INT OBSERVING LOG (ISAAC NEWTON GROUP, LA PALMA) TELESCOPE: INT DATE: 20010819 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) fair CLOUD COVER (%): (1st half) 0 (2nd half) 0 DUST (0-2): (1st half) 0 (2nd half) 0 SEEING (arcsec): (1st half) 2.0 (2nd half) 1.3 DOME OPENED (UT): 19:00 METEOROLOGICAL PARAMETERS LT AirT Hum% Wspd Gust Wdir Press LocT IntT Mirr LocRH IntRH 20:00 11.7 7 28.1 30.0 316 772.4 11.5 13.9 14.4 4 8 21:00 10.8 6 25.1 27.2 292 772.7 11.3 13.3 14.6 4 5 22:00 10.7 5 30.9 33.1 288 773.3 11.3 13.2 14.7 3 5 23:00 10.8 7 30.1 34.5 290 773.6 11.5 13.0 14.5 4 7 00:00 11.0 7 33.7 37.5 304 773.5 11.7 12.7 14.4 5 7 01:00 11.1 10 8.9 14.3 265 773.3 11.6 12.8 14.4 7 9 02:00 10.6 60 19.5 25.2 290 773.1 11.4 12.2 14.2 60 50 03:00 10.8 67 11.5 14.3 303 772.9 11.4 12.5 14.4 64 59 04:00 10.9 67 12.8 17.0 280 772.7 11.4 12.7 14.2 65 58 05:00 10.7 67 26.9 31.8 301 772.6 11.4 12.6 14.1 62 58 06:00 10.6 56 27.1 33.1 299 772.3 11.4 12.6 14.1 53 48 SUNSET(UT) 19:55 EVENING TWILIGHT(UT) 21:12 MORNING TWILIGHT(UT) 05:20 SUNRISE(UT) 06:36 MOON'S QUARTER (1-4) 1 DISK % OF ILLUM. 1 DARK TIME 08:08 TWILIGHT TIME 02:33 MOONRISE(UT) No moonrise within sunset-sunrise MOONSET(UT) 20:36 TIME LOST(WEATHER): 00:00 TIME LOST(TECHNICAL): 00:00 TIME LOST(OTHER): 00:00 Run no. Object name RA Dec. Equinox AM PA UT Exp. T. Filter Psys Channel Binning Comments 276868 Skyflat B 1s 16:59:59.99 +41:00:00.0 J2000.00 1.025 180.0 20:04:15.4 1.1 B Harris 1 x 1 276869 Skyflat B 1s 17:00:00.00 +40:59:59.9 J2000.00 1.024 180.0 20:06:52.5 1.1 B Harris 1 x 1 276870 Skyflat B 1.5s 16:59:59.99 +40:59:59.9 J2000.00 1.024 180.0 20:08:40.8 1.6 B Harris 1 x 1 276871 Skyflat B 2s 17:00:00.00 +41:00:00.0 J2000.00 1.024 180.0 20:09:42.3 2.1 B Harris 1 x 1 276872 Skyflat B 3.5s 16:59:59.99 +41:00:00.0 J2000.00 1.024 180.0 20:10:41.6 3.6 B Harris 1 x 1 276873 Skyflat B 5s 17:00:00.00 +41:00:00.0 J2000.00 1.024 180.0 20:11:46.5 5.1 B Harris 1 x 1 276874 Skyflat V 3s 17:00:00.00 +40:59:59.9 J2000.00 1.023 180.0 20:12:46.9 3.1 V Harris 1 x 1 276875 Skyflat V 7s 17:00:00.00 +40:59:59.9 J2000.00 1.023 180.0 20:13:54.2 7.1 V Harris 1 x 1 276876 Skyflat V 10s 17:00:01.76 +41:00:20.0 J2000.00 1.023 180.0 20:15:01.9 10.1 V Harris 1 x 1 276877 Skyflat V 16s 17:00:03.53 +41:00:39.9 J2000.00 1.023 180.0 20:16:19.8 16.1 V Harris 1 x 1 276878 Skyflat V 25s 17:00:05.30 +41:01:00.0 J2000.00 1.023 180.0 20:17:33.9 25.1 V Harris 1 x 1 276879 Skyflat I 15s 17:00:05.29 +41:01:00.0 J2000.00 1.023 180.0 20:18:58.7 15.1 I INT-WFC 1 x 1 276880 Skyflat I 22s 17:00:03.53 +41:00:40.0 J2000.00 1.023 180.0 20:20:16.9 22.1 I INT-WFC 1 x 1 276881 Skyflat I 35s 17:00:01.76 +41:00:20.1 J2000.00 1.023 180.0 20:21:35.8 35.1 I INT-WFC 1 x 1 276882 Skyflat I 60s 17:00:00.00 +40:59:59.9 J2000.00 1.023 180.0 20:23:14.6 59.6 I INT-WFC 1 x 1 276883 Skyflat I 90s 16:59:58.23 +40:59:40.0 J2000.00 1.024 180.0 20:25:33.6 90.1 I INT-WFC 1 x 1 276884 Focus run 18:43:08.99 -00:08:50.1 J2000.00 1.237 180.0 20:32:29.6 10.1 V Harris 1 x 1 276885 sa110-364 V 18:43:13.00 -00:12:19.9 J2000.00 1.226 180.0 20:36:30.3 20.1 V Harris 1 x 1 276886 sa110-364 B 18:43:13.00 -00:12:20.0 J2000.00 1.223 180.0 20:37:57.5 50.1 B Harris 1 x 1 276887 sa110-364 I 18:43:13.00 -00:12:19.9 J2000.00 1.219 180.0 20:39:53.2 20.1 I INT-WFC 1 x 1 276888 sa110-364 20s r 18:43:12.99 -00:12:19.9 J2000.00 1.216 180.0 20:41:23.6 20.1 r Sloan 1 x 1 276889 sa110-364 20s i 18:43:13.00 -00:12:19.9 J2000.00 1.214 180.0 20:42:49.7 20.1 i Sloan 1 x 1 276890 sa110-364 40s z 18:43:13.00 -00:12:19.9 J2000.00 1.211 180.0 20:44:11.9 40.1 z Gunn 1 x 1 276891 KS1731-260 60s z 17:34:13.47 -26:05:18.8 J2000.00 1.734 180.0 20:48:27.1 60.1 z Gunn 1 x 1 276892 KS1731-260 60s r 17:34:13.47 -26:05:18.5 J2000.00 1.734 180.0 20:50:26.6 60.0 r Sloan 1 x 1 276893 KS1731-260 60s r 17:34:13.47 -26:05:18.8 J2000.00 1.733 180.0 20:53:30.9 60.1 r Sloan 1 x 1 276894 KS1731-260 60s i 17:34:13.46 -26:05:18.6 J2000.00 1.734 180.0 20:57:34.6 59.6 i Sloan 1 x 1 276895 ngc6440 V 17:48:52.67 -20:21:34.4 J2000.00 1.526 180.0 21:02:22.2 299.6 V Harris 1 x 1 276896 ngc6440 B 17:48:52.65 -20:21:34.4 J2000.00 1.526 180.0 21:08:46.3 299.9 B Harris 1 x 1 276897 ngc6440 I 17:48:52.66 -20:21:34.5 J2000.00 1.529 180.0 21:15:07.4 499.5 I INT-WFC 1 x 1 276898 f_72 V 18:30:00.00 +36:00:00.1 J2000.00 1.010 180.0 21:27:07.7 599.3 V Harris 1 x 1 276899 f_72 V 18:30:00.00 +35:59:59.8 J2000.00 1.008 180.0 21:40:54.4 599.4 V Harris 1 x 1 276900 f_72 B 18:29:59.99 +36:00:00.0 J2000.00 1.009 180.0 21:52:24.7 599.5 B Harris 1 x 1 276901 f_72 I 18:30:00.00 +36:00:00.0 J2000.00 1.012 180.0 22:03:49.2 899.0 I INT-WFC 1 x 1 276902 f_72 V 18:29:59.99 +35:59:59.9 J2000.00 1.017 180.0 22:20:10.7 599.6 V Harris 1 x 1 276903 f_73 V 18:33:00.00 +36:00:00.0 J2000.00 1.023 180.0 22:32:02.8 599.3 V Harris 1 x 1 276904 f_73 B 18:32:59.99 +35:59:59.9 J2000.00 1.031 180.0 22:43:25.1 599.6 B Harris 1 x 1 276905 f_73 I 18:32:59.99 +36:00:00.2 J2000.00 1.044 180.0 22:54:50.3 899.1 I INT-WFC 1 x 1 276906 f_73 V 18:33:00.00 +35:59:59.9 J2000.00 1.060 180.0 23:11:12.6 598.8 V Harris 1 x 1 276907 f_74 V 18:33:29.99 +36:34:59.8 J2000.00 1.076 180.0 23:23:07.6 599.4 V Harris 1 x 1 276908 f_74 B 18:33:29.99 +36:34:59.8 J2000.00 1.094 180.0 23:34:28.3 599.5 B Harris 1 x 1 Seeing shot up 276909 f_74 I 18:33:29.99 +36:34:59.8 J2000.00 1.119 180.0 23:45:58.1 899.1 I INT-WFC 1 x 1 276910 f_74 V 18:33:30.00 +36:35:00.0 J2000.00 1.149 180.0 00:02:24.3 599.4 V Harris 1 x 1 276911 f_75 V 18:32:39.99 +35:24:59.8 J2000.00 1.179 180.0 00:14:15.3 599.4 V Harris 1 x 1 276912 f_75 B 18:32:39.99 +35:25:00.0 J2000.00 1.210 180.0 00:25:42.8 599.4 B Harris 1 x 1 276913 f_75 I 18:32:40.00 +35:24:59.8 J2000.00 1.254 180.0 00:37:04.1 899.1 I INT-WFC 1 x 1 276915 sa113-272 V 21:42:25.00 +00:20:03.9 J2000.00 1.137 180.0 01:06:35.0 20.1 V Harris 1 x 1 276916 sa113-272 B 21:42:25.00 +00:20:03.9 J2000.00 1.137 180.0 01:08:02.8 50.0 B Harris 1 x 1 276917 sa113-272 I 21:42:25.00 +00:20:03.9 J2000.00 1.138 180.0 01:09:56.6 20.1 I INT-WFC 1 x 1 276918 f_76 V 23:42:23.49 +28:09:59.9 J2000.00 1.080 180.0 01:13:45.5 599.6 V Harris 1 x 1 276919 f_76 V 23:42:23.50 +28:10:00.0 J2000.00 1.062 180.0 01:25:11.2 599.6 V Harris 1 x 1 276920 f_76 V 23:42:23.50 +28:10:00.0 J2000.00 1.047 180.0 01:36:37.9 599.4 V Harris 1 x 1 276921 f_76 V 23:42:23.49 +28:10:00.0 J2000.00 1.034 180.0 01:48:06.5 599.5 V Harris 1 x 1 276922 f_77 V 23:45:00.00 +28:10:00.0 J2000.00 1.024 180.0 02:00:43.2 599.5 V Harris 1 x 1 276923 f_77 V 23:44:59.99 +28:09:59.8 J2000.00 1.015 180.0 02:12:08.8 599.5 V Harris 1 x 1 276924 f_77 V 23:44:59.99 +28:10:00.0 J2000.00 1.009 180.0 02:23:34.4 599.4 V Harris 1 x 1 276925 f_77 V 23:45:00.00 +28:09:59.8 J2000.00 1.004 180.0 02:35:02.7 599.4 V Harris 1 1 x 1 276926 f_78 V 23:47:40.00 +28:10:00.0 J2000.00 1.001 180.0 02:47:42.6 599.5 V Harris 1 1 x 1 276927 f_78 V 23:47:39.99 +28:10:00.0 J2000.00 1.000 180.0 02:59:09.0 599.4 V Harris 1 1 x 1 276928 f_78 V 23:47:40.00 +28:09:59.9 J2000.00 1.001 180.0 03:10:35.1 599.3 V Harris 1 1 x 1 276929 f_78 V 23:47:40.00 +28:10:00.0 J2000.00 1.004 180.0 03:22:00.7 599.6 V Harris 1 1 x 1 276930 f_77 V 23:45:00.00 +28:10:00.0 J2000.00 1.010 180.0 03:34:06.8 599.6 V Harris 1 1 x 1 276931 f_78 V 23:47:40.00 +28:10:00.0 J2000.00 1.016 180.0 03:46:07.7 599.4 V Harris 1 1 x 1 276932 M31-microfld1 0:43:59.99 +41:34:00.0 J2000.00 1.025 180.0 03:59:08.7 319.8 r Sloan 1 1 x 1 276933 M31-microfld1 0:44:00.00 +41:34:00.0 J2000.00 1.026 180.0 04:05:47.6 319.9 r Sloan 1 1 x 1 276934 M31-microfld1 0:44:00.00 +41:34:00.1 J2000.00 1.027 180.0 04:12:24.6 319.8 i Sloan 1 1 x 1 276935 M31-microfld1 0:43:59.99 +41:34:00.0 J2000.00 1.028 180.0 04:19:03.3 319.8 i Sloan 1 1 x 1 276936 M31-microfld2 0:21:35.00 +20:29:07.4 J2000.00 1.029 180.0 04:26:44.6 319.7 r Sloan 1 1 x 1 276937 M31-microfld2 0:43:09.99 +40:58:15.0 J2000.00 1.032 180.0 04:33:22.3 319.8 r Sloan 1 1 x 1 276938 M31-microfld2 0:43:10.00 +40:58:14.9 J2000.00 1.035 180.0 04:40:00.5 319.8 i Sloan 1 1 x 1 276939 M31-microfld2 0:43:10.00 +40:58:14.9 J2000.00 1.039 180.0 04:46:38.4 319.8 i Sloan 1 1 x 1 276940 f_79 V 23:50:20.00 +28:20:00.0 J2000.00 1.100 180.0 04:55:03.2 599.5 V Harris 1 1 x 1 276941 f_79 V 23:50:20.00 +28:19:59.9 J2000.00 1.125 180.0 05:07:12.9 599.4 V Harris 1 1 x 1 276942 f_79 V 23:50:20.00 +28:20:00.0 J2000.00 1.153 180.0 05:18:57.9 599.5 V Harris 1 1 x 1