aidpars - Automatic line identification parameters and algorithm
   autoidentify - Automatically identify lines and fit dispersion
          bplot - Batch plots of spectra
      calibrate - Apply extinction and flux calibrations to spectra
      continuum - Fit the continuum in spectra
       deredden - Apply interstellar extinction correction
        dispcor - Dispersion correct and resample spectra
      disptrans - Transform dispersion units and apply air correction
         dopcor - Apply doppler corrections
       fitprofs - Fit gaussian profiles
       identify - Identify features in spectrum for dispersion solution
         lcalib - List calibration file data
         mkspec - Generate an artificial spectrum (obsolete)
          names - Generate a list of image names from a string
	 ndprep - Make neutral density filter calibration image
      odcombine - Combine spectra having different wavelength ranges (new)
     refspectra - Assign wavelength reference spectra to other spectra
     reidentify - Automatically identify features in spectra
      rspectext - Convert ascii text spectra to image spectra
     sapertures - Set or change aperture header information
         sarith - Spectrum arithmetic
	 sbands - Bandpass spectrophotometry of spectra
       scombine - Combine spectra having different wavelength ranges
        scoords - Set spectral coordinates as a pixel array (1D spectra only)
          scopy - Select and copy apertures in different spectral formats
       sensfunc - Create sensitivity function
     setairmass - Compute effective airmass and middle UT for an exposure
          setjd - Compute and set Julian dates in images
           sfit - Fit spectra and output fit, ratio, or difference
          sflip - Flip data and/or dispersion coordinates in spectra
        sinterp - Interpolate a table of x,y pairs to create a spectrum
       skytweak - Sky subtract 1D spectra after tweaking sky spectra
          slist - List spectrum header parameters
       specplot - Stack and plot multiple spectra
      specshift - Shift spectral dispersion coordinate systems
          splot - Preliminary spectral plot/analysis
       standard - Identify standard stars to be used in sensitivity calc
       telluric - Remove telluric features from 1D spectra
      wspectext - Convert 1D image spectra to ascii text spectra

                      ADDITIONAL HELP TOPICS

        package - Discussion and overview of package including sections on:
		    package parameters, units, and interpolation
	specwcs - Discussion and description of the spectral image formats
		    and the dispersion world coordinate system
      linelists - Description of the spectral line list library in
		    the directory linelists$.
       onedstds - Description of the spectral calibration library in the
		    directory onedstds$: extinction, flux standards, etc.