A power-law continuum with a Lorentzian high-energy turnover, an iron 
line and soft X-Ray absorption. For the iron line a Gaussian form is 
assumed with a fixed intrinsic width of 0.2 keV.
 
 
There are specified models for three different intensity states (high 
post-egress, mid-eclipse, pre-eclipse-dip). For spectral parameters 
and further information about the models see Nagase et al. (1992).