last update: Aug 15, 1997 by ejb

 (instrfilters = "")             filter bolt positions
    (aperture = "")             aperture
      (tvfilt = "")             tv filter
    (complamp = " ")            comparison lamp
    (probepos = " ")            probe position file
   (disperser = "")             disperser
     (tiltpos = "6216")         tilt position
       (order = "55")           spectral order (0 = most efficient)
      (decker = "")             decker
  (instrfocus = "")             instrument focus
    (posangle = "")             position angle
    (dispaxis = "")             dispersion axis
         (fts = "")             filter translation
    (filtoffs = "")             filter offset values
   (polarizer = "")             polarizer angle in degrees
   (instrinfo = "")             Optional image header info about instrument
    (instrcap = "runlib$instrcap") Instrument capabilities file
   (instrname = "cs23-e2")      Instrument name
        (mode = "ql")           

Fine tuning of the echelle setting can be done using
by putting in tilepos:
E means Echelle
P means Prims

E+20      Increase the central echelle wavelength by 20 angstroms.
P-10.34   Decrease the central prism wavelength by 10.34 angstroms.

E@5600.1  Set the echelle wavelength to 5600.1 angstroms.  Do not move prism.
P@8322    Set the prism wavelength to 8322 angstroms.  Do not move echelle.

E#+20     Increase the echelle position by 20 steps.
P#-10     Increase the prism position by 10 steps.
E#@10000  Set the echelle position to 10000 steps.  Do not move prism.