LBT OSURC Partner Observing Notes February 18, 2015 (Night 3) Observers: Sarah Jane Schmidt, Scott Adams, Jake Turner Support Astronomer: Dave Thompson (on call) Telescope Operator: Geno Bechetti Summary: Clear in the evening (a few clouds on the horizon). Opened with LBC and took sky flats (STD_Uspec, g-sdss, and R-bessel) and got one target before an LBC error. Once that was cleared, we worked through 16 targets, with borderline seeing (~1.2”) until UT 5:40, then good seeing (~0.8-0.9”) until UT 10:00, when it dropped again to ~1.1”. We had a filter error with the blue side around UT 11:15, which ultimately resulted in losing the blue side for the rest of the night. Continued with the red side to get r_sdss flats. Conditions were clear with light wind all night. Targets observed: OSU_Monitor/N628 OSU_Monitor/N925 OSU_Monitor/N2403 OSU_Monitor/M81 OSU_Monitor/M82 OSU_Monitor/N3344 OSU_Monitor/N3489 OSU_Monitor/N4214 OSU_Monitor/N4395 UVa_WISE_VLBA/WISE_0943 UVa_WISE_VLBA/WISE_1210 OSU_Monitor/N4736 OSU_Monitor/N4605 OSU_Monitor/N4826 OSU_Monitor/N4449 OSU_Monitor/N5474 OSU_Monitor/N4236 UT 0:29 test bias on LBC, looks good UT 0:35 10 biases - will take another set in the morning if these aren’t even UT 1:20 starting twilight flats Got 10 STD_Uspec sky flats between 14,000 and 35,000 (5 between 20,000 and 30,000) Got 10 g-sdss sky flats between 10,000 and 30,000 (4 between 20,000 and 30,000) Got 13 R-bessel sky flats between 10,000 and 35,000 (9 between 20,000 and 30,000) UT 2:00 slewing to OSU_Monitor/N628, starting dofpia 1.2 seeing UT 2:26 starting OSU_Monitor/N628.ob; 1.2” seeing UT 3:10 slewing to OSU_Monitor/N925 UT 3:20 starting OSU_Monitor/N925.ob; seeing 1.1” UT 3:38 red channel stopped during the first exposure (before readout). aborted exposure and contacted Dave; he told us the fix is to turn off systems and turn back on Didn’t work, or another thing went wrong, Dave took control to reboot systems UT 3:55 everything is fine! (skipping N925 - setting) UT 3:55 slewing to OSU_Monitor/N2403 UT 3:59 dofpia UT 4:03 found we were at a different object by mistake - and that object was too far over to get good data, aborted dofpia to move. UT 4:04 slewing to OSU_Monitor/N2403 UT 4:14 starting OSU_Monitor/N2403.ob; dofpia seeing 0.9” imexam seeing 1.3” UT 4:20 slewing to OSU_Monitor/M81 UT 4:32 starting M81.ob; dofpia seeing 0.9” imexam seeing 1.2” UT 4:46 slewing to OSU_Monitor/M82 skipping focus/copointing since it is so close to the last target and it and the previous target are both short OBs imexam seeing 1.3”; DIMM 1.3” UT 4:58 slewing to OSU_Monitor/N3344 UT 5:12 science obs started OSU_Monitor/N3344.ob imexam seeing 1.2” UT 5:42 slewing to OSU_Monitor/N3489 UT 5:53 science obs started OSU_Monitor/N3489 seeing ~0.9” in red, 1.4”? in blue UT 6:30 slewing to OSU_Monitor/N4214 UT 6:44 science obs OSU_Monitor/N4214 seeing ~0.8” Next object is very close, skipping dofpia UT 6:52 slewing to OSU_Monitor/N4395 UT 6:54 science obs OSU_Monitor/N4395 seeing ~0.8” UT 7:04 slewing to UVa_WISE_VLBA/WISE_0943 UT 7:16 Science obs UVa_WISE_VLBA/WISE_0943 Seeing ~0.7” (clear, light winds 10m/s) UT 7:30 slewing to UVa_WISE_VLBA/WISE_1210 UT 7:48 science ob: UVa_WISE_VLBA/WISE_1210 seeing still 0.7” UT 8:01 slewing to OSU_Monitor/N4736 UT 8:14 science ob: OSU_Monitor/N4736 Seeing 0.7” UT 08:30 slewing to OSU_Monitor/N4605 skipping focus/copointing. Target is nearby UT 08:32 science obs: OSU_Monitor/N4605 Seeing: 0.9” UT 8:47 slewing to OSU_Monitor/N4826 UT 8:58 starting science obs for OSU_Monitor/N4826 Seeing 0.9” The guiding failed on the U exposures on the blue side, but the images seem to not be affected. UT 9:36 slewing to OSU_Monitor/N4449 UT 9:48 starting science obs for OSU_Monitor/N4449 Seeing: 0.9” UT 10:04 slewing to OSU_Monitor/N5474 UT 10:11 starting science obs for OSU_Monitor/N5474 seeing: 1.1” UT 10:47 slewing to OSU_Monitor/N4236 UT 10:55 starting science obs for OSU_Monitor/N4236 seeing 1.1” UT 11:05 slewing to OSU_Monitor/M101 UT 11:13 starting science obs for OSU_Monitor/M101 Blue filter wheel error, noticed at 11:20 and aborted. Turned off and on the other systems (housekeeping page) UT 11:32 running science obs for OSU_Monitor/M101 again in the restart, the focus significantly degraded UT 11:35 dofpia UT 11:40 running science obs for OSU_monitor/M101 Blue filter error and rotator error. Called Dave, who went through a kill LBC UT 11:50 trying dofpia again - started out massively defocused. UT 12:06 running science obs for OSU_monitor/M101 Blue filter wheel error again. Dave running kill command again UT 12:18 trying science obs for OSU_monitor/M101 Blue filter wheel error again. The issue can’t be fixed tonight, so we are continuing on the red side (didn’t mark M101 as done because we didn’t get blue data). UT 12:48 finished exposure, waiting for twilight flat time UT 13:14 Started r_sdss twilight flats (red side only) bright star in first 10 flats (otherwise, there are 7 with counts between 10,000 and 30,000), moved to a new position to avoid it total, there are 16 between 10,000 and 40,000 and 8 between 20,000 and 30,000. UT 13:53 Biases. Blue ones would not take.