Here's your first e-mail from the apo-grim discussion group! Has anyone been able to get a K-band calibration spectrum? I have not been able to detect argon at K-band. The lamp works (I detect lines at J and H bands) and GRIM works.... I've seen an argon K band spectrum taken at another observatory, and I would think our argon lamp would produce the same lines! And if you are thinking "just use night sky lines", could you tell me the wavelengths of the brightest night sky lines (in the J, H and K bands)? Thanks, Lauren Likkel APO APO APO APO APO Apache Point Observatory 3.5m APO APO APO APO APO This is message 1 in the apo35-grim archive. You can find APO the archive in /u/strauss/apo/mailer/apo35-grim on astro.princeton.edu APO To join/leave the list, send mail to apo35-request@astro.princeton.edu APO To post a message, mail it to apo35-grim@astro.princeton.edu APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO