INT OBSERVING LOG (ISAAC NEWTON GROUP, LA PALMA) TELESCOPE: INT DATE: 20010820 TAPE NR: OBSERVER: P. Groot PROGRAMME: The faint sky variability survey PATT/CAT REF.: WFS01 TELESCOPE OPERATOR: none SUPPORT ASTRONOMER: C. Benn TELESCOPE FOCUS: 43.90 mm CALIBRATE RESULTS: not specified INSTRUMENT: WFC WFC FILTER WHEEL: B,V,r,I,i,Z WEATHER: (1st half) good (2nd half) good CLOUD COVER (%): (1st half) 0 (2nd half) 0 DUST (0-2): (1st half) 0 (2nd half) 0 SEEING (arcsec): (1st half) 1.1 (2nd half) 0.7-0.9 DOME OPENED (UT): 19:00 METEOROLOGICAL PARAMETERS LT AirT Hum% Wspd Gust Wdir Press LocT IntT Mirr LocRH IntRH 20:00 11.9 45 23.7 27.2 311 772.9 11.6 14.8 15.4 44 37 21:00 11.0 32 25.2 26.6 306 773.3 11.3 13.6 15.5 30 26 22:00 11.1 30 24.6 26.3 305 774.0 11.9 13.9 15.2 29 25 23:00 11.2 29 19.1 19.6 306 774.3 13.0 13.7 15.2 19 25 00:00 12.6 17 14.5 16.6 304 774.4 13.8 13.9 15.2 17 16 01:00 13.0 24 13.2 15.1 277 774.2 14.4 13.8 14.7 19 19 02:00 12.9 28 16.9 18.9 315 774.1 13.8 14.0 15.2 10 13 03:00 12.6 11 16.2 17.3 303 773.7 13.8 13.8 15.1 9 15 04:00 12.4 11 16.7 17.8 306 773.5 13.6 14.1 15.1 8 13 05:00 12.5 27 10.8 11.3 308 773.5 13.6 13.6 15.0 17 18 06:00 12.7 46 11.0 13.2 314 773.5 14.0 13.5 14.9 49 42 SUNSET(UT) 19:54 EVENING TWILIGHT(UT) 21:10 MORNING TWILIGHT(UT) 05:20 SUNRISE(UT) 06:36 MOON'S QUARTER (1-4) 1 DISK % OF ILLUM. 5 DARK TIME 08:10 TWILIGHT TIME 02:32 MOONRISE(UT) No moonrise within sunset-sunrise MOONSET(UT) 21:18 TIME LOST(WEATHER): 00:00 TIME LOST(TECHNICAL): 00:00 TIME LOST(OTHER): 00:00 COMMENTS: Electronic Log stopped working after 3 am. 0.7" seeing towards the end of the night. Run no. Object name RA Dec. Equinox AM PA UT Exp. T. Filter Psys Channel Binning Comments 276949 Dark frame 0:00:00.00 +00:00:00.0 J2000.00 4.198 180.0 11:07:58.9 600.0 z Gunn 1 1 x 1 276950 Dark frame 0:00:00.00 +00:00:00.0 J2000.00 4.198 180.0 11:18:38.6 600.0 z Gunn 1 1 x 1 276951 Dark frame 0:00:00.00 +00:00:00.0 J2000.00 4.198 180.0 11:29:18.4 600.0 z Gunn 1 1 x 1 276952 Dark frame 0:00:00.00 +00:00:00.0 J2000.00 4.198 180.0 11:39:57.6 600.0 z Gunn 1 1 x 1 276953 Dark frame 0:00:00.00 +00:00:00.0 J2000.00 4.198 180.0 11:50:37.3 600.0 z Gunn 1 x 1 276954 Dark frame 0:00:00.00 +00:00:00.0 J2000.00 4.198 180.0 12:01:16.5 600.0 z Gunn 1 x 1 276955 Preflash only 0:00:00.00 +00:00:00.0 J2000.00 4.198 180.0 12:17:44.9 0.0 z Gunn 1 x 1 276956 Bias frame 0:00:00.00 +00:00:00.0 J2000.00 1.422 180.0 12:58:31.4 0.0 B Harris 1 x 1 276957 Bias 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 16:26:10.2 0.0 r Sloan 1 x 1 276958 Bias 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 16:33:54.6 0.0 r Sloan 1 x 1 276959 Bias 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 16:34:39.0 0.0 r Sloan 1 x 1 276960 Bias 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 16:35:18.6 0.0 r Sloan 1 x 1 276961 Bias 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 16:35:58.0 0.0 r Sloan 1 x 1 276962 Bias 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 16:36:37.3 0.0 r Sloan 1 x 1 276963 Bias 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 16:37:16.3 0.0 r Sloan 1 x 1 276964 Bias 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 16:37:55.3 0.0 r Sloan 1 x 1 276965 Bias 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 16:38:34.4 0.0 r Sloan 1 x 1 276966 Bias 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 16:39:13.6 0.0 r Sloan 1 x 1 276967 Skyflat B 1s 16:59:59.99 +41:00:00.0 J2000.00 1.025 180.0 19:58:15.2 2.0 B Harris 1 x 1 Saturated 276968 Skyflat B 1s 16:59:59.99 +41:00:00.0 J2000.00 1.024 180.0 20:05:06.4 1.3 B Harris 1 x 1 276969 Skyflat B 1s 17:00:00.00 +40:59:59.9 J2000.00 1.024 180.0 20:06:12.1 1.4 B Harris 1 x 1 276970 Skyflat B 1.5s 17:00:00.00 +41:00:00.0 J2000.00 1.024 180.0 20:07:12.4 1.6 B Harris 1 x 1 276971 Skyflat B 2.5s 16:59:59.99 +41:00:00.0 J2000.00 1.023 180.0 20:08:15.0 2.6 B Harris 1 x 1 276972 Skyflat B 4s 17:00:00.00 +41:00:00.0 J2000.00 1.023 180.0 20:09:14.5 4.1 B Harris 1 x 1 276973 Skyflat V 3s 17:00:00.00 +40:59:59.9 J2000.00 1.023 180.0 20:10:18.1 3.1 V Harris 1 x 1 276974 Skyflat V 5s 17:00:00.00 +40:59:59.9 J2000.00 1.023 180.0 20:11:27.3 5.1 V Harris 1 x 1 276975 Skyflat V 10s 17:00:01.76 +41:00:19.8 J2000.00 1.023 180.0 20:12:56.0 10.1 V Harris 1 x 1 276976 Skyflat V 17s 17:00:03.53 +41:00:40.0 J2000.00 1.023 180.0 20:14:07.2 17.1 V Harris 1 x 1 276977 Skyflat V 25s 17:00:05.30 +41:01:00.0 J2000.00 1.023 180.0 20:15:34.9 25.1 V Harris 1 x 1 276978 Skyflat I 25s 17:00:05.30 +41:00:59.9 J2000.00 1.023 180.0 20:16:56.0 25.1 I INT-WFC 1 x 1 276979 Skyflat I 40s 17:00:03.53 +41:00:39.9 J2000.00 1.023 180.0 20:18:17.7 40.0 I INT-WFC 1 x 1 276980 Skyflat I 70s 17:00:01.76 +41:00:20.0 J2000.00 1.023 180.0 20:20:01.9 70.0 I INT-WFC 1 x 1 276981 Skyflat I 100s 17:00:00.00 +41:00:00.0 J2000.00 1.024 180.0 20:22:19.7 100.0 I INT-WFC 1 x 1 276982 Focus run 18:43:09.00 -00:08:49.9 J2000.00 1.236 180.0 20:28:53.5 10.1 V Harris 1 x 1 276983 sa110-364 V 18:43:13.00 -00:12:19.9 J2000.00 1.221 180.0 20:34:59.6 20.1 V Harris 1 x 1 276984 sa110-364 B 18:43:13.00 -00:12:20.0 J2000.00 1.218 180.0 20:36:29.0 50.1 B Harris 1 x 1 276985 sa110-364 I 18:43:13.00 -00:12:19.9 J2000.00 1.214 180.0 20:38:24.6 20.1 I INT-WFC 1 x 1 276987 ngc6440 V 17:48:52.66 -20:21:34.5 J2000.00 1.530 180.0 20:46:17.7 299.2 V Harris 1 x 1 276988 ngc6440 B 17:48:52.67 -20:21:34.4 J2000.00 1.527 180.0 20:52:37.6 299.8 B Harris 1 x 1 276989 ngc6440 I 17:48:52.67 -20:21:34.5 J2000.00 1.526 180.0 20:58:57.4 299.8 I INT-WFC 1 x 1 276990 f_72 V 18:29:59.99 +35:59:59.9 J2000.00 1.015 180.0 21:07:34.9 599.4 V Harris 1 x 1 276991 f_72 V 18:30:00.00 +36:00:00.0 J2000.00 1.011 180.0 21:19:01.7 599.5 V Harris 1 x 1 276992 f_72 V 18:30:00.00 +36:00:00.0 J2000.00 1.009 180.0 21:30:28.8 599.3 V Harris 1 x 1 276993 f_72 V 18:30:00.00 +36:00:00.0 J2000.00 1.008 180.0 21:41:56.8 599.5 V Harris 1 x 1 276994 f_73 V 18:33:00.01 +35:59:59.8 J2000.00 1.009 180.0 21:54:17.6 599.6 V Harris 1 x 1 276995 f_73 V 18:33:00.00 +36:00:00.1 J2000.00 1.012 180.0 22:05:45.9 599.5 V Harris 1 x 1 276996 f_73 V 18:33:00.00 +36:00:00.0 J2000.00 1.016 180.0 22:17:15.6 599.5 V Harris 1 x 1 276997 f_73 V 18:33:00.00 +35:59:59.9 J2000.00 1.023 180.0 22:28:42.6 599.4 V Harris 1 x 1 276998 f_74 V 18:33:30.00 +36:35:00.0 J2000.00 1.033 180.0 22:41:05.9 599.5 V Harris 1 x 1 276999 f_74 V 18:33:30.00 +36:35:00.0 J2000.00 1.044 180.0 22:52:32.1 599.5 V Harris 1 x 1 277000 f_74 V 18:33:30.00 +36:35:00.0 J2000.00 1.056 180.0 23:03:57.4 599.3 V Harris 1 x 1 277001 f_74 V 18:33:30.00 +36:34:59.9 J2000.00 1.071 180.0 23:15:23.0 599.5 V Harris 1 x 1 277002 f_75 V 18:32:39.99 +35:25:00.0 J2000.00 1.088 180.0 23:27:17.2 599.5 V Harris 1 x 1 277003 f_75 V 18:32:39.99 +35:25:00.0 J2000.00 1.108 180.0 23:38:43.6 599.4 V Harris 1 x 1 277004 f_75 V 18:32:39.99 +35:24:59.9 J2000.00 1.131 180.0 23:50:10.3 599.5 V Harris 1 x 1 277005 f_75 V 18:32:40.00 +35:25:00.0 J2000.00 1.157 180.0 00:01:35.5 599.0 V Harris 1 x 1 277006 sa113-272 V 21:42:21.00 +00:21:03.9 J2000.00 1.156 180.0 00:13:52.8 20.1 V Harris 1 x 1 277007 sa113-272 B 21:42:21.00 +00:21:04.0 J2000.00 1.154 180.0 00:15:21.6 50.1 B Harris 1 x 1 277008 sa113-272 I 21:42:20.99 +00:21:04.0 J2000.00 1.153 180.0 00:17:16.5 20.1 I INT-WFC 1 x 1 277009 sa113-272 V 21:42:21.00 +00:21:04.0 J2000.00 1.152 180.0 00:19:04.4 20.1 V Harris 1 x 1 277010 sa113-272 B 21:42:21.00 +00:21:04.0 J2000.00 1.150 180.0 00:20:31.7 50.1 B Harris 1 x 1 277011 sa113-272 I 21:42:21.00 +00:21:04.0 J2000.00 1.149 180.0 00:22:26.9 20.1 I INT-WFC 1 x 1 277012 sa113-272 V 21:42:21.00 +00:21:03.9 J2000.00 1.148 180.0 00:24:13.7 19.6 V Harris 1 x 1 277013 sa113-272 B 21:42:21.00 +00:21:04.0 J2000.00 1.146 180.0 00:25:41.9 50.1 B Harris 1 x 1 277014 sa113-272 I 21:42:21.00 +00:21:04.0 J2000.00 1.145 180.0 00:27:36.9 20.1 I INT-WFC 1 x 1 277015 sa113-272 V 21:42:20.99 +00:21:03.8 J2000.00 1.144 180.0 00:29:09.8 20.1 V Harris 1 x 1 277016 sa113-272 B 21:42:21.00 +00:21:04.0 J2000.00 1.143 180.0 00:30:36.4 50.0 B Harris 1 x 1 277017 sa113-272 I 21:42:20.99 +00:21:04.0 J2000.00 1.143 180.0 00:32:30.8 20.1 I INT-WFC 1 x 1 277018 f_76 V 23:42:23.49 +28:09:59.7 J2000.00 1.147 180.0 00:37:29.4 599.3 V Harris 1 x 1 277019 f_76 B 23:42:23.50 +28:10:00.0 J2000.00 1.121 180.0 00:48:50.6 599.5 B Harris 1 x 1 277020 f_76 I 23:42:23.49 +28:10:00.1 J2000.00 1.093 180.0 01:00:18.8 899.1 I INT-WFC 1 x 1 277021 f_76 V 23:42:23.50 +28:09:59.9 J2000.00 1.069 180.0 01:16:42.4 599.4 V Harris 1 x 1 277022 f_77 V 23:45:00.00 +28:10:00.0 J2000.00 1.056 180.0 01:28:37.6 599.5 V Harris 1 x 1 277023 f_77 B 23:44:59.99 +28:10:00.0 J2000.00 1.041 180.0 01:39:57.5 599.3 B Harris 1 x 1 277024 f_77 I 23:44:59.99 +28:10:00.1 J2000.00 1.027 180.0 01:51:17.3 899.3 I INT-WFC 1 x 1 277025 f_77 V 23:45:00.00 +28:10:00.0 J2000.00 1.016 180.0 02:07:45.6 599.5 V Harris 1 x 1 277026 f_78 V 23:47:39.99 +28:10:00.0 J2000.00 1.010 180.0 02:19:40.6 598.9 V Harris 1 1 x 1 277027 f_78 B 23:47:39.99 +28:09:59.9 J2000.00 1.005 180.0 02:31:00.6 599.4 B Harris 1 1 x 1 277028 f_78 I 23:47:40.00 +28:10:00.1 J2000.00 1.001 180.0 02:42:21.6 899.2 I INT-WFC 1 1 x 1