APO weather statistics For the period Mar 21, 1994 - Dec 8, 1995, (with many gaps in the time coverage) I find the following results: - 446 total nights - 385 (86%) the telescope enclosure was opened; 61 (14%) nights, the telescope was kept closed - 103 (23%) nights were "photometric", meaning "clear all night" 337 (76%) nights had at least some clouds 6 ( 1%) I couldn't tell - on nights when the enclosure was opened, the number of hours spent observing was < 1 1 - 3 3 - 5 5 - 7 7 - 9 9 - 11 > 11 ------------------------------------------------------------- nights 82 43 55 91 87 76 10 (21%) (11%) (20%) (24%) (24%) (20%) ( 3%) - on nights when seeing was reported, the average of values listed in the observing logs (from all instruments) was < 1.25 1.25 - 1.75 1.75 - 2.25 2.25 - 2.75 > 2.75 --------------------------------------------------------------- nights 36 172 70 21 11 (12%) (55%) (23%) ( 7%) ( 4%) I still haven't analyzed the long, long string of daily weather provided by the Sunspot solar observers; if anyone would like to do so, please let me know and I'll arrange access to the data. Michael Richmond APO APO APO APO APO Apache Point Observatory 3.5m APO APO APO APO APO This is message 30 in the apo35-general archive. You can find APO the archive on http://astro.princeton.edu:82/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