| input = "" | Image file name or @list file or wild-carded file name(s) | 
| specext = 0 | Spectrum extension number in multiextension FITS image | 
    
| specnum = 0 | Spectrum number in multispec or 2-D image | 
    
| specband = 0 | Spectrum band in multispec image | 
    
| pix1 = INDEF | First pixel to list. If INDEF, start with first pixel in this spectrum. | 
    
| pix2 = INDEF | Last pixel to list. If INDEF, end with last pixel in this spectrum. | 
    
| lambda1 = INDEF | Starting wavelength to list. If INDEF, start with first defined wavelength in this spectrum. | 
| lambda2 = INDEF | Ending wavelength to list. If INDEF, end with last defined wavelength in this spectrum. | 
| nsum = 1 | Number of pixels to sum across dispersion | 
| columns = "wf" | Print n=aperture/order p=pixel w=wavelength f=flux v=velocity d=deltawave | 
    
| numform = "%3d" | IRAF format for spectrum number/aperture/order | 
    
| pixform = "%4d" | IRAF format for spectrum pixel number | 
    
| fluxform = "%g" | IRAF format for flux output | 
    
| waveform = "%9.3f" | IRAF format for wavelength/log wavelength output | 
| renormalize = 0.0 | Renormalize data to this number (neg mean  pos max) | 
    
| printlim = no | Print values at only pix1 and pix2 if yes else pixels between | 
 
| printmid = no | Print center wavelength of spectrum if yes else not | 
 
| printmid = no | Print wavelength at center pixel of spectrum if yes else not |