        (time = INDEF)          Total exposure time (sec)
          (sn = 25.)            S/N per pixel if time is INDEF\n\n# Source and 
    (spectrum = "blackbody")    Source spectrum
   (spectitle = "")             Spectrum title
           (E = 0.)             E(B-V)
           (R = 3.1)            A(V)/E(B-V)
         (sky = "")             Sky spectrum
    (skytitle = "")             Sky title
  (extinction = "")             Extinction value or table
    (exttitle = "")             Extinction title\n\n# Spectral distribution par
     (refwave = 1.)             Reference wavelength
     (refflux = 20.)            Source flux at reference wavelength
      (funits = "AB")           Reference flux units
 (temperature = 6000.)          Blackbody temperature (K)
       (index = -4.)            Power law index\n\n# Observation parameters
      (seeing = 1.)             Seeing (arcsec)
     (airmass = 1.)             Airmass
       (phase = 0.)             Moon phase (0-14)
     (thermal = 0.)             Thermal background temperature (K)
        (wave = INDEF)          Central wavelength
       (order = INDEF)          Order for grating
      (xorder = INDEF)          Order for crossdisperser grating
       (width = INDEF)          Slit width (-=pixels +=arcsec)
      (length = INDEF)          Slit length (-=pixels +=arcsec)
    (diameter = INDEF)          Circular/fiber aperture diameter (-=pixels +=ar
        (xbin = 1)              Detector binning (dispersion)
        (ybin = 1)              Detector binning (spatial)\n\n# Calculation par
      (search = "spectimedb$")  List of directories to search for tables
      (maxexp = 3600.)          Maximum time per exposure (sec)
       (units = "Angstroms")    Wavelength units
      (skysub = "")             Type of sky subtaction (none|longslit|multiap)
     (nskyaps = 10)             Number of multiap sky apertures
   (subpixels = INDEF)          Number of subpixels in calculation
    (sensfunc = "")             Sensitivity function value or table\n\n# Output
      (output = "object,snr")   List of output quantities
          (nw = 101)            Number of output dispersion points
        (list = "")             Output list file
    (graphics = "g-gif")        Graphics device
 (interactive = no)             Interactive pause after graphs?\n\n# Spectrogra
    (specpars = "")             Spectrograph parameters
        (mode = "h")            
