Observers: G. De Rosa, S. J. Schmidt Telescope Operator: S. Allenson Support Astronomer: O. Kuhn Instrument: LUCI Summary: Dome opened at 00:02. Executed programs: LBTB_j0244, OSU_Lensmass/HE0047, AZ_Macs0697, INAF_Hunt/GRB020127 (zJ configuration), UVa_BCD/HS0837, ND_SN11fe . The down time during the night has mainly been caused by errors in the scripts. Skyflats in J-H-K-Ks bands. Darks. Weather: At sunset-- clear ahead, cirrus at the horizon, humidity ~50%, T~3 C. Weather stable all night. Seeing < 0.8arcsec ~UT 12. UT 00:02 -- Dome opened LBTB_j0244 UT 01:13 -- acquisition -- average optical seeing from guider 0.7-arcsec UT 01:30 -- science spectrum UT 02:20 -- average optical seeing from guider 0.7” UT 03:12 -- average optical seeing from guider 0.7” UT 03:35 -- telluric star -- acquisition -- DIT for telluric star too high (non linear regime), edited the script to DIT=4,NDIT=3 Star is positioned too low on the detector, taking a new set of exposures with centered trace OSU_Lensmass/HE0047 UT 03:53 -- acquisition -- average optical seeing from guider 0.7-arcsec (guiding star brighter than 12 mag but wavefront sensor is ok) double image well resolved in acquisition UT 04:05 -- science exposure HK -- average optical seeing from guider 0.8" UT 04:14 -- science exposure J UT 04:25 -- telluric star acquisition -- average optical seeing 0.8" UT 04:34 -- telluric exposure HK UT 04:39 -- telluric exposure J -- guiding star out of the field for 2 of the offsets AZ_Macs0697 The optical seeing is ~0.8" at an airmass~1.6, and the seeing limit for the program is 1.2". Also, no airmass limit is specified in the readme. UT 04:46 -- acquisition -- average optical seeing from guider 1"-1.1" UT 05:02 -- stars not perfectly centered in the boxes (note, box~5"x5") additional shift of 0.83" in deltax and 0.97" in deltay UT 05:12 -- airmass 1.6, optical seeing from guider 1." UT 05:30 AGW technical issue -- rebooting -- (3 out of 12 exposures completed) UT 05:44 AGW issue recovered -- start again acquisition UT 05:56 exposure science (10 frames) -- average optical seeing from guider 0.8"-0.9" UT 06:21 -- average optical seeing from guider 0.9"-1." UT 06:53 -- slew to telluric star -- problem with guiding star not detected by AGW (no clear reason) UT 06:57 -- problem solved -- telluric star acquisition UT 07:07 -- telluric exposure UVa_BCD/j0519 UT 07:14 -- science acquisition -- average optical seeing from guider 0.5", but there are some collimation problems (vignetting) faint target -- long DIT, taken additional confirmation image (shifted in y) to obtain sky subtraction UT 07:34 -- filter wheel error -- camera wheel error -- Need to go to zenith to re-initialize since INAF_Hunt program would get too close to zenith around UT 11 (not doable) we move to next program INAF_Hunt/GRB020127_zJ UT 07:44 -- telluric acquisition (no finding chart, assuming it is the bright one in the center of the field) UT 07:54 -- telluric exposure -- average optical seeing from guider 0.7", wrong exposure script -- flux in non linear regime offset in order to avoid persistence -- new telluric readout: ** o2dcr DIT=6 NDIT=6 integrated ** -- max counts ~35000 (linear) but slightly high. For the telluric at the end of the exposure we will go for ** o2dcr DIT=4 NDIT=7 integrated ** UT 08:00 -- telluric exposure UT 08:04 -- object acquisition (PI suggests that host galaxy is bright enough for direct acquisition) -- script edited in order to obtain sky-subtracted acquisition image faint object -- not visible in acquisition image -- doubled NDIT -- still not visible Instrument issue (unrelated): PSF aberration -- not collimation issue UT 08:13 -- Try blind offset acquisition script -- wrong camera (N3.75) -- error camera wheel Need to go to zenith and change back camera UT 08:20 -- try blind acquisition with correct camera -- offset star well centered on slit UT 08:36 -- science exposure zJ -- average optical seeing from guider 0.7" UT 10:14 -- average optical seeing from guider 0.6" UT 10:41 -- slew to telluric UT 10:48 -- telluric exposure zJ NOTE: We have done half of the total requested time, so we do not know how to account for it. UVa_BCD/HS0837 UT 10:52 -- slew to science target UT 11:04 -- started science obs -- average optical seeing from guider 0.5" UT 11:26 -- slew to telluric ** NOTE: One of the newly submitted telluric scripts has the wrong camera for the acquisition exposure time changed to avoid non linear regime ** DIT 6 NDIT 6 o2dcr integrated ** UT 11:34 -- telluric exposure -- average optical seeing from guider 0.5" ND_SN11fe/ UT 11:37 -- slew to science target NOTE: low airmass, the target is just rising -- average optical seeing from guider 1.2" UT 11:53 -- science exposure zJ -- seeing is rising -- average optical seeing from guider 1.8"-2.1" UT 12:00 -- optical seeing variable 1."-1.6" UT 12:20 -- science exposure -- HK -- bad seeing ~ 2.5" UT 12:24 -- optical seeing variable 1.6"-1.8" UT 12:35 -- optical seeing variable 1.3"-2.5" UT 12:42 -- optical average seeing 1.7"-1.8" UT 12:48 -- optical average seeing 1.7"-1.8 UT 12:57 -- telluric acquisition problems with collimation due to high background, we are guiding but not collimating UT 13:04 -- telluric exposure HK NOTE: lost guiding in 2 dithering positions: guiding star out of patrol field UT 13:10 -- telluric exposure zJ UT 13:17 -- move to zenith for skyflats K-band -- good frames: 280-288, (max counts ~ 8000), 290-294 (max ~ 8000-9000) J-band -- good frames: 296-300, (max counts ~ 12000-15000) H-band -- good frames: 301-305, (max counts ~ 12000-18000) Ks-band -- good frames: 307-315 (max counts ~ 8000-13000) UT 13:44 -- Dome closed UT 14:00 -- Darks