**Table 2:** The best fit parameters for the continuum for the earlier RGS observation (Steenbrugge et al. 2003) and the present HETGS and LETGS observations of NGC 5548. The parameters for the HETGS and LETGS are for the best fit model including the three *slab* components with the outflow velocities frozen to the UV values.
Parameter	RGS	HETGS	LETGS
pl:norm^a	1.57 $\pm$ 0.03	0.90 $\pm$ 0.01	1.30 $\pm$ 0.01
pl:lum^b	5.7 $\pm$ 0.1	3.62 $\pm$ 0.04	4.02 $\pm$ 0.03
pl: $\Gamma$	1.77 $\pm$ 0.02	1.71 $\pm$ 0.01	1.88 $\pm$ 0.01
mbb:norm^c	6.5 $\pm$ 0.7	<400	3.5 $\pm$ 0.9
mbb:T (in eV)	97 $\pm$ 6	-	100 $\pm$ 10

^a At 1 keV in 10⁵² ph s^-1 keV^-1.
^b The luminosity as measured in the 2-10 keV band in 10³⁶ W.
^c Norm = emitting area times square root of electron density in 10³² m^1/2.

Source LaTeX | All tables | In the text

	1 Introduction
	2 Observation and data reduction
	3 Spectral data analysis
	4 Timing analysis
	5 Discussion
	6 Ionization structure
	7 The outflow
	8 Summary and conclusions
	References
	Online Material
	Appendix A
	Appendix B
	Appendix C