input,s,a,,,,"List of input images" output,s,h,"",,,"List of output spectra" apertures,s,h,"",,,"Apertures" format,s,h,"echelle",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" mode,s,h,"ql",,,