xguiphot - Gui based aperture photometry task
	  xgphot - Xgterm based aperture photometry task

          impars - Edit the image data dependent parameters
         dispars - Edit the image display parameters
	findpars - Edit the object detection parameters
       omarkpars - Edit the object list marking parameters
         cenpars - Edit the object centering parameters
         skypars - Edit the object sky fitting parameters
	photpars - Edit the object aperture photometry parameters
       cplotpars - Edit the object contour plotting parameters
       splotpars - Edit the object surface area plotting parameters

	   xgex1 - Tutorial 1 on displaying and examining images  
	   xgex2 - Tutorial 2 on using objects lists
	   xgex3 - Tutorial 3 on doing quick-look photometry 
	   xgex4 - Tutorial 4 on measuring standard stars
	   xgex5 - Tutorial 5 on measuring a crowded field