spectrograph,s,h,"",,,Spectrograph transmission or table
title,s,h,"",,,Spectrograph title
apmagdisp,r,h,INDEF,,,Aperture magnification along dispersion
apmagxdisp,r,h,INDEF,,,Aperture magnification across dispersion
inoutangle,r,h,INDEF,,,Incident to diffracted angle (deg)
xinoutangle,r,h,INDEF,,,"Incident to diffracted cross disperser angle (deg)

# Telescope"
telescope,s,h,"",,,Telescope transmission or table
teltitle,s,h,"",,,Telescope title
area,r,h,INDEF,,,Telescope effective area (m^2)
scale,r,h,INDEF,,,Telescope scale at entrance aperture (arcsec/mm)
emissivity,s,h,"",,,Emissivity value or table
emistitle,s,h,"",,,"Emissivity title

# Correctors"
corrector,s,h,"",,,Corrector transmission or table
cortitle,s,h,"",,,Corrector title
adc,s,h,"",,,ADC transmission or table
adctitle,s,h,"",,,"ADC title

# Disperser"
disperser,s,h,"",,,Disperser efficiency or table
disptitle,s,h,"",,,Disperser title
disptype,s,h,"",,,Disperser type (grating|grism|generic)
gmm,r,h,INDEF,,,Grating (grooves/mm)
blaze,r,h,INDEF,,,Blaze or prism angle (deg)
oref,r,h,INDEF,,,Reference order
wavelength,r,h,INDEF,,,Central wavelength in ref order (A)
dispersion,r,h,INDEF,,,Dispersion at central wavelength in ref order (A/mm)
indexref,r,h,INDEF,,,Index of refraction at first order
eff,r,h,INDEF,,,"Peak efficiency

# Crossdisperser"
xdisperser,s,h,"",,,Crossdisperser efficiency or table
xdisptitle,s,h,"",,,Crossdisperser title
xdisptype,s,h,"",,,Disperser type (grating|grism|generic)
xgmm,r,h,INDEF,,,Grating (grooves/mm)
xblaze,r,h,INDEF,,,Blaze or prism angle (deg)
xoref,r,h,INDEF,,,Reference order
xwavelength,r,h,INDEF,,,Central wavelength in ref order (A)
xindexref,r,h,INDEF,,,Index of refraction at first order
xdispersion,r,h,INDEF,,,Dispersion at central wavelength in ref order (A/mm)
xeff,r,h,INDEF,,,"Peak efficiency

# Aperture"
aperture,s,h,"",,,Aperture transmission or table
aptitle,s,h,"",,,Aperture title
aptype,s,h,"",,,"Aperture type (rectanglular|circular)

# Fiber"
fiber,s,h,"",,,Fiber transmission or table
fibtitle,s,h,"",,,"Fiber title

# Filters"
filter,s,h,"",,,Filter transmission or table
ftitle,s,h,"",,,Filter title
filter2,s,h,"",,,Filter transmission or table
f2title,s,h,"",,,Filter title
block,s,h,"",,,"Assume other orders are blocked (yes|no)

# Collimator"
collimator,s,h,"",,,Collimator transmission or table
coltitle,s,h,"",,,Collimator title
colfl,r,h,INDEF,,,"Collimator focal length (m)

# Camera"
camera,s,h,"",,,Camera transmission or table
camtitle,s,h,"",,,Camera title
camfl,r,h,INDEF,,,Camera focal length (m)
resolution,r,h,INDEF,,,Camera resolution (mm)
vignetting,s,h,"",,,"Vignetting table

# Detector"
detector,s,h,"",,,Detector DQE or table
dettitle,s,h,"",,,Detector title
ndisp,r,h,INDEF,,,Detector pixels along dispersion
pixsize,r,h,INDEF,,,Detector pixel size (mm)
gain,r,h,INDEF,,,Detector gain (photons/ADU)
rdnoise,r,h,INDEF,,,Detector read noise (photons)
dark,r,h,INDEF,,,Detector dark count rate (photons/s)
saturation,r,h,INDEF,,,Detector saturation (photons)
dnmax,r,h,INDEF,,,Detector maximum counts (ADU)
xbin,i,h,1,1,,Detector binning (dispersion)
ybin,i,h,1,1,,Detector binning (spatial)