INT OBSERVING LOG (ISAAC NEWTON GROUP, LA PALMA) TELESCOPE: INT DATE: 20010822 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) 1.2 (2nd half) 1.2 DOME OPENED (UT): 19:45 METEOROLOGICAL PARAMETERS LT AirT Hum% Wspd Gust Wdir Press LocT IntT Mirr LocRH IntRH 20:00 17.7 12 5.0 7.1 243 774.1 17.2 18.3 17.9 11 11 21:00 16.5 12 6.5 9.2 111 774.5 17.1 18.2 18.1 10 9 22:00 16.1 11 7.1 13.0 176 775.0 17.5 17.7 18.0 9 9 23:00 16.5 10 5.5 6.7 91 775.5 17.6 17.6 18.1 9 9 00:00 15.2 9 4.9 6.8 271 775.5 16.6 17.2 17.8 7 8 01:00 15.1 10 2.5 3.6 93 775.3 16.9 17.1 17.6 8 9 02:00 15.5 10 0.9 3.3 100 775.0 16.8 17.0 17.7 8 9 03:00 15.8 9 6.8 9.4 101 774.8 17.3 17.1 17.6 7 8 04:00 15.3 10 5.3 8.6 53 774.5 16.8 17.1 17.5 8 8 05:00 14.4 11 3.7 4.3 116 774.4 16.6 16.7 17.5 8 9 06:00 14.6 12 2.4 3.3 21 774.0 16.4 16.6 17.3 10 10 SUNSET(UT) 19:52 EVENING TWILIGHT(UT) 21:08 MORNING TWILIGHT(UT) 05:22 SUNRISE(UT) 06:37 MOON'S QUARTER (1-4) 1 DISK % OF ILLUM. 21 DARK TIME 08:14 TWILIGHT TIME 02:31 MOONRISE(UT) No moonrise within sunset-sunrise MOONSET(UT) 22:36 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 277160 Bias frame 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 13:21:32.3 0.0 B Harris 1 1 x 1 277161 Skyflat B 1s 17:00:00.00 +41:00:00.0 J2000.00 1.023 180.0 20:01:22.4 2.2 B Harris 1 1 x 1 277162 Skyflat B 1s 16:59:59.99 +41:00:00.0 J2000.00 1.023 180.0 20:02:40.4 1.2 B Harris 1 1 x 1 277163 Skyflat B 1.5s 17:00:00.00 +40:59:59.9 J2000.00 1.023 180.0 20:03:52.6 1.1 B Harris 1 1 x 1 277164 Skyflat B 1.5s 16:59:59.99 +40:59:59.9 J2000.00 1.023 180.0 20:05:00.4 1.6 B Harris 1 1 x 1 277165 Skyflat B 3s 17:00:01.76 +41:00:19.9 J2000.00 1.023 180.0 20:05:58.0 3.1 B Harris 1 1 x 1 277166 Skyflat B 5s 17:00:03.53 +41:00:39.9 J2000.00 1.023 180.0 20:06:58.0 5.1 B Harris 1 1 x 1 277167 Skyflat V 5s 17:00:03.53 +41:00:40.0 J2000.00 1.023 180.0 20:08:03.3 5.1 V Harris 1 1 x 1 277168 Skyflat V 7s 17:00:01.76 +41:00:19.9 J2000.00 1.023 180.0 20:09:09.7 7.1 V Harris 1 1 x 1 277169 Skyflat V 10s 17:00:00.00 +41:00:00.0 J2000.00 1.023 180.0 20:10:15.5 10.1 V Harris 1 1 x 1 277170 Skyflat V 15s 16:59:58.23 +40:59:39.9 J2000.00 1.023 180.0 20:11:37.5 15.1 V Harris 1 1 x 1 277171 Skyflat V 22s 16:59:56.46 +40:59:19.9 J2000.00 1.023 180.0 20:12:53.8 22.1 V Harris 1 1 x 1 277172 Skyflat I 15s 16:59:56.46 +40:59:20.0 J2000.00 1.024 180.0 20:14:14.8 15.1 I INT-WFC 1 1 x 1 277173 Skyflat I 22s 16:59:58.23 +40:59:39.9 J2000.00 1.024 180.0 20:15:30.2 22.1 I INT-WFC 1 1 x 1 277174 Skyflat I 35s 16:59:59.99 +41:00:00.1 J2000.00 1.024 180.0 20:16:56.5 35.1 I INT-WFC 1 1 x 1 277175 Skyflat I 50s 17:00:01.76 +41:00:20.0 J2000.00 1.024 180.0 20:18:27.8 50.0 I INT-WFC 1 1 x 1 277176 Skyflat I 80s 17:00:03.53 +41:00:40.0 J2000.00 1.025 180.0 20:20:17.4 80.0 I INT-WFC 1 1 x 1 277177 Focus run 18:43:09.00 -00:08:50.0 J2000.00 1.224 180.0 20:26:52.7 10.1 V Harris 1 1 x 1 277178 Focus run 18:43:09.00 -00:08:49.8 J2000.00 1.211 180.0 20:33:38.9 10.1 V Harris 1 1 x 1 277179 f_75 V 18:32:39.99 +35:24:59.9 J2000.00 1.028 180.0 20:39:30.4 599.4 V Harris 1 1 x 1 277180 f_74 V 18:33:29.99 +36:35:00.0 J2000.00 1.023 180.0 20:51:31.5 599.6 V Harris 1 1 x 1 277181 f_73 V 18:33:00.00 +36:00:00.0 J2000.00 1.015 180.0 21:03:42.4 599.5 V Harris 1 1 x 1 277182 f_72 V 18:30:00.00 +35:59:59.9 J2000.00 1.010 180.0 21:15:48.3 599.6 V Harris 1 1 x 1 277183 f_75 V 18:32:40.00 +35:25:00.0 J2000.00 1.007 180.0 21:28:01.0 598.9 V Harris 1 1 x 1 277184 f_74 V 18:33:30.00 +36:34:59.9 J2000.00 1.010 180.0 21:40:02.4 599.4 V Harris 1 1 x 1 277185 f_73 V 18:33:00.00 +35:59:59.9 J2000.00 1.010 180.0 21:52:02.0 599.8 V Harris 1 1 x 1 277186 f_72 V 18:30:00.00 +36:00:00.0 J2000.00 1.015 180.0 22:04:02.4 599.7 V Harris 1 1 x 1 277187 Focus run 18:30:00.00 +36:02:30.1 J2000.00 1.020 180.0 22:18:38.6 9.6 V Harris 1 1 x 1 277188 f_75 V 18:32:40.00 +35:24:59.9 J2000.00 1.025 180.0 22:24:27.2 599.5 V Harris 1 1 x 1 277189 f_74 V 18:33:30.00 +36:35:00.1 J2000.00 1.036 180.0 22:36:29.0 599.1 V Harris 1 1 x 1 277190 f_73 V 18:33:00.00 +36:00:00.0 J2000.00 1.049 180.0 22:50:36.7 599.6 V Harris 1 1 x 1 277191 f_72 V 18:30:00.00 +36:00:00.0 J2000.00 1.068 180.0 23:02:38.1 599.4 V Harris 1 1 x 1 277192 f_75 V 18:32:40.00 +35:25:00.1 J2000.00 1.081 180.0 23:14:48.4 599.4 V Harris 1 1 x 1 277193 f_74 V 18:33:29.99 +36:34:59.9 J2000.00 1.101 180.0 23:26:49.6 599.5 V Harris 1 1 x 1 277194 f_73 V 18:33:00.00 +36:00:00.1 J2000.00 1.124 180.0 23:38:51.4 599.4 V Harris 1 1 x 1 277195 f_72 V 18:30:00.00 +35:59:59.9 J2000.00 1.157 180.0 23:50:53.0 599.4 V Harris 1 1 x 1 277196 f_79 V 23:50:20.00 +28:19:59.8 J2000.00 1.234 180.0 00:07:02.6 599.0 V Harris 1 1 x 1 277197 f_78 V 23:47:39.99 +28:10:00.1 J2000.00 1.189 180.0 00:19:03.6 598.9 V Harris 1 1 x 1 277198 f_76 V 23:42:23.50 +28:10:00.0 J2000.00 1.143 180.0 00:31:04.4 599.5 V Harris 1 1 x 1 277199 f_79 V 23:50:20.00 +28:19:59.9 J2000.00 1.133 180.0 00:43:06.5 599.5 V Harris 1 1 x 1 277200 f_77 V 23:44:54.99 +28:09:59.9 J2000.00 1.097 180.0 00:55:06.7 599.0 V Harris 1 1 x 1 277201 f_76 V 23:42:23.49 +28:10:00.1 J2000.00 1.072 180.0 01:07:08.7 599.4 V Harris 1 1 x 1 277202 f_77 V 23:44:55.00 +28:09:59.9 J2000.00 1.058 180.0 01:19:11.2 599.6 V Harris 1 1 x 1 277203 f_79 V 23:50:19.99 +28:19:59.8 J2000.00 1.049 180.0 01:31:12.0 599.5 V Harris 1 1 x 1 277204 f_78 V 23:47:40.00 +28:10:00.0 J2000.00 1.031 180.0 01:44:37.8 599.3 V Harris 1 1 x 1 277205 f_77 V 23:44:55.00 +28:10:00.0 J2000.00 1.018 180.0 01:56:39.6 599.6 V Harris 1 1 x 1 277206 f_76 V 23:42:23.49 +28:09:59.9 J2000.00 1.009 180.0 02:08:39.5 599.3 V Harris 1 1 x 1 277207 f_78 V 23:47:39.99 +28:10:00.0 J2000.00 1.006 180.0 02:20:42.6 599.4 V Harris 1 1 x 1 277208 f_78 V 23:47:40.00 +28:10:00.0 J2000.00 1.002 180.0 02:32:07.8 599.6 V Harris 1 1 x 1 277209 f_79 V 23:50:20.00 +28:19:59.9 J2000.00 1.000 180.0 02:44:09.8 599.4 V Harris 1 1 x 1 277210 f_76 V 23:42:23.50 +28:09:59.8 J2000.00 1.001 180.0 02:56:10.8 599.4 V Harris 1 1 x 1 277211 f_77 V 23:44:54.99 +28:09:59.9 J2000.00 1.004 180.0 03:08:12.3 599.5 V Harris 1 1 x 1 277212 M31-microfld1 0:44:00.00 +41:34:00.0 J2000.00 1.030 180.0 03:21:20.9 319.8 r Sloan 1 1 x 1 277213 M31-microfld1 0:44:00.00 +41:33:59.9 J2000.00 1.028 180.0 03:27:58.4 319.7 r Sloan 1 1 x 1 277214 M31-microfld1 0:43:59.99 +41:33:59.9 J2000.00 1.026 180.0 03:34:37.2 319.8 i Sloan 1 1 x 1 277215 M31-microfld1 0:44:00.00 +41:33:59.9 J2000.00 1.026 180.0 03:41:16.8 319.8 i Sloan 1 1 x 1 277216 M31-microfld2 0:43:09.98 +40:58:15.1 J2000.00 1.023 180.0 03:48:57.7 319.3 r Sloan 1 1 x 1 277217 M31-microfld2 0:43:10.00 +40:58:14.9 J2000.00 1.024 180.0 03:55:37.4 319.7 r Sloan 1 1 x 1 277218 M31-microfld2 0:43:10.00 +40:58:15.0 J2000.00 1.025 180.0 04:02:16.0 319.8 i Sloan 1 1 x 1 277219 M31-microfld2 0:43:10.00 +40:58:14.9 J2000.00 1.027 180.0 04:09:02.3 319.8 i Sloan 1 1 x 1 277220 f_78 V 23:47:40.00 +28:10:00.0 J2000.00 1.063 180.0 04:18:12.3 599.5 V Harris 1 1 x 1 277221 f_77 V 23:44:55.00 +28:09:59.9 J2000.00 1.086 180.0 04:30:14.6 598.9 V Harris 1 1 x 1 277222 f_76 V 23:42:23.50 +28:09:59.9 J2000.00 1.114 180.0 04:42:16.1 599.3 V Harris 1 1 x 1 277223 f_79 V 23:50:20.00 +28:19:59.9 J2000.00 1.123 180.0 04:54:17.7 599.1 V Harris 1 1 x 1 277224 f_78 V 23:47:40.00 +28:10:00.0 J2000.00 1.158 180.0 05:06:20.0 599.3 V Harris 1 1 x 1 277225 f_77 V 23:44:54.99 +28:09:59.9 J2000.00 1.199 180.0 05:18:21.2 599.5 V Harris 1 1 x 1