apall - Extract 1D spectra (all parameters in one task)
      apdefault - Set the default aperture parameters and apidtable
        apdemos - Various tutorial demonstrations
         apedit - Edit apertures interactively
	 apfind - Automatically find spectra and define apertures
	  apfit - Fit 2D spectra and output the fit, difference, or ratio
      apflatten - Remove overall spectral and profile shapes from flat fields
        apnoise - Compute and examine noise characteristics of spectra
         apmask - Create and IRAF pixel list mask of the apertures
    apnormalize - Normalize 2D apertures by 1D functions
     aprecenter - Recenter apertures
       apresize - Resize apertures
      apscatter - Fit and subtract scattered light
          apsum - Extract 1D spectra
	aptrace - Trace positions of spectra

		ADDITIONAL HELP TOPICS

   apbackground - Background subtraction algorithms
     approfiles - Profile determination algorithms
     apvariance - Extractions, variance weighting, cleaning, and noise model
	 extras - Information about the extra information in 3D images
        package - Package parameters and general description of package