Date: 2015/04/08 Observer: Michael Wood-Vasey OA: Dave Summers Number Observation Int Time Filter Airmass Seeing Notes # Ran through 11 junk frames after starting WHIRC 1-11 dark 5 16:2? OPAQ - - - # Waited one minute for lamp to warm up 12-22 flat 5 16:30 H - - lamps on at 425 # Waited 5 minutes for lamp to cool down (only meant to wait 1 minute). 23-33 flat 5 H - - lamps off 34-44 flat 5 16:3 Ks - - lamps off 45-55 flat 5 16:43 Ks - - lamps on at 380 # Waited 1 minute for lamp to warm up 56-66 flat 5 16:47 J - - lamps on at 600 # Waited 3 minutes for lamps to cool down 67-77 flat 5 J - - lamps off # Second half night, so insert waiting here... # wtk shutdown WHIRC # Early handover due to completion of previous program (2015A-0053) targets. # Restarted WHIRC at ~23:25 # observer@dust: setpropid 2012B-0500 # Ran set of 11 junk frames because I had just started up WHIRC again. # Data are being stored for WHIRC tonight at /data/data/08_Apr_15 78-86 S791-C 5 23:50 J 1.28 - acquire/focus 87-95 S791-C 5 23:52 J 1.28 0.7 3x3x30". Last four have typo in object name ("S791-Cer") because of inadvertant keypress 96-104 S791-C 5 23:55 H 1.28 0.7 3x3x30" 105-113 S791-C 5 00:00 Ks 1.28 - 3x3x30" 114-120 iPTF15xi 5 00:12 J 1.02 - acquire/focus; trefoil 121-145 iPTF15xi 60 00:18 J 1.02 0.7 5x5x15". trefoil clearly visible # Thought: I wonder if seeing the trefoil happens in part on stars near saturation, where the top is clipped and one just sees the wings of the PSF. E.g., I don't see the trefoil in the contours for the dimmer stars on the image, but perhaps that's just because I don't see enough of their wings. 146-156 iPTF15xi 60 00:50 H 1.06 0.65 5x5x15". interrupted # At 153, focus started drifting. Last 3 likely unreliable # obj_156 actually looked great. # Paused script 157-160 iPTF15xi 5 01:09 H 1.07 - Re-establishing WTTM 161 iPTF15xi 60 01:15 H 1.08 - Lost WTTM as as soon as it executed the move. # Dave went up to WTTM to check for snagged cables. # "WTTM Enabled" had been unselected. Possibly inadvertant mouse click? # Separate from the autofocus # *** FUTURE ACTION MITIGATION *** CHECK that "WTTM Enabled" is clicked *** 162-164 iPTF15xi 5 01:20 H 1.09 - Re-checking WTTM 165-177 iPTF15xi 60 01:22 H 1.09 0.7 Re-resuming sequence PSNJ15044009+1237540 178-180 PSNJ15.. 5 01:45 J 1.07 - Acquire/Focus. WTTM, but barely 181-202 PSNJ15.. 60 01:50 J 1.07 0.6 5x5x15". 203 - - - - - - Doesn't exist. "Failure to acquire" 204 PSNJ15.. 60 01:50 J 1.07 - Double image, don't use. 205 PSNJ15.. 60 01:50 J 1.07 - Final image OK. 206- PSNJ15.. 60 02:23 H 1.06 0.6 5x5x15". Interrupted 227-228 PSNJ15.. 60 02:23 H - - empty 229 good, but off field # Dave re-did pointing, came back to field and redid the 30" N offset from dither script. 230-232 PSNJ15.. 5 03:00 H - - re-acquire/focus 233-235 PSNJ15.. 60 03:02 H 1.07 - Resuming sequence. # Repeat sequence for H 236-240 PSNJ15.. 60 03:08 H 1.1 0.75 5x5x15". # Lost WTTM. Paused. obj_240 still looked good 241 PSNJ15.. 5 03:15 H - - reacquire 242-260 PSNJ15.. 60 03:16 H 1.1 - Resuming sequence. 261-262 S791-C 5 03:45 J 1.93 0.9 acquire/focus 263-271 S791-C 10 03:47 J 1.95 0.9 3x3x30" 272-280 S791-C 10 03:51 H 1.95 0.9 3x3x30" 281-289 S791-C 10 03:56 Ks 1.95 0.9 3x3x30" 290 Pointing star 5 04:04 J - - 30" off from nominal postion. clicked observed before telescope had been centered 291 ASASSN-15fs 5 04:04 J 1.12 - acquire 292 ASASSN-15fs 20 04:04 J 1.12 - acquire 293 ASASSN-15fs 60 04:06 J - - 4x4x20" started, but lone image. MWV did not enable WTTM 294-295 ASASSN-15fs 5 04:08 J - - reacquire WTTM 296-310 ASASSN-15fs 60 04:10 J 1.1 0.5 4x4x20" resume sequence 311-326 ASASSN-15fs 60 04:32 H - 0.6 4x4x20" 327-342 ASASSN-15fs 60 04:54 Ks 1.06 0.7 4x4x20" # Stepped outside, noticed thin clouds sufficient for a clear ring around the moon