I have a bit of a strange request. To answer a referee on a DIS paper, I need a few minutes of time with DIS to observe a star, HD157787, A2V, through clouds (!!). I got all the scattered light test data I needed except this one exposure set, on Aug. 30(UT), but it was clear all night, so did not get subject information. (Guess the "strangeness" of the request is now clear. The results of this fairly exhaustive set of exposures will be of use to others, as I plan to right it up. Jon Holtzmann, Rich Kron, Lew Hobbs, and Jack Dembicky have all been instrumental in helping me do this set of scattered light tests, and I thank them. Several options that would help. 1) First half, with instrument set up the same as I need. (DIS blue hi 4300, red hi 6600, 1.5 arcsec slit). I can be on guard on a night that looks like clouds are likely, come in on one hours notice, do the test in 10 minutes and be gone. 2) First half, DIS on, I change gratings, do my cals, do test, reset gratings, recalibrate for you (or you can do it yourself). That would all take one hour. 3) If a willing soul exists but only for second half time, I can find another star, and all of the above apply. Specific nights I can do this are Sept. 1, 7-15, Sept. 24-30. Suzanne and Bruce, maybe I could sneak this in on engineering time if the setup is not disturbing to other plans? -- Dr. Donald G. York Horace B. Horton Professor of Astronomy and Astrophysics APO APO APO APO APO Apache Point Observatory 3.5m APO APO APO APO APO This is message 925 in the apo35-general archive. You can find APO the archive on http://www.astro.princeton.edu/APO/apo35-general/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-general@astro.princeton.edu APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO