# APSUM

input,s,a,,,,List of input images
output,s,h,"",,,List of output spectra
apertures,s,h,"",,,Apertures
format,s,h,"multispec","onedspec|multispec|echelle|strip",,Extracted spectra format
references,s,h,"",,,List of aperture reference images
profiles,s,h,"",,,"List of aperture profile images
"
interactive,b,h,yes,,,Run task interactively?
find,b,h,yes,,,Find apertures?
recenter,b,h,no,,,Recenter apertures?
resize,b,h,no,,,Resize apertures?
edit,b,h,yes,,,Edit apertures?
trace,b,h,yes,,,Trace apertures?
fittrace,b,h,yes,,,Fit the traced points interactively?
extract,b,h,yes,,,Extract apertures?
extras,b,h,no,,,"Extract sky, sigma, etc.?"
review,b,h,yes,,,"Review extractions?
"
line,i,h,INDEF,1,,Dispersion line
nsum,i,h,10,,,"Number of dispersion lines to sum or median
"
background,s,h,"none",,,Background to subtract (none|average|fit)
weights,s,h,"none","none|variance",,Extraction weights (none|variance)
pfit,s,h,"fit1d","fit1d|fit2d",,Profile fitting type (fit1d|fit2d)
clean,b,h,no,,,Detect and replace bad pixels?
skybox,i,h,1,1,,Box car smoothing length for sky
saturation,r,h,INDEF,,,Saturation level
readnoise,s,h,"0.",,,Read out noise sigma (photons)
gain,s,h,"1.",,,Photon gain (photons/data number)
lsigma,r,h,4.,0.,,Lower rejection threshold
usigma,r,h,4.,0.,,Upper rejection threshold
nsubaps,i,h,1,1,,Number of subapertures per aperture