LBT OSU/RC Observing Notes Date: 2015 May 18 Observers-- Fausnaugh, Garnavich (remote), Howk, Villanueva SA-- Olga Kuhn (on-call) TO-- Geno B. Summary: Observed 5 MODS targetsand 3 standard stars. Clear skies all night, with a slight haze at opening, and light cirrus in the second half of the night (non-photometric). Seeing stayed at or just below 1.0 arcseconds for most of the night, increasing to ~1.3 arcseconds for the last 1.5 hours. Completed Programs: OSU_ASASSN14lp, ND_void, OSU_M101_LS4, OSU_M101_7 Observed Targets: As above, + UVa_J1222+3602AGN Details (All times in UT. Seeing is estimated from GCS.) --------------------------------------------------------- Opened to mostly clear skies, some patchy cirrus on the horizon. 1:35-- OSU_M101 MOS calibrations 3:04-- feige66 acquisition (standard star) 3:10-- feige66 observation seeing: ~1.0 3:13-- 12 degree twilight. Sky is clear 3:36-- OSU_ASASSN14lp acquisition 3:54-- OSU_ASASSN14lp observation seeing: ~0.95 3:48-- 18 degree twilight. Sky is clear, very light haze. 4:30-- UVa_J1222+3602AGN acquisition 4:40-- UVa_J1222+3602AGN observation seeing: ~0.81 5:42-- ND_void acquisition 5:55-- ND_void observation seeing: ~1.00 sky is clear, light haze 6:31-- hz43 acquisition (standard star) 6:39-- hz43 observation seeing: ~0.90 sky is clear, light haze 6:56-- OSU_M101_LS4 acquisition (lost pointing, had to run .acq script twice) 7:14-- OSU_M101_LS4 observation seeing: ~0.90 skies are clear, light haze, galactic plane is up 8:00 some light cirrus moved in 8:25-- OSU_M101_7 acquisition 8:37-- OSU_M101_7 observation seeing: ~1.00 9:42-- Paused script after 3 exposures to flush active optics. 9:49-- Took another thru-image to double check alignment. Nothing has moved. 9:53-- Resumed OSU_M1017 observation seeing: ~1.2 light cirrus 10:43-- 18 degree twilight. Final exposure started 5 minutes ago, letting it finish. 11:01-- Bd33 acquisition 11:10-- Bd33 observation seeing: ~1.00 light cirrus