INT OBSERVING LOG (ISAAC NEWTON GROUP, LA PALMA) TELESCOPE: INT DATE: 20010825 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) 1 (2nd half) 1 SEEING (arcsec): (1st half) 0.9 (2nd half) 0.9 DOME OPENED (UT): 18:30 METEOROLOGICAL PARAMETERS LT AirT Hum% Wspd Gust Wdir Press LocT IntT Mirr LocRH IntRH 05:00 13.6 9 25.9 26.6 345 772.6 14.0 14.7 15.7 8 9 06:00 13.6 10 27.2 29.4 350 772.4 13.9 14.2 15.4 8 10 SUNSET(UT) 19:49 EVENING TWILIGHT(UT) 21:04 MORNING TWILIGHT(UT) 05:24 SUNRISE(UT) 06:39 MOON'S QUARTER (1-4) 2 DISK % OF ILLUM. 52 DARK TIME 08:20 TWILIGHT TIME 02:30 MOONRISE(UT) No moonrise within sunset-sunrise MOONSET(UT) 00:34 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 277384 Bias frame 0:00:00.00 +00:00:00.0 A 4.687 180.0 13:45:25.9 0.0 V Harris 1 x 1 277385 Bias 0:00:00.00 +00:00:00.0 A 4.688 180.0 16:29:57.6 0.0 i Sloan 1 x 1 277386 Bias 0:00:00.00 +00:00:00.0 A 4.688 180.0 16:30:37.7 0.0 i Sloan 1 x 1 277387 Bias 0:00:00.00 +00:00:00.0 A 4.688 180.0 16:31:17.3 0.0 i Sloan 1 x 1 277388 Bias 0:00:00.00 +00:00:00.0 A 4.688 180.0 16:31:56.9 0.0 i Sloan 1 x 1 277389 Bias 0:00:00.00 +00:00:00.0 A 4.688 180.0 16:32:36.4 0.0 i Sloan 1 x 1 277390 Bias 0:00:00.00 +00:00:00.0 A 4.688 180.0 16:33:15.7 0.0 i Sloan 1 x 1 277391 Bias 0:00:00.00 +00:00:00.0 A 4.688 180.0 16:33:54.7 0.0 i Sloan 1 x 1 277392 Bias 0:00:00.00 +00:00:00.0 A 4.688 180.0 16:34:33.8 0.0 i Sloan 1 x 1 277393 Bias 0:00:00.00 +00:00:00.0 A 4.688 180.0 16:35:13.1 0.0 i Sloan 1 x 1 277394 Bias 0:00:00.00 +00:00:00.0 A 4.688 180.0 16:35:52.7 0.0 i Sloan 1 x 1 277395 Skyflat B 1s 17:00:00.00 +41:00:00.1 J2000.00 1.023 180.0 19:59:55.4 2.1 B Harris 1 x 1 277396 Skyflat B 1.5s 16:59:59.99 +40:59:59.9 J2000.00 1.023 180.0 20:01:08.0 1.6 B Harris 1 x 1 277397 Skyflat B 3s 17:00:00.00 +40:59:59.9 J2000.00 1.024 180.0 20:02:05.9 3.1 B Harris 1 x 1 277398 Skyflat B 5s 17:00:01.76 +41:00:19.9 J2000.00 1.024 180.0 20:03:05.3 5.1 B Harris 1 x 1 277399 Skyflat B 5s 17:00:03.53 +41:00:40.0 J2000.00 1.024 180.0 20:04:10.7 4.6 B Harris 1 x 1 277400 Skyflat V 5s 17:00:03.53 +41:00:40.0 J2000.00 1.024 180.0 20:05:12.4 5.1 V Harris 1 x 1 277401 Skyflat V 7s 17:00:01.76 +41:00:19.9 J2000.00 1.024 180.0 20:06:20.7 6.6 V Harris 1 x 1 277402 Skyflat V 10s 16:59:59.99 +41:00:00.0 J2000.00 1.024 180.0 20:07:26.7 9.6 V Harris 1 x 1 277403 Skyflat V 17s 16:59:58.23 +40:59:39.9 J2000.00 1.024 180.0 20:08:35.9 17.1 V Harris 1 x 1 277404 Skyflat V 25s 16:59:56.46 +40:59:20.0 J2000.00 1.025 180.0 20:09:55.0 25.1 V Harris 1 x 1 277405 Skyflat I 20s 16:59:56.46 +40:59:19.9 J2000.00 1.025 180.0 20:11:17.3 20.1 I INT-WFC 1 x 1 277406 Skyflat I 30s 16:59:58.23 +40:59:40.0 J2000.00 1.025 180.0 20:12:41.5 30.1 I INT-WFC 1 x 1 277407 Skyflat I 45s 17:00:00.00 +41:00:00.0 J2000.00 1.026 180.0 20:14:19.2 45.1 I INT-WFC 1 x 1 277408 Skyflat I 70s 17:00:01.76 +41:00:20.0 J2000.00 1.026 180.0 20:16:02.2 70.0 I INT-WFC 1 x 1 277409 Skyflat I 100s 17:00:03.53 +41:00:39.9 J2000.00 1.027 180.0 20:18:09.5 100.0 I INT-WFC 1 x 1 277410 Focus run 18:43:08.99 -00:08:49.8 J2000.00 1.203 180.0 20:25:53.8 10.1 V Harris 1 x 1 277411 sa110-364 V 18:43:08.99 -00:11:20.2 J2000.00 1.193 180.0 20:30:51.6 19.6 V Harris 1 x 1 277412 sa110-364 B 18:43:08.99 -00:11:19.9 J2000.00 1.190 180.0 20:32:18.5 50.1 B Harris 1 x 1 277413 sa110-364 I 18:43:09.00 -00:11:20.0 J2000.00 1.188 180.0 20:34:15.0 20.1 I INT-WFC 1 x 1 277414 sa110-364 V 18:43:09.00 -00:11:19.9 J2000.00 1.185 180.0 20:36:05.2 20.1 V Harris 1 x 1 277415 sa110-364 B 18:43:09.00 -00:11:19.9 J2000.00 1.183 180.0 20:37:36.7 50.1 B Harris 1 x 1 277416 sa110-364 I 18:43:09.00 -00:11:20.0 J2000.00 1.180 180.0 20:39:33.0 20.1 I INT-WFC 1 x 1 277417 sa110-364 V 18:43:09.00 -00:11:20.0 J2000.00 1.178 180.0 20:41:10.7 20.1 V Harris 1 x 1 277418 sa110-364 B 18:43:09.00 -00:11:19.9 J2000.00 1.176 180.0 20:42:39.1 50.1 B Harris 1 x 1 277419 sa110-364 I 18:43:09.00 -00:11:19.9 J2000.00 1.174 180.0 20:44:34.0 20.1 I INT-WFC 1 x 1 277420 sa110-364 V 18:43:09.00 -00:11:20.1 J2000.00 1.172 180.0 20:46:07.3 20.1 V Harris 1 x 1 277421 sa110-364 B 18:43:09.00 -00:11:19.9 J2000.00 1.170 180.0 20:47:35.5 50.1 B Harris 1 x 1 277422 sa110-364 I 18:43:09.00 -00:11:20.0 J2000.00 1.168 180.0 20:49:29.6 19.6 I INT-WFC 1 x 1 277423 ngc6440 V 17:48:52.66 -20:21:34.5 J2000.00 1.528 180.0 20:52:55.0 299.9 V Harris 1 x 1 277424 ngc6440 B 17:48:52.67 -20:21:34.3 J2000.00 1.532 180.0 20:59:14.9 299.7 B Harris 1 x 1 277425 ngc6440 I 17:48:52.67 -20:21:34.6 J2000.00 1.537 180.0 21:05:35.8 299.8 I INT-WFC 1 x 1 277426 f_75 V 18:32:40.00 +35:24:59.9 J2000.00 1.007 180.0 21:13:59.3 599.4 V Harris 1 x 1 277427 f_75 V 18:32:39.99 +35:24:59.9 J2000.00 1.007 180.0 21:25:24.9 599.5 V Harris 1 x 1 277428 f_75 V 18:32:39.99 +35:25:00.0 J2000.00 1.008 180.0 21:36:50.8 599.4 V Harris 1 x 1 277429 f_74 V 18:33:29.99 +36:34:59.9 J2000.00 1.014 180.0 21:48:52.0 599.4 V Harris 1 x 1 277430 f_73 V 18:33:00.00 +35:59:59.9 J2000.00 1.018 180.0 22:00:53.9 599.4 V Harris 1 x 1 277431 _f73 V 18:32:59.99 +35:59:59.9 J2000.00 1.026 180.0 22:12:53.8 599.5 V Harris 1 x 1 277432 f_73 V 18:33:00.00 +36:00:00.0 J2000.00 1.035 180.0 22:24:54.3 599.4 V Harris 1 x 1 277433 f_73 V 18:33:00.00 +36:00:00.0 J2000.00 1.046 180.0 22:36:22.8 599.5 V Harris 1 x 1 277434 f_72 V 18:30:00.00 +36:00:00.0 J2000.00 1.064 180.0 22:48:23.6 599.5 V Harris 1 x 1 277435 f_72 V 18:30:00.00 +35:59:59.9 J2000.00 1.082 180.0 23:00:43.9 599.5 V Harris 1 x 1 277436 f_72 V 18:30:00.00 +35:59:59.9 J2000.00 1.101 180.0 23:12:12.2 599.3 V Harris 1 x 1 277437 f_74 V 18:33:29.99 +36:34:59.9 J2000.00 1.118 180.0 23:24:14.3 599.3 V Harris 1 x 1 277438 f_74 V 18:33:30.00 +36:34:59.9 J2000.00 1.142 180.0 23:35:40.4 599.4 V Harris 1 x 1 277439 f_75 V 18:32:40.00 +35:24:59.8 J2000.00 1.171 180.0 23:47:41.4 599.6 V Harris 1 x 1 277440 f_73 V 18:32:59.99 +36:00:00.0 J2000.00 1.203 180.0 23:59:42.9 599.4 V Harris 1 x 1 277441 f_72 V 18:29:59.99 +35:59:59.9 J2000.00 1.249 180.0 00:11:58.8 599.4 V Harris 1 x 1 277442 f_75 V 18:32:40.00 +35:24:59.9 J2000.00 1.282 180.0 00:24:00.6 598.9 V Harris 1 x 1 277443 f_74 V 18:33:30.00 +36:34:59.9 J2000.00 1.324 180.0 00:36:02.1 599.4 V Harris 1 x 1 277444 f_73 V 18:33:00.00 +35:59:59.9 J2000.00 1.379 180.0 00:48:03.1 599.6 V Harris 1 x 1 277445 f_76 V 23:42:23.50 +28:09:59.9 J2000.00 1.062 180.0 01:01:46.0 599.4 V Harris 1 x 1 277446 f_77 V 23:44:55.00 +28:10:00.0 J2000.00 1.049 180.0 01:13:47.8 599.4 V Harris 1 x 1 277447 f_76 V 23:42:23.50 +28:10:00.0 J2000.00 1.033 180.0 01:25:48.8 599.5 V Harris 1 x 1 277448 f_77 V 23:44:55.00 +28:09:59.9 J2000.00 1.024 180.0 01:37:52.0 599.4 V Harris 1 x 1 277449 f_76 V 23:42:23.49 +28:10:00.0 J2000.00 1.013 180.0 01:49:54.8 599.4 V Harris 1 x 1 277450 f_77 V 23:44:55.00 +28:09:59.8 J2000.00 1.008 180.0 02:01:55.6 598.9 V Harris 1 x 1 277451 f_76 V 23:42:23.50 +28:09:59.9 J2000.00 1.002 180.0 02:13:56.7 599.5 V Harris 1 x 1 277452 f_77 V 23:44:54.99 +28:09:59.9 J2000.00 1.001 180.0 02:25:58.4 599.4 V Harris 1 x 1 277453 f_78 V 23:47:39.99 +28:09:59.9 J2000.00 1.000 180.0 02:38:26.3 599.4 V Harris 1 x 1 277454 f_79 V 23:50:20.00 +28:19:59.9 J2000.00 1.001 180.0 02:50:28.3 599.4 V Harris 1 x 1 277455 M31-microfld1 0:44:00.00 +41:34:00.0 J2000.00 1.032 180.0 03:03:38.2 319.6 r Sloan 1 x 1 277456 M31-microfld1 0:44:00.00 +41:34:00.0 J2000.00 1.030 180.0 03:10:18.2 319.7 r Sloan 1 x 1 277457 M31-microfld1 0:44:00.00 +41:34:00.0 J2000.00 1.028 180.0 03:17:00.4 319.6 i Sloan 1 x 1 277458 M31-microfld1 0:43:59.99 +41:34:00.0 J2000.00 1.026 180.0 03:23:41.7 319.9 i Sloan 1 x 1 277459 M31-microfld2 0:43:09.99 +40:58:15.0 J2000.00 1.023 180.0 03:31:24.4 319.7 r Sloan 1 x 1 277460 M31-microfld2 0:43:10.00 +40:58:14.9 J2000.00 1.023 180.0 03:38:04.7 319.8 r Sloan 1 x 1 277461 M31-microfld2 0:43:09.99 +40:58:14.9 J2000.00 1.024 180.0 03:44:43.5 319.8 i Sloan 1 x 1 277462 M31-microfld2 0:43:10.00 +40:58:15.0 J2000.00 1.025 180.0 03:51:22.5 319.8 i Sloan 1 x 1 277463 f_78 V 23:47:40.00 +28:09:59.9 J2000.00 1.053 180.0 03:59:38.1 599.4 V Harris 1 x 1 277464 f_79 V 23:50:20.00 +28:20:00.1 J2000.00 1.066 180.0 04:11:41.9 599.5 V Harris 1 x 1 277465 f_78 V 23:47:39.99 +28:10:00.0 J2000.00 1.091 180.0 04:23:46.0 599.4 V Harris 1 x 1 277466 f_79 V 23:50:19.99 +28:19:59.9 J2000.00 1.109 180.0 04:35:48.9 599.5 V Harris 1 x 1 277467 f_78 V 23:47:40.00 +28:10:00.0 J2000.00 1.141 180.0 04:47:52.0 599.5 V Harris 1 x 1 277468 f_79 V 23:50:19.99 +28:19:59.8 J2000.00 1.165 180.0 04:59:54.7 599.3 V Harris 1 1 x 1