# APSIGMA

input,s,a,,,,List of images to evaluate
apertures,s,h,"",,,Apertures
references,s,h,"",,,"List of reference images
"
dmin,r,a,,,,Data minimum for sigma bins
dmax,r,a,,,,Data maximum for sigma bins
nbins,i,a,,1,,Number of sigma bins
interactive,b,h,yes,,,Run task interactively?
find,b,h,yes,,,Find apertures?
recenter,b,h,yes,,,Recenter apertures?
resize,b,h,yes,,,Resize apertures?
edit,b,h,yes,,,Edit apertures?
trace,b,h,yes,,,Trace apertures?
fittrace,b,h,yes,,,"Fit traced points interactively?
"
line,i,h,INDEF,1,,Dispersion line
nsum,i,h,10,,,Number of dispersion lines to sum or median
threshold,r,h,10.,,,"Division threshold for ratio fit
"
background,s,h,"none","none|average|median|minimum|fit",,Background to subtract
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