INT OBSERVING LOG (ISAAC NEWTON GROUP, LA PALMA) TELESCOPE: INT DATE: 1999 OCT 11/12 INT TAPE NR: INTD4204 OBSERVER: S. T. Hodgkin PROGRAMME: WFS + M31 PATT/CAT: I/99B/WFS09 TELESCOPE OPERATOR: -- SUPPORT ASTRONOMER: -- FOCUS: Prime INSTRUMENT: WFC FILTER WHEEL (PF): U, g', r', i', Z, I(rgo) CAMERA (IDS): - COLLIMATOR (IDS): - COLL. FOCUS (IDS): - GRATING (IDS): - DETECTOR: - PIXELS: 4x2154x4200 PIXEL SIZE (microns): 13.5 WINDOW: - BINNING: in X=1, in Y=1 WEATHER: High humidity OUTSIDE TEMP (deg C): 4.5 (FIRST HALF) OUTSIDE TEMP (deg C): 4.5 (SECOND HALF) HUMIDITY (%): 75 (FIRST HALF) HUMIDITY (%): 95 (SECOND HALF) CLOUD COVER (%): (FIRST HALF) CLOUD COVER (%): 0 (SECOND HALF) DUST (0 - 2): (FIRST HALF) DUST (0 - 2): (SECOND HALF) SEEING (arcsec): 1.1 (FIRST HALF) SEEING (arcsec): --- (SECOND HALF) AV. SEEING (arcsec): NO. SEEING MEASURES: 0 UTC TELESCOPE CASELLA OUT CASELLA IN SEEING AZ ZD Focus TubeTemp Temp Humid Temp Humid Det./TV Comments DARK HOURS: 09:47 DOME OPEN (UTC): 19:00 MOON PHASE (D/G/B): D DK HRS LOST (WEATHER): 4:00 DK HRS LOST (TELESC): 00:00 (focus oscillation) DK HRS LOST (DOME): 00:00 DK HRS LOST (INSTR.): 00:00 DK HRS LOST (DET.): 00:00 DK HRS LOST (COMPS.): 00:00 DK HRS LOST (A&G): 00:00 DK HRS LOST (OTHER): 00:00 COMMENTS: High humidity eventually forced us to close - once at 23:@5 for 30 minutes then finally at 02:22 for therest of the night. WFS, M31 data ---- Run no. Object name RA Dec. Equinox AM PA UT Exp. T. Filter Psys Channel Binning Comments 197828 Bias frame 0:00:00.00 +00:00:00.0 A 1.138 180.0 14:47:11.7 0.0 g Sloan 197829 Bias 0:00:00.00 +00:00:00.0 A 1.138 180.0 18:34:35.9 0.0 r Sloan 197830 Bias 0:00:00.00 +00:00:00.0 A 1.138 180.0 18:35:35.8 0.0 r Sloan 197831 Bias 0:00:00.00 +00:00:00.0 A 1.138 180.0 18:36:34.8 0.0 r Sloan 197832 skyflat U 17:00:00.00 +41:00:00.0 J2000.00 1.159 180.0 19:08:32.7 20.1 U RGO 46K counts 197833 skyflat U 16:59:59.11 +40:59:50.0 J2000.00 1.164 180.0 19:10:29.8 40.1 U RGO saturated 197834 skyflat U 17:00:00.88 +41:00:10.0 J2000.00 1.168 180.0 19:12:37.2 20.1 U RGO 197835 skyflat U 16:59:59.11 +41:00:10.0 J2000.00 1.172 180.0 19:14:11.6 28.6 U RGO 197836 skyflat U 17:00:00.88 +40:59:50.0 J2000.00 1.177 180.0 19:16:26.8 0.0 U RGO 197837 skyflat g 17:00:00.00 +41:00:00.0 J2000.00 1.184 180.0 19:19:30.1 0.0 g Sloan 197838 skyflat g 17:00:00.88 +40:59:49.9 J2000.00 1.188 180.0 19:21:07.5 0.0 g Sloan blind open for 197839 skyflat g 16:59:59.11 +41:00:10.0 J2000.00 1.193 180.0 19:22:57.8 0.0 g Sloan flats to here 197840 skyflat r 17:00:00.00 +41:00:00.0 J2000.00 1.202 180.0 19:26:18.4 0.0 r Sloan too dark 197841 Focus run 18:42:45.00 +00:10:04.0 J2000.00 1.180 180.0 19:36:12.5 0.0 r Sloan 197842 Bias 18:42:45.00 +00:12:03.9 J2000.00 1.188 180.0 19:41:28.8 0.0 r Sloan 197843 sa110-361 g 18:42:45.00 +00:08:04.1 J2000.00 1.192 180.0 19:42:57.9 0.0 g Sloan 197844 sa110-361 r 18:42:45.00 +00:08:03.9 J2000.00 1.194 180.0 19:44:12.4 0.0 r Sloan 197845 sa110-361 i 18:42:45.00 +00:08:03.9 J2000.00 1.196 180.0 19:45:29.4 0.0 i Sloan 197846 sa110-361 Z 18:42:44.99 +00:08:04.0 J2000.00 1.198 180.0 19:46:46.1 0.0 z Gunn 197847 sa110-361 U 18:42:45.00 +00:08:04.0 J2000.00 1.201 180.0 19:48:34.7 0.0 U RGO 197848 sa110-361 I 18:42:45.00 +00:08:03.9 J2000.00 1.204 180.0 19:50:17.2 0.0 I INT-WFC 197849 Bias 18:42:44.99 +00:08:04.0 J2000.00 1.207 180.0 19:52:01.6 0.0 I INT-WFC 197850 wfsj1610+5430_036 16:11:54.00 +55:49:59.8 J2000.00 1.543 180.0 19:56:47.1 0.0 g Sloan 197851 wfsj1610+5430_036 16:11:53.99 +55:50:00.0 J2000.00 1.594 180.0 20:08:01.4 0.0 i Sloan 197852 wfsj1610+5430_036 16:11:54.00 +55:50:00.1 J2000.00 1.651 180.0 20:19:17.2 0.0 z Gunn 197853 wfsj1610+5445 r 16:15:41.92 +55:49:59.5 J2000.00 1.698 180.0 20:31:28.7 0.0 r Sloan wfsj1610+5430_45 197854 wfsj1610+5430_045 16:15:41.90 +55:49:59.9 J2000.00 1.765 180.0 20:42:41.3 0.0 g Sloan 197855 wfsj2240+0000_013 22:36:48.00 -00:20:00.0 J2000.00 1.229 180.0 20:57:52.2 0.0 r Sloan 197856 wfsj2240+0000_014 22:36:48.00 -00:00:00.0 J2000.00 1.200 180.0 21:10:35.7 0.0 r Sloan 197857 wfsj2240+0000_015 22:36:48.00 +00:19:59.9 J2000.00 1.178 180.0 21:22:35.3 0.0 r Sloan 197858 wfsj2240+0000_016 22:36:48.00 +00:39:59.8 J2000.00 1.159 180.0 21:34:38.1 0.0 r Sloan 197859 wfsj2240+0000_017 22:36:47.99 +00:59:59.9 J2000.00 1.144 180.0 21:47:15.5 0.0 r Sloan 197860 wfsj2240+0000_018 22:36:47.90 +01:19:59.9 J2000.00 1.133 180.0 21:59:09.5 0.0 r Sloan 197861 wfsj2240+0000_022 22:38:56.00 -00:19:59.8 J2000.00 1.146 180.0 22:12:23.0 0.0 r Sloan 197862 wfsj2240+0000_023 22:38:55.99 +00:00:00.0 J2000.00 1.140 180.0 22:24:22.4 0.0 r Sloan 197863 wfsj2240+0000_024 22:38:55.99 +00:20:00.0 J2000.00 1.138 180.0 22:36:17.9 0.0 r Sloan 197864 wfsj2240+0000_025 22:38:56.00 +00:39:59.9 J2000.00 1.139 180.0 22:49:01.6 0.0 r Sloan 197865 wfsj2240+0000_026 22:38:56.00 +01:00:00.0 J2000.00 1.144 180.0 23:00:58.9 0.0 r Sloan 197866 wfsj2240+0000_027 22:38:56.00 +01:19:59.8 J2000.00 1.150 180.0 23:12:54.2 0.0 r Sloan 197867 wfsj2240+0000_031 22:41:04.00 -00:20:00.0 J2000.00 1.247 180.0 00:00:53.3 0.0 r Sloan 197869 wfsj2240+0000_031 22:41:04.00 -00:19:59.8 J2000.00 1.302 180.0 00:20:55.7 0.0 r Sloan 197871 wfsj2240+0000_032 22:41:04.00 -00:00:00.0 J2000.00 1.349 180.0 00:36:17.7 0.0 r Sloan 197872 wfsj2240+0000_033 22:41:04.00 +00:20:00.0 J2000.00 1.395 180.0 00:49:05.9 0.0 r Sloan 197874 M31-microfld1 0:44:00.00 +41:34:00.0 J2000.00 1.034 180.0 01:07:17.4 0.0 r Sloan 197875 M31-microfld1 0:43:59.99 +41:34:00.0 J2000.00 1.037 180.0 01:14:21.4 358.0 r Sloan 197877 m31-microfld1 0:44:00.00 +41:34:00.0 J2000.00 1.045 180.0 01:25:24.9 0.0 g Sloan 197878 m31-microfld1 0:43:59.97 +41:34:00.0 J2000.00 1.050 180.0 01:32:27.5 0.0 g Sloan 197879 m31-microfld2 0:43:10.00 +40:58:14.9 J2000.00 1.060 180.0 01:45:10.4 0.0 r Sloan 197880 m31-microfld2 0:43:10.00 +40:58:14.9 J2000.00 1.068 180.0 01:52:15.8 0.0 r Sloan 197881 m31-microfld2 0:43:09.99 +40:58:15.0 J2000.00 1.085 180.0 02:05:30.9 0.0 g Sloan 197882 m31-microfld2 0:43:10.00 +40:58:15.0 J2000.00 1.095 180.0 02:12:32.7 0.0 g Sloan 197883 Bias 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 05:54:24.7 0.0 g Sloan 197884 Bias 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 05:55:29.0 0.0 g Sloan 197885 Bias 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 05:56:37.8 0.0 g Sloan 197886 Bias 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 05:58:01.6 0.0 g Sloan 197887 Bias 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 05:59:01.9 0.0 g Sloan