LBT OSU/RC Partner OBserving Notes Date: 2015 January 21 UTC (Night 4 of 9) Observers: Paul Martini, Suk Sien Tie (OSU), Jake Turner (UVa) Support Astronomer: Olga Kuhn (remote) Telescope Operator: Steve Allanson SUMMARY: A few clouds in the start of the night, some clear spots, but then thickened at the end. Seeing gradually improved from 1.2 at the start to between 0.8 and 1 arcsec. Observations include UVa_Mgiants #10, UVa_BCD J0519, OSU_N925a, OSU_SN2014J, OSU_ASASSN 14lp, 14ms. Clouds gradually thickened during the last three programs, so we took one or more extra exposures for each. Observing Notes: All times are UTC unless otherwise noted 01:35 Pointing and Calibration 01:40 Standard G191B2B (just dg) acq 01:47 Standard G191B2B (just dg) obs seeing 1.2 weather: light clouds 02:05 UVa_Mgiants #10 medium ACQ 02:21 UVa_Mgiants #10 medium OBS Imaging at end 02:51 UVa_BCD J0519 ACQ 03:01 UVa_BCD J0519 OBS Seeing: 0.82 Weather: Clear 04:05 OSU_N925a acq 04:18 OSU_N925a obs Seeing: 0.81 Weather: Substantial clouds on the east 05:28 OSU_SN2014J acq 05:55 OSU_SN2014J acq Seeing 1.1 Weather: Moderate/thick cirrus Took an image of the field after alignment for confirmation, then a through-slit image. Alignment looks good, clouds do not. 06:30 Losing guide star on 2nd exposure, seeing increased to 1.3" 07:13 Seeing 1.1, moderate cirrus, guide star much more stable 08:00 Seeing 0.96, still cirrus on NE 08:45 Seeing 1.05, heavy cirrus on E but weather getting potentially better, guide star flux stable 09:09 OSU_SN2014J Obs sky fairly good at end of OB We took one extra spectrum due to clouds in the first few images. 09:39 OSU_ASASN14ms HA-3 acq 09:51 OSU_ASASN14ms HA-3 obs Seeing:1.1 Weather: cirrus and clouds to the North 10:21 OSU_ASASN14ms HA-3 obs Heavy clouds, so we are doing another exposure Guide star was gone for a little bit 10:31 SN14lp acq 10:46 SN14lp obs Seeing: 1.1 Weather: cirrusy and clouds to the North. Very cloudy after first exp. Guide Star was lost for most of exposure b.0024 and r.0049 Guide Star was lost for most of exposure b.0025 and r.0050 11:11 SN14lp obs started another 1 heavy clouds Guide star was lost for most of exposure b.0026 and r.0051 11:17 SN14lp obs started 2 more heavy clouds Guide star was lost for most of exposure b.0027 and r.0052 Guide star was lost for most of exposure b.0028 and r.0053 11:37 OSU_MClusters PraC acq ERROR: PRESET IIF error - PresetTelescope result status: Error, Stop{FLAO}[6214], no guide star found in guide box after resumeGuiding Guide star too faint, giving up (took no spectra) 11:49 Feige 34 dg acq 11:52 Feige 34 dg obs seeing: 1.2 weather: heavy clouds 12:09 Feige 34 dg obs again seeing: 1.2 weather: heavy clouds 12:31 XO-2b_new Calibrations Running XO2b_new.cal file once to check for saturation vflat: b.0034 and r.0061 : more time. Red is fine but blue doesn't show up hg ne : b.0035 and r.0062: saturated (2 and 0.1) xe kr :b.0036 and r.0063 : saturated (2 and 0.1) ar :b.0037 and r.0064 : red saturated 5 seconds and v2 is good for red 240 seconds and vflat2 is good for blue trying new arcs. 13:20 Running cal script for UVa_XO2b