INT OBSERVING LOG (ISAAC NEWTON GROUP, LA PALMA) TELESCOPE: INT DATE: 20010823 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) 1.1 DOME OPENED (UT): 19:00 METEOROLOGICAL PARAMETERS LT AirT Hum% Wspd Gust Wdir Press LocT IntT Mirr LocRH IntRH 20:00 14.8 16 21.4 29.9 127 772.5 15.2 16.0 17.3 15 15 21:00 14.1 14 16.2 18.1 206 772.5 14.6 15.9 17.2 14 13 22:00 14.5 11 19.7 23.1 214 773.2 15.1 16.0 17.2 9 11 23:00 14.9 10 17.0 21.4 217 773.4 15.5 15.9 16.6 8 9 00:00 15.0 9 21.1 27.3 159 773.3 15.2 16.1 16.8 9 10 01:00 13.4 12 20.5 22.4 250 773.2 13.6 15.2 16.8 11 10 02:00 14.0 11 17.1 19.0 253 772.9 14.1 15.2 17.0 10 10 03:00 14.0 12 22.1 23.8 252 772.5 14.5 15.3 16.6 11 10 04:00 13.4 13 27.7 29.1 275 772.2 13.9 14.8 16.6 12 11 05:00 13.4 13 23.8 25.0 273 772.0 13.8 14.4 16.4 12 11 06:00 12.0 20 27.7 28.4 281 771.7 12.3 13.3 16.0 19 18 SUNSET(UT) 19:51 EVENING TWILIGHT(UT) 21:07 MORNING TWILIGHT(UT) 05:22 SUNRISE(UT) 06:38 MOON'S QUARTER (1-4) 1 DISK % OF ILLUM. 31 DARK TIME 08:15 TWILIGHT TIME 02:32 MOONRISE(UT) No moonrise within sunset-sunrise MOONSET(UT) 23:14 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 277226 Bias frame 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 13:52:06.9 0.0 B Harris 1 1 x 1 277227 Dark frame 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 13:53:04.2 15.0 B Harris 1 1 x 1 277228 Bias 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 15:56:21.0 0.0 I INT-WFC 1 1 x 1 277229 Bias 0:00:00.00 +00:00:00.0 J2000.00 4.554 180.0 16:05:02.0 0.0 I INT-WFC 1 1 x 1 277230 Bias 0:00:00.00 +00:00:00.0 J2000.00 4.554 180.0 16:05:43.1 0.0 I INT-WFC 1 1 x 1 277231 Bias 0:00:00.00 +00:00:00.0 J2000.00 4.554 180.0 16:06:22.9 0.0 I INT-WFC 1 1 x 1 277232 Bias 0:00:00.00 +00:00:00.0 J2000.00 4.554 180.0 16:07:02.5 0.0 I INT-WFC 1 1 x 1 277233 Bias 0:00:00.00 +00:00:00.0 J2000.00 4.554 180.0 16:07:41.7 0.0 I INT-WFC 1 1 x 1 277234 Bias 0:00:00.00 +00:00:00.0 J2000.00 4.554 180.0 16:08:20.7 0.0 I INT-WFC 1 1 x 1 277235 Bias 0:00:00.00 +00:00:00.0 J2000.00 4.554 180.0 16:08:60.0 0.0 I INT-WFC 1 1 x 1 277236 Bias 0:00:00.00 +00:00:00.0 J2000.00 4.554 180.0 16:09:39.5 0.0 I INT-WFC 1 1 x 1 277237 Bias 0:00:00.00 +00:00:00.0 J2000.00 4.554 180.0 16:10:19.0 0.0 I INT-WFC 1 1 x 1 277238 Skyflat B 1s 16:59:59.99 +41:00:00.0 J2000.00 1.023 180.0 19:59:48.8 2.4 B Harris 1 1 x 1 277239 Skyflat B 1s 17:00:01.77 +41:00:20.1 J2000.00 1.023 180.0 20:01:01.6 1.4 B Harris 1 1 x 1 277240 Skyflat B 1.5s 17:00:03.53 +41:00:39.8 J2000.00 1.023 180.0 20:02:04.6 1.6 B Harris 1 1 x 1 277241 Skyflat B 2.5s 17:00:05.30 +41:00:59.9 J2000.00 1.023 180.0 20:03:18.0 2.6 B Harris 1 1 x 1 277242 Skyflat B 4s 17:00:07.06 +41:01:19.9 J2000.00 1.023 180.0 20:04:36.2 4.1 B Harris 1 1 x 1 277243 Skyflat V 3s 17:00:07.06 +41:01:19.9 J2000.00 1.023 180.0 20:05:40.4 3.1 V Harris 1 1 x 1 277244 Skyflat V 3s 17:00:05.30 +41:01:00.0 J2000.00 1.023 180.0 20:06:50.9 3.1 V Harris 1 1 x 1 277245 Skyflat V 5s 17:00:03.53 +41:00:40.0 J2000.00 1.023 180.0 20:07:59.6 5.1 V Harris 1 1 x 1 277246 Skyflat V 7s 17:00:01.76 +41:00:20.0 J2000.00 1.024 180.0 20:09:11.3 7.1 V Harris 1 1 x 1 277247 Skyflat V 12s 17:00:00.00 +40:59:59.9 J2000.00 1.024 180.0 20:10:15.6 12.1 V Harris 1 1 x 1 277248 Skyflat I 10s 16:59:59.99 +40:59:59.9 J2000.00 1.024 180.0 20:11:25.5 10.1 I INT-WFC 1 1 x 1 277249 Skyflat I 15s 17:00:01.76 +41:00:20.0 J2000.00 1.024 180.0 20:12:53.3 15.1 I INT-WFC 1 1 x 1 277250 Skyflat I 22s 17:00:03.53 +41:00:39.9 J2000.00 1.024 180.0 20:14:11.7 22.1 I INT-WFC 1 1 x 1 277251 Skyflat I 35s 17:00:05.30 +41:00:59.9 J2000.00 1.024 180.0 20:15:49.4 35.1 I INT-WFC 1 1 x 1 277252 Skyflat I 50s 17:00:07.06 +41:01:20.0 J2000.00 1.025 180.0 20:17:24.4 50.1 I INT-WFC 1 1 x 1 277253 Focus run 18:43:09.00 -00:08:49.8 J2000.00 1.218 180.0 20:25:59.1 10.1 V Harris 1 1 x 1 277254 f_72 V 18:30:00.00 +36:00:00.0 J2000.00 1.029 180.0 20:33:26.5 599.4 V Harris 1 1 x 1 277255 f_72 V 18:29:59.99 +36:00:00.0 J2000.00 1.021 180.0 20:44:52.9 599.4 V Harris 1 1 x 1 277256 f_72 V 18:29:59.99 +36:00:00.0 J2000.00 1.015 180.0 20:56:28.2 599.4 V Harris 1 1 x 1 277257 f_73 V 18:32:59.99 +35:59:59.9 J2000.00 1.011 180.0 21:09:26.9 599.5 V Harris 1 1 x 1 277258 f_73 V 18:33:00.00 +36:00:00.0 J2000.00 1.009 180.0 21:20:52.3 599.4 V Harris 1 1 x 1 277259 f_73 V 18:32:59.99 +35:59:59.9 J2000.00 1.008 180.0 21:32:19.2 599.6 V Harris 1 1 x 1 277260 f_74 V 18:33:29.99 +36:35:00.0 J2000.00 1.011 180.0 21:45:33.7 599.4 V Harris 1 1 x 1 277261 f_74 V 18:33:30.00 +36:35:00.0 J2000.00 1.014 180.0 21:56:59.8 599.5 V Harris 1 1 x 1 277262 f_74 V 18:33:30.00 +36:34:59.9 J2000.00 1.019 180.0 22:08:26.2 599.4 V Harris 1 1 x 1 277263 f_75 V 18:32:39.99 +35:24:59.9 J2000.00 1.025 180.0 22:20:31.7 599.8 V Harris 1 1 x 1 277264 f_75 V 18:32:39.99 +35:25:00.0 J2000.00 1.034 180.0 22:31:57.8 599.4 V Harris 1 1 x 1 277265 f_75 V 18:32:40.00 +35:25:00.0 J2000.00 1.045 180.0 22:43:23.0 599.4 V Harris 1 1 x 1 277266 f_72 V 18:30:00.00 +36:00:00.0 J2000.00 1.064 180.0 22:55:55.2 599.6 V Harris 1 1 x 1 277267 f_73 V 18:33:00.00 +35:59:59.9 J2000.00 1.077 180.0 23:07:56.0 599.4 V Harris 1 1 x 1 277268 f_74 V 18:33:29.99 +36:35:00.0 J2000.00 1.096 180.0 23:19:55.9 599.1 V Harris 1 1 x 1 277269 f_75 V 18:32:40.00 +35:24:59.9 J2000.00 1.118 180.0 23:31:55.9 599.3 V Harris 1 1 x 1 277270 f_72 V 18:30:00.00 +35:59:59.9 J2000.00 1.150 180.0 23:44:13.7 599.8 V Harris 1 1 x 1 277271 f_73 V 18:32:59.99 +36:00:00.0 J2000.00 1.172 180.0 23:56:16.5 599.3 V Harris 1 1 x 1 277272 f_74 V 18:33:30.00 +36:34:59.9 J2000.00 1.203 180.0 00:08:20.5 599.5 V Harris 1 1 x 1 277273 f_75 V 18:32:40.00 +35:25:00.0 J2000.00 1.242 180.0 00:20:20.1 599.5 V Harris 1 1 x 1 277274 f_01 V 23:42:23.50 +27:05:01.0 J2000.00 1.129 180.0 00:33:59.0 599.5 V Harris 1 1 x 1 277275 f_02 V 23:44:23.50 +27:05:00.8 J2000.00 1.108 180.0 00:45:59.9 600.1 V Harris 1 1 x 1 277276 f_03 V 23:46:23.50 +27:05:00.9 J2000.00 1.089 180.0 00:57:59.9 599.5 V Harris 1 1 x 1 277277 f_04 V 23:46:23.49 +27:35:00.9 J2000.00 1.068 180.0 01:09:59.3 599.0 V Harris 1 1 x 1 277278 f_05 V 23:44:23.50 +27:35:01.0 J2000.00 1.049 180.0 01:21:57.6 599.5 V Harris 1 1 x 1 277279 f_06 V 23:42:23.49 +27:35:00.9 J2000.00 1.033 180.0 01:34:03.1 599.5 V Harris 1 1 x 1 277280 f_76 V 23:42:23.50 +28:10:00.0 J2000.00 1.021 180.0 01:46:41.9 599.6 V Harris 1 1 x 1 277281 f_76 V 23:42:23.50 +28:10:00.0 J2000.00 1.013 180.0 01:58:07.6 598.4 V Harris 1 1 x 1 277282 f_76 V 23:42:23.49 +28:09:59.9 J2000.00 1.007 180.0 02:09:33.8 599.4 V Harris 1 1 x 1 277283 f_77 V 23:44:54.99 +28:10:00.0 J2000.00 1.003 180.0 02:21:34.1 599.4 V Harris 1 1 x 1 277284 f_77 V 23:44:55.00 +28:09:59.9 J2000.00 1.001 180.0 02:32:59.4 599.5 V Harris 1 1 x 1 277285 f_77 V 23:44:55.00 +28:09:59.9 J2000.00 1.000 180.0 02:44:31.5 599.5 V Harris 1 1 x 1 277287 M31-microfld1 0:44:00.00 +41:34:00.1 J2000.00 1.037 180.0 03:01:39.8 319.7 r Sloan 1 1 x 1 277288 M31-microfld1 0:44:00.00 +41:33:59.9 J2000.00 1.033 180.0 03:08:18.2 319.7 r Sloan 1 1 x 1 277289 M31-microfld1 0:44:00.00 +41:33:59.9 J2000.00 1.031 180.0 03:14:57.3 319.8 i Sloan 1 1 x 1 277290 M31-microfld1 0:44:00.00 +41:34:00.0 J2000.00 1.029 180.0 03:21:37.4 320.0 i Sloan 1 1 x 1 277291 M31-microfld2 0:43:10.01 +40:58:15.0 J2000.00 1.024 180.0 03:29:21.0 319.8 r Sloan 1 1 x 1 277292 M31-microfld2 0:43:10.00 +40:58:15.0 J2000.00 1.023 180.0 03:35:59.5 319.8 r Sloan 1 1 x 1 277293 M31-microfld2 0:43:10.00 +40:58:14.9 J2000.00 1.023 180.0 03:42:37.1 319.7 i Sloan 1 1 x 1 277294 M31-microfld2 0:43:10.00 +40:58:15.0 J2000.00 1.023 180.0 03:49:15.8 319.8 i Sloan 1 1 x 1 277295 f_78 V 23:47:39.99 +28:09:59.9 J2000.00 1.041 180.0 03:57:56.4 599.2 V Harris 1 1 x 1 277296 f_78 V 23:47:40.00 +28:10:00.0 J2000.00 1.056 180.0 04:09:24.1 599.5 V Harris 1 1 x 1 277297 f_78 V 23:47:40.00 +28:09:59.9 J2000.00 1.073 180.0 04:20:50.4 600.1 V Harris 1 1 x 1 277298 f_79 V 23:50:20.00 +28:19:59.9 J2000.00 1.089 180.0 04:33:07.3 599.5 V Harris 1 1 x 1 277299 f_79 V 23:50:20.00 +28:20:00.0 J2000.00 1.111 180.0 04:44:40.1 598.9 V Harris 1 1 x 1 277300 f_79 V 23:50:20.00 +28:20:00.0 J2000.00 1.136 180.0 04:56:05.8 599.6 V Harris 1 1 x 1 277301 f_76 V 23:42:23.50 +28:09:59.9 J2000.00 1.189 180.0 05:08:32.9 599.4 V Harris 1 1 x 1 277302 f_79 V 23:50:19.99 +28:20:00.0 J2000.00 1.201 180.0 05:20:33.7 599.5 V Harris 1 1 x 1