Notes. Column 1: interstellar absorption (×10²² atom cm⁻²); Cols. 2 and 3: black-body temperature or the power-law index (Γ) respectively; Col. 4: normalisation of the model (radius²(km)/distance²(10 kpc) for the black-body model or fraction of the neutron star surface emitting for the nsatmos model); Col. 5: radius of the emitting region in the case of the thermal models and for the nsatmos models assuming a neutron star radius of 10.6 km, or photons⁻¹ keV⁻¹ cm⁻² s⁻¹ at 1 keV for the power-law model and the goodness of fit measured using the C-statistic; Col. 6: number of degrees of freedom; Cols. 7 and 8: estimate of the un-absorbed and absorbed fluxes in the 0.2–10.0 keV band (×10⁻¹⁴ erg cm⁻² s⁻¹), respectively. All the errors are given for 90% confidence for one interesting parameter. For the fluxes, the errors are for 68% confidence. No error bars on a fittable parameter implies that the value for that parameter was fixed to the displayed value.