/usr/lib/iraf/extern/rvsao/wlrange.par is in iraf-rvsao 2.8.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | # Parameters for WLRANGE task of IRAF package RVSAO 2.7.6
# Input Spectra
spectra,s,a,"",,,List of input spectra
specnum,s,h,"0",,,Spectrum aperture range if multispec or 2-D file
specband,i,h,0,,,Spectrum band if multispec file
specdir,s,h,"",,,Directory for input spectra
# Wavelength limits (values not set computed from input spectra)
st_lambda,r,h,INDEF,,,Starting wavelength in Angstroms to force
end_lambda,r,h,INDEF,,,Ending wavelength in Angstroms to force
pix_lambda,r,h,INDEF,,,Wavelength per pixel in Angstroms to force
npts,i,h,INDEF,,,Number of pixels for output spectrum to force
# Wavelength limits returned
wl1,r,h,INDEF,,,Reddest wavelength in Angstroms (output)
wl2,r,h,INDEF,,,Bluest wavelength in Angstroms (output)
dwl,r,h,INDEF,,,Wavelength per pixel in Angstroms (output)
npix,i,h,INDEF,,,Number of pixels (from file or set) (output)
# Velocity modification
velcomp,r,h,INDEF,,,Redshift composite velocity in km/sec (INDEF=ignore)
zcomp,r,h,INDEF,,,Redshift composite velocity in dlambda/lambda (overrides velcomp)
svel_corr,s,h,"none",none|file|heliocentric|barycentric|hfile,,"Spectrum velocity correction (none,file,helio,bary,hfile)"
nsum,i,h,1,,,"Number of pixels to sum across dispersion"
# Debugging
verbose,b,h,yes,,,Display final result (yes or no)
debug,b,h,no,,,Display intermediate results (yes or no)
mode,s,h,"ql",,,
# Jun 15 2009 New task
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