INT OBSERVING LOG (ISAAC NEWTON GROUP, LA PALMA) TELESCOPE: INT DATE: 19991206 TAPE NR: INTD4243 OBSERVER: Jasper Wall, Chris Blake PROGRAMME: INT WFC Survey PATT/CAT REF.: WFS10 TELESCOPE OPERATOR: J Rey SUPPORT ASTRONOMER: R Corradi TELESCOPE FOCUS: 46.0 mm CALIBRATE RESULTS: not specified INSTRUMENT: WFC WFC FILTER WHEEL: i,KPB,Z,R,V,r WEATHER: (1st half) BAD (2nd half) BAD CLOUD COVER (%): (1st half) (2nd half) DUST (0-2): (1st half) 0 (2nd half) 0 SEEING (arcsec): (1st half) (2nd half) TEMPERATURE, HUMIDITY and WIND: UT Temp Hum% Wspd Wdir 19:00 2.0 100 25 142 20:00 2.3 100 39 160 21:00 2.4 100 38 118 22:00 2.4 100 34 178 23:00 2.2 100 29 140 00:00 1.9 100 26 169 01:00 2.1 100 24 148 02:00 2.0 100 16 156 03:00 1.7 100 36 139 04:00 1.8 100 25 145 SUNSET(UT) 18:22 EVENING TWILIGHT(UT) 19:38 MORNING TWILIGHT(UT) 06:27 SUNRISE(UT) 07:43 MOON'S QUARTER (1-4) 4 DISK % OF ILLUM. 2 DARK TIME 10:49 TWILIGHT TIME 02:32 MOONRISE(UT) 07:08 MOONSET(UT) No moonset within sunset-sunrise TIME LOST(WEATHER): 10:49 TIME LOST(TECHNICAL): 00:00 TIME LOST(OTHER): 00:00 COMMENTS: all night lost due to high humidity Run no. Object name RA Dec. Equinox AM PA UT Exp. T. Filter Psys Channel Binning Comments 203204 Bias frame 0:00:00.00 +00:00:00.0 A 4.519 180.0 15:00:42.7 0.0 r Sloan 203205 Dark frame 0:00:00.00 +00:00:00.0 A 4.519 180.0 15:04:07.0 600.0 r Sloan 203206 Dark_300 0:00:00.00 +00:00:00.0 A 4.539 180.0 16:30:28.1 300.0 R Harris 203207 Dark_3600 0:00:00.00 +00:00:00.0 A 4.539 180.0 16:43:47.5 3600.0 R Harris 203208 Bias_1 0:00:00.00 +00:00:00.0 A 1.000 180.0 19:25:34.3 0.0 R Harris 203209 Bias_2 0:00:00.00 +00:00:00.0 A 1.000 180.0 19:30:08.0 0.0 R Harris 203210 Bias_3 0:00:00.00 +00:00:00.0 A 1.000 180.0 19:59:03.8 0.0 R Harris 203211 Bias_4 0:00:00.00 +00:00:00.0 A 1.000 180.0 20:00:08.5 0.0 R Harris 203212 Bias_5 0:00:00.00 +00:00:00.0 A 1.000 180.0 20:01:16.4 0.0 R Harris 203213 Dark frame 0:00:00.00 +00:00:00.0 A 1.000 180.0 20:04:33.0 7200.0 R Harris 203215 Flat field 23:54:08.90 +59:28:17.9 B1950.00 1.386 180.0 23:11:54.4 33.2 i Sloan 203216 Flat field 23:54:08.89 +59:28:17.9 B1950.00 1.404 180.0 23:17:57.0 99.5 r Sloan 203217 Flat field 23:54:08.89 +59:28:17.9 B1950.00 1.420 180.0 23:23:44.4 59.8 V Harris 203218 Flat field 23:54:08.90 +59:28:18.0 B1950.00 1.432 180.0 23:28:03.3 10.6 R Harris 203219 Flat field 23:54:08.90 +59:28:18.0 B1950.00 1.441 180.0 23:31:13.6 6.6 z Gunn 203220 Flat field 23:54:08.90 +59:28:18.0 B1950.00 1.459 180.0 23:36:19.7 57.8 B Kitt Peak