This message is being sent to all listed contacts for APO 3.5m science programs scheduled for Dec. 3-19 (inclusive) plus institutional schedulers and apo35-general in order to notify you of the possibility of very short lead time pre-empts (schedule changes) which may be necessary in connection with either Echelle installation/commissioning activities or support of an expected WSMR mission. The situation at the site is now quite complex due to Echelle installation constrained by UC personnel travel schedules, the upcoming WSMR mission (their first in ages), intensive SDSS work including re-aluminization of the 2.5m primary, the holidays, winter weather, etc. We will do our best to carry out all scheduled science programs and to give as much advance warning as possible of any cancelations or changes, of course. The chance of schedule pre-empts currently appears to be particulary high during the week beginning Dec. 13th. Ed Turner APO APO APO APO APO Apache Point Observatory 3.5m APO APO APO APO APO This is message 325 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