Infinite source distance.

        Optical Constants:
            Synchrotron 20041025 from flat 065, clipped, linear fit to gaps (see the data)
            Multilayers (coefficients)
		(including a 22A CH2 overlayer)

        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 4 weeks after launch,
                using Lester's estimated multipliers of -0.48 for all optics
            Modifications to cone-angle to give correct focal positions
                as determined from XRCF measurements.
            XRCF Z tilts for shell 6 from HSI "mesh plane" images

        Scattering:
	    none

        Effective Area Correction Factor:
            xrcf_xss_09ei.rdb 

        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.  Includes the FTS periscope
           (axially-spaced ttruts) ( script)

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

        Origin:
           Front of CAP at 0mm

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

        Default Source:
           Point source (script)

        Default Focus Source:
           Point source (script)