I believe at least part of the saturation problem we saw was because I took the shutter off to do some work and forgot to completely clear the charges before the 10 second Arcturus exposure. I paid more attention to this the next day, and did not see the persistant saturation problem the following night. Shu-i APO APO APO APO APO Apache Point Observatory 3.5m APO APO APO APO APO This is message 10 in the apo35-echelle archive. You can find APO the archive on http://www.astro.princeton.edu/APO/apo35-echelle/INDEX.html APO To join/leave the list, send mail to apo35-request@astro.princeton.edu APO To post a message, mail it to apo35-echelle@astro.princeton.edu APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO