XRCF source distance derived from the Project Science XSS distances page
	    as of Wed Apr 29 15:28:49 EDT 1998. See xss_distance_01.lua
            for more information.

        Optical Constants:
            Gullikson95 below 0.940keV
            Synchrotron 19991215 from flat 065 (see the data)
            Multilayers (coefficients)


        Mirror Rigid Body Specs:
            EKCHDOS06
            HATS alignment data
	    XRCF decenter values

        Mirror deformations:
            Low order surface map data from HDOS data.
            Estimates of the 2nd and 3rd order distortions from HATS data.
            Epoxy cure shrinkage effects for 2 weeks after pumpdown.
            Distortion due to horizontal orientation in 1g.
	    Modifications to cone-angle to give correct focal positions
	        as determined from XRCF measurements.
            XRCF Y tilts from quadrant shutter focus measurements
            XRCF Z tilts for shell 6 from HSI "mesh plane" images

        Scattering:
            HDOS_980623 high frequency scattering tables

        CAP:
           rectangular struts and annulus, thick plate. ( script)

        Pre-Collimator:
           rectangular struts and annulus, thin plates. ( script)

        Post-Collimator:
           rectangular struts and annulus, thin plates. ( script)

        P6 Ghost Baffle:
           filled disk, thin plate. ( script )

        Origin:
           Front of CAP at 0mm

        Entrance aperture:
           Pre-Collimator plate 1 (script) (data)

        Quadrant Shutters:
           (script)

	XSS:
	  Currently, only the PIGS source is modelled.  Data are taken from 
	  the MSFC site as of 24 April 1998.
           (script)

        Default Focus Source:
	   XSS Source (script)