Date: 2016 Nov 18 UT Observers: M Fausnaugh, S Johnson TO: Steve A. SA: Olga K. Moon phase: 3.5 days after full Summary: Clear, non-photometric (light cirrus) all night. Seeing was attrocious (1.5--3.0 arcseconds) and highly variable for the first 3/4ths of the night, then settled to a stable ~1 arcseconds for the end. Completed Programs: OSU_ASASSN15ll, OSU_ASASSN/iPTF16fnl, UM_LAE/sdssj0213, ND_carbon/jy2866, UM_LAE/j0825, OSU_ASASSN/AT2016coj badly violated seeing constraints: OSU_ASASSN16eq, OSU_ASASSN/AT201616eqa Calibrations: 2 standard stars tonight, calibration script deferred to afternoon UT 11/19. Details (All times UT): ---------------------------------- Plan is MODS all night (all observations binocular, except as noted). 00:20 -- Steve has taken sievesnap, MODS awake, ready! 00:29 -- Dome open 00:58 -- Colllimated, seeing ~2.2 arcseconds (!) clear skies, light cirrus 01:00 -- acquiring Feige 110 (standard star) 01:10 -- Observing Feige 110, seeing ~2.0 arcseconds (may have some slit losses) 01:24 -- acquiring OSU_ASASSN15ll (reran with double exposure time) 01:45 -- observing OSU_ASASSN15ll seeing ~1.5 arcseconds seeing highly variable between 1.3 and 2.0 arcseconds light cirrus throughout 03:17 -- acquiring OSU_ASASSN16eq (reran with double exposure time) 03:39 -- observing OSU_ASASSN16eq seeing ~1.6 arcseconds (seeing highly variable 1.3 to 2.0) moonrise in exposure 3 04:46 -- acquiring OSU_ASASSN/iPTF16fnl 05:05 -- observing OSU_ASASSN/iPTF16fnl seeing ~2 arcseconds seeing highly variable 1.5 to 3 arcseconds clear skies, non-photometric (light cirrus) 05:58 -- acquiring UM_LAE/sdssj0213 06:10 -- observing UM_LAE/sdssj0213 seeing ~1.8 arcseconds less variable seeing, 1.5 to 2.0 arcseconds 07:21 -- acquiring ND_carbon/jy2866 07:32 -- observing ND_carbon/jy2866 seeing ~1.4 arcseconds 08:25 -- acquiring ASASSN16eqa mods2: forced offset for "source" at x = 1501 y = 1529 (smudge matches expected location) 08:47 -- observing ASASSN16eqa MODS2 only (can't see source in MODS1) difficult to confirm in thru image 09:03 -- may have acquired on MODS1, running obs script highly variable seeing 0.8 to 1.8 arcseconds trace is visible in mods1 and mods2 red ! 10:24 -- acquiring UM_LAE/j0825 10:41 -- observing UM_LAE/j0825 seeing ~0.95 arcseconds (seeing is much more stable than before) 11:48 -- acquiring OSU_ASASSN/AT2016coj 12:04 -- observing OSU_ASASSN/AT2016coj seeing stable at ~1 arcsecond 12:33 -- 18 degree twlight begins (mid exposure 2) 12:50 -- acquiring feige34 mods2 IMCS lock timed out, then conflict with process from 'retry' aborted, but required without losing preset 13:10 -- observing feige34 (mods1) 13:14 -- observing feige34 (mods2) 13:26 -- closing up