0.17$			& $:=$$0.17$		 			& $:=$$0.17$			& $:=$$0.17$			& $:=$$0.17$		 \\ 
$F_{\rm X}$ ($10^{-14}$~\ergcms)	& $0.91^{\rm  +0.18}_{-0.15}$	& $0.13^{\rm  +0.05}_{-0.04}$	& $3.7^{\rm  +0.2}_{-0.2}$		  		& $0.63^{\rm  +0.11}_{-0.10}$	& $0.47^{\rm  +0.08}_{-0.07}$	& $0.58^{\rm  +0.10}_{-0.09}$ \\ 
$L_{\rm X}$ ($10^{30}$~\ergps)	& $0.27^{\rm  +0.05}_{-0.05}$	& $0.10^{\rm  +0.03}_{-0.03}$	& $1.16^{\rm  +0.07}_{-0.07}$		 		& $0.36^{\rm  +0.06}_{-0.06}$	& $0.9^{\rm  +0.2}_{-0.1}$		& $0.20^{\rm  +0.03}_{-0.03}$	\\ 
 \noalign{\smallskip}
 \multicolumn{7}{l}{Quantile analysis:}\\
 \noalign{\smallskip}
Energy range				& $0.2{-}4.0$			& $0.2{-}4.0$			& $0.3{-}10.0$					& $0.2{-}4.0$			& $0.2{-}4.0$			& $0.2{-}4.0$		 \\
Net counts\tablefootmark{c}			& $30.48$			& $10.53$			& $626.9$				        & $36.37$		        & $36.32$			& $37.91$		 \\
Scaled background counts\tablefootmark{c}		& $0.52$			& $0.47$			& $985.1$				        & $0.63$ 		        & $0.68$			& $1.09$		 \\
$Q_{\rm 25\%}$			& $0.28 \pm 0.04$ 	      	& $0.18 \pm 0.03$		& $0.081 \pm 0.010$			        & $0.23 \pm 0.02$	        & $0.18 \pm 0.01$ 		& $0.22 \pm 0.03$ 	 \\
$Q_{\rm 50\%}$			& $0.35 \pm 0.04$ 	      	& $0.24 \pm 0.09$		& $0.145 \pm 0.006$			        & $0.31 \pm 0.03$	        & $0.24 \pm 0.04$ 		& $0.28 \pm 0.02$ 	 \\
$Q_{\rm 75\%}$			& $0.48 \pm 0.08$ 	      	& $0.46 \pm 0.19$		& $0.255 \pm 0.019$			        & $0.40 \pm 0.06$	        & $0.34 \pm 0.03$ 		& $0.40 \pm 0.06$ 	 \\
$E_{\rm 50\%}$~(keV)			& $1.52 \pm 0.15$ 	      	& $1.12 \pm 0.35$		& $1.709 \pm 0.06$				& $1.39 \pm 0.09$		& $1.11 \pm 0.14$ 		& $1.28 \pm 0.09$ 	 \\
$x = \log[Q_{\rm 50\%}/(1-Q_{\rm 50\%})]$	& $-0.27_{-0.08}^{\rm  +0.07}$ & $-0.50_{-0.26}^{\rm  +0.20}$	& $-0.77_{-0.02}^{\rm  +0.02}$			& $-0.34_{-0.05}^{\rm  +0.05}$	& $-0.50_{-0.09}^{\rm  +0.08}$	& $-0.40_{-0.05}^{\rm  +0.05}$\\
$y = 3 \times Q_{\rm 25\%}/Q_{\rm 75\%}$	& $1.74_{-0.29}^{\rm  +0.29}$  & $1.19_{-0.42}^{\rm  +0.42}$	& $0.95_{-0.11}^{\rm  +0.11}$			& $1.68_{-0.22}^{\rm  +0.22}$	& $1.65_{-0.15}^{\rm  +0.15}$	& $1.63_{-0.25}^{\rm  +0.25}$ \\
$T_{xy}$~(MK)				& $\approx$$13$			& $\approx$$ 35$			& $\approx $$90$					& $\approx $$10$			& $\approx$$ 15$			& $\approx $$16$		 \\
$N_{{\rm H},xy}$~($10^{21}$~\cmsq)	& $\approx$$ 10$			& $\approx $$0.2$			& $\approx$$ 2.5$					& $\approx$$ 9.0$			& $\approx$$ 1.5$			& $\approx $$3.5$		 \\\noalign{\smallskip}
\hline
\end{tabular}
\tablefoot{The uncertainties are based on 68\% Bayesian confidence ranges. X-ray luminosity and absorbed X-ray flux in the $0.1{-}10$~keV range, assuming $d=400$~pc.\\
\tablefoottext{a}{For \xmm\ observations, values refer to the EPIC pn, MOS1, and MOS2, respectively (pn only for September 2005). The values in parentheses refer
to detectors not used in the spectral fits;}
\tablefoottext{b}{estimates based on models for February 2005 and March 2006;}
\tablefoottext{c}{based on pn data in general, except for March 2005 for which MOS1 data only were used (similar values and results were obtained for 
MOS2 data).}}
\end{table}