INT OBSERVING LOG (ISAAC NEWTON GROUP, LA PALMA) TELESCOPE: INT DATE: 20000531 TAPE NR: INTD4398 OBSERVER: Paul Groot/ Paul Vreeswijk/ Nial Tanvir PROGRAMME: WFS10: The Faint Sky Variability Survey PATT/CAT REF.: WFS10 TELESCOPE OPERATOR: Paul Groot SUPPORT ASTRONOMER: Robert Greimel TELESCOPE FOCUS: 45.9 mm CALIBRATE RESULTS: not specified INSTRUMENT: WFC WFC FILTER WHEEL: UBVRIHa WEATHER: (1st half) Good (2nd half) Good CLOUD COVER (%): (1st half) 10 (2nd half) 10 DUST (0-2): (1st half) 0 (2nd half) 0 SEEING (arcsec): (1st half) 1.0 (2nd half) 1.2 DOME OPENED (UT): 19:00 METEOROLOGICAL PARAMETERS UT AirT Hum% Wspd Gust Wdir Press LocT IntT Mirr LocRH IntRH 21:00 16.7 3 31.0 34.7 133 771.9 17.2 17.8 17.2 2 3 22:00 16.5 3 27.3 31.0 173 772.4 16.8 17.7 17.1 2 3 23:00 16.2 3 24.7 26.6 176 772.7 16.7 17.5 17.3 1 3 00:00 16.9 2 21.4 26.3 206 773.1 17.4 17.7 17.3 1 3 01:00 17.0 2 23.4 27.6 203 772.9 17.5 17.2 17.4 1 5 02:00 16.7 2 18.6 21.0 236 772.5 17.1 17.8 17.3 1 2 03:00 15.9 3 18.6 22.5 203 771.9 16.4 16.9 17.4 2 4 04:00 16.2 3 26.0 32.6 156 771.3 16.6 17.0 17.2 2 4 05:00 15.7 4 24.5 27.2 215 771.3 16.2 16.7 17.2 2 5 06:00 15.2 4 18.6 22.7 158 771.1 15.6 16.4 17.1 2 4 SUNSET(UT) 20:12 EVENING TWILIGHT(UT) 21:37 MORNING TWILIGHT(UT) 04:41 SUNRISE(UT) 06:06 MOON'S QUARTER (1-4) 4 DISK % OF ILLUM. 1 DARK TIME 07:04 TWILIGHT TIME 02:50 MOONRISE(UT) 05:20 MOONSET(UT) No moonset within sunset-sunrise TIME LOST(WEATHER): 00:00 TIME LOST(TECHNICAL): 00:00 TIME LOST(OTHER): 00:00 COMMENTS: Cirrus clouds, filter wheel stuck at end of night Run no. Object name RA Dec. Equinox AM PA UT Exp. T. Filter Psys Channel Binning Comments 218568 Bias 0:00:00.00 +00:00:00.0 J2000.00 4.277 180.1 14:52:20.0 0.0 U RGO 218569 Bias 0:00:00.00 +00:00:00.0 J2000.00 4.277 180.1 14:55:16.8 0.0 U RGO 218570 Bias 0:00:00.00 +00:00:00.0 J2000.00 4.277 180.1 15:27:48.5 0.0 U RGO 218573 Bias 0:00:00.00 +00:00:00.0 J2000.00 4.277 180.1 16:02:42.9 0.0 I INT-WFC 218574 Bias 0:00:00.00 +00:00:00.0 J2000.00 4.277 180.1 16:34:47.6 0.0 I INT-WFC 218575 Skyflat R 2s 13:04:33.00 +29:50:48.9 B1950.00 1.051 180.1 20:17:27.1 2.1 R Harris 218576 Skyflat R 2s 13:04:32.99 +29:50:48.9 B1950.00 1.045 180.1 20:22:10.7 2.1 R Harris 218577 Skyflat R 2s 13:04:33.00 +29:50:48.9 B1950.00 1.041 180.1 20:25:56.8 2.1 R Harris 218578 Skyflat R 2s 13:04:34.53 +29:50:49.0 B1950.00 1.039 180.1 20:27:36.5 1.6 R Harris 218579 Skyflat R 4s 13:04:36.07 +29:50:49.0 B1950.00 1.038 180.1 20:29:04.7 4.1 R Harris 218580 Skyflat R 5s 13:04:37.61 +29:50:49.0 B1950.00 1.036 180.1 20:30:39.6 5.1 R Harris 218581 Skyflat R 7s 13:04:39.15 +29:50:48.9 B1950.00 1.034 180.1 20:32:14.0 7.1 R Harris 218582 Skyflat R 12s 13:04:39.14 +29:51:09.0 B1950.00 1.033 180.1 20:33:46.9 12.1 R Harris 218583 Skyflat R 20s 13:04:39.14 +29:51:28.9 B1950.00 1.031 180.1 20:35:18.8 20.1 R Harris 218584 Skyflat R 30s 13:04:39.15 +29:51:49.0 B1950.00 1.029 180.1 20:37:15.0 30.1 R Harris 218585 Skyflat R 60s 13:04:39.14 +29:52:09.0 B1950.00 1.027 180.1 20:39:03.8 60.1 R Harris 218586 Skyflat R 100s 13:04:39.15 +29:52:28.9 B1950.00 1.025 180.1 20:41:29.0 100.0 R Harris 218587 Focus run 11:50:41.74 +01:48:22.7 J2000.00 1.129 180.1 20:52:13.5 10.1 V Harris 218588 Guide break 60s 16:21:44.39 +27:07:58.1 J2000.00 1.575 180.1 21:02:28.2 60.0 V Harris 218589 f_25 V 12:51:34.19 +26:24:09.9 J2000.00 1.001 180.1 21:13:38.1 599.6 V Harris 218590 f_25 V 12:51:34.20 +26:24:10.0 J2000.00 1.001 180.1 21:25:36.1 599.4 V Harris 218591 f_26 V 12:49:24.20 +26:07:09.9 J2000.00 1.004 180.1 21:37:31.7 599.5 V Harris 218592 f_26 V 12:49:24.20 +26:07:10.0 J2000.00 1.009 180.1 21:49:30.7 599.4 V Harris 218593 f_25 V 12:51:34.20 +26:24:10.1 J2000.00 1.014 180.1 22:01:24.6 599.6 V Harris 218594 f_25 V 12:51:34.20 +26:24:10.0 J2000.00 1.023 180.1 22:13:21.4 599.4 V Harris 218595 f_26 V 12:49:24.20 +26:07:10.1 J2000.00 1.037 180.1 22:25:16.7 599.3 V Harris 218596 f_26 V 12:49:24.20 +26:07:09.9 J2000.00 1.051 180.1 22:37:12.2 599.5 V Harris 218597 f_25 V 12:51:34.20 +26:24:09.9 J2000.00 1.064 180.1 22:49:06.5 599.5 V Harris 218598 f_26 V 12:49:24.19 +26:07:10.0 J2000.00 1.088 180.1 23:01:02.4 599.4 V Harris 218599 f_54 V 16:21:44.39 +27:07:57.7 J2000.00 1.071 180.1 23:14:34.9 599.4 V Harris 218600 f_55 V 16:26:09.40 +27:07:58.3 J2000.00 1.059 180.1 23:26:29.9 599.4 V Harris 218601 f_56 V 16:28:24.39 +27:07:57.8 J2000.00 1.047 180.1 23:38:24.4 599.5 V Harris 218602 f_58 V 16:33:52.40 +21:21:06.9 J2000.00 1.049 180.1 23:50:19.7 598.9 V Harris 218603 f_25 V 12:51:34.20 +26:24:10.3 J2000.00 1.238 180.1 00:02:29.1 599.4 V Harris 218604 f_54 V 16:21:44.39 +27:07:57.9 J2000.00 1.009 180.1 00:14:36.8 599.5 V Harris 218605 f_54 V 16:21:44.39 +27:07:58.1 J2000.00 1.004 180.1 00:26:32.1 599.5 V Harris 218606 f_54 V 16:21:44.40 +27:07:58.0 J2000.00 1.001 180.1 00:38:25.6 599.4 V Harris 218607 f_54 V 16:21:44.40 +27:07:58.1 J2000.00 1.000 180.1 00:50:19.4 599.5 V Harris 218608 f_54 V 16:21:44.40 +27:07:58.0 J2000.00 1.002 180.1 01:02:14.1 599.6 V Harris 218609 f_55 V 16:26:09.39 +27:07:58.0 J2000.00 1.004 180.1 01:14:50.9 599.5 V Harris 218610 f_55 V 16:26:09.40 +27:07:58.0 J2000.00 1.009 180.1 01:26:45.3 599.5 V Harris 218611 f_55 V 16:26:09.39 +27:07:58.1 J2000.00 1.016 180.1 01:38:41.2 599.6 V Harris 218612 f_55 V 16:26:09.40 +27:07:58.0 J2000.00 1.025 180.1 01:50:35.6 598.9 V Harris 218613 f_55 V 16:26:09.39 +27:07:58.1 J2000.00 1.037 180.1 02:02:31.4 599.3 V Harris 218614 f_56 V 16:28:24.40 +27:07:58.0 J2000.00 1.049 180.1 02:14:27.3 599.5 V Harris 218615 f_56 V 16:28:24.40 +27:07:57.9 J2000.00 1.065 180.1 02:26:22.3 599.6 V Harris 218616 f_56 V 16:28:24.40 +27:07:58.0 J2000.00 1.084 180.1 02:38:17.6 599.6 V Harris 218617 f_56 V 16:28:24.40 +27:07:57.8 J2000.00 1.106 180.1 02:50:12.4 599.4 V Harris 218618 f_56 V 16:28:24.40 +27:07:57.9 J2000.00 1.132 180.1 03:02:08.1 599.4 V Harris 218619 f_54 V 16:21:44.40 +27:07:58.0 J2000.00 1.184 180.1 03:15:38.5 599.5 V Harris 218620 f_55 V 16:26:09.39 +27:07:57.9 J2000.00 1.206 180.1 03:27:33.2 599.4 V Harris 218621 f_58 V 16:33:52.40 +21:21:06.8 J2000.00 1.244 180.1 03:39:27.7 599.5 V Harris 218622 f_58 V 16:33:52.40 +21:21:06.8 J2000.00 1.289 180.1 03:51:24.0 599.4 V Harris 218623 f_58 V 16:33:52.40 +21:21:06.8 J2000.00 1.341 180.1 04:03:22.3 599.5 V Harris 218624 f_58 V 16:33:52.40 +21:21:06.7 J2000.00 1.399 180.1 04:15:17.4 599.4 V Harris 218625 f_58 V 16:33:52.40 +21:21:06.9 J2000.00 1.466 180.1 04:27:12.0 599.4 V Harris Trailed, 218626 f_34 V 17:21:09.40 +27:44:09.9 J2000.00 1.261 180.1 04:39:09.2 599.5 V Harris 218627 f_33 V 17:21:09.39 +27:12:09.9 J2000.00 1.309 180.1 04:51:03.6 599.4 V Harris 218628 f_53 V 16:23:58.50 +27:07:57.8 J2000.00 1.744 180.1 05:03:00.3 599.4 V Harris 218630 KL Dra 60s V 19:24:38.20 +59:41:46.0 J2000.00 1.208 180.1 05:20:39.2 60.0 V Harris 218631 Skyflat 60s V 19:24:38.19 +59:41:46.0 J2000.00 1.212 180.1 05:25:09.7 60.0 V Harris 218632 Skyflat 60s V 19:24:40.84 +59:41:46.0 J2000.00 1.216 180.1 05:28:24.7 60.1 V Harris 218633 Skyflat 60s V 19:24:43.48 +59:41:46.0 J2000.00 1.220 180.1 05:32:07.5 60.1 V Harris 218634 Skyflat 60s V 19:24:46.12 +59:41:45.9 J2000.00 1.223 180.1 05:34:41.7 60.0 V Harris