Hi all, For those of you that use my DISTOOLS package, you will need to upgrade to v2.11.3 since there are y2k problems in APALL (among other things). DISTOOLS seems to work fine with v2.11.3 except you will need to put the following line in your loginuser.cl file: reset imextn='oif:imh fxf:fit,fits plf:pl qpf:qp stf:hhh,??h' This makes ".fit" as the default FITS extension instead of ".fits". This is necessary b/c I have hardcoded file names in my code. Also, I have a new version of DISTOOLS that does telluric correction and outputs spectra in vacuum heliocentric coordinates instead of air geocentric. I have been meaning to release this for months now. Let me know if you are interested. Finally, assuming that the gains are still 0.99e/ADU and 1.50e/ADU, I get the following RN values for DIS: 10.88e in the blue and 15.20e in the red. Gordon APO APO APO APO APO Apache Point Observatory 3.5m APO APO APO APO APO This is message 76 in the apo35-dis archive. You can find APO the archive on http://www.astro.princeton.edu/APO/apo35-dis/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-dis@astro.princeton.edu APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO