INT OBSERVING LOG (ISAAC NEWTON GROUP, LA PALMA) TELESCOPE: INT DATE: 20000907 TAPE NR: INTD4491 OBSERVER: Mike Irwin & Annette Ferguson PROGRAMME: Survey of M31 Halo and outer disk PATT/CAT REF.: P8 TELESCOPE OPERATOR: N/A SUPPORT ASTRONOMER: N/A TELESCOPE FOCUS: 46.15 mm CALIBRATE RESULTS: HI 37.5 +/- 3.94, DI -58,48 +/- 1.32, HC 62.01 +/- 2.84, Sky sigma 3.50 INSTRUMENT: WFC WFC FILTER WHEEL: g,V,r,i,z,Ha WEATHER: (1st half) Goodr (2nd half) Good CLOUD COVER (%): (1st half) 0% (2nd half) 0% DUST (0-2): (1st half) 01 (2nd half) 1 SEEING (arcsec): (1st half) 0.8 (2nd half) 1.0 DOME OPENED (UT): 20:00 METEOROLOGICAL PARAMETERS UT AirT Hum% Wspd Gust Wdir Press LocT IntT Mirr LocRH IntRH 20:00 15.7 25 18.8 19.3 150 771.1 16.1 17.8 12.9 24 21 21:00 15.5 27 18.6 20.3 147 771.3 15.9 16.7 14.7 28 25 22:00 15.5 20 17.2 17.5 150 772.1 16.0 16.8 15.4 19 18 23:00 15.8 17 24.5 25.2 147 772.3 16.1 16.6 15.5 16 16 00:00 15.6 17 28.0 29.2 148 772.2 16.0 16.6 15.8 16 16 01:00 15.6 17 27.4 28.2 145 772.1 15.9 16.5 16.0 16 16 02:00 15.8 17 29.5 31.6 148 771.6 16.3 16.6 16.2 16 16 03:00 15.8 17 29.8 32.5 149 771.1 16.2 16.5 16.3 16 17 04:00 15.7 17 29.3 31.3 150 770.9 16.1 16.4 16.2 16 17 05:00 15.3 17 18.7 20.3 153 770.8 15.9 16.1 16.3 16 17 06:00 15.5 17 12.5 13.0 151 770.9 16.0 16.2 16.4 16 16 SUNSET(UT) 19:34 EVENING TWILIGHT(UT) 20:47 MORNING TWILIGHT(UT) 05:33 SUNRISE(UT) 06:46 MOON'S QUARTER (1-4) 2 DISK % OF ILLUM. 70 DARK TIME 08:46 TWILIGHT TIME 02:26 MOONRISE(UT) No moonrise within sunset-sunrise MOONSET(UT) 02:11 TIME LOST(WEATHER): 00:00 TIME LOST(TECHNICAL): 00:00 TIME LOST(OTHER): 00:00 COMMENTS: Photometric night; moon bright for first half. Excellent, though occasionally variable, seeing. Run no. Object name RA Dec. Equinox AM PA UT Exp. T. Filter Psys Channel Binning Comments 228893 File not available 228894 File not available 228895 File not available 228896 File not available 228897 Bias frame 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 16:12:38.5 0.0 z Gunn 1 x 1 228898 Bias frame 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 16:13:17.5 0.0 z Gunn 1 x 1 228899 Bias frame 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 16:13:56.5 0.0 z Gunn 1 x 1 228900 Bias frame 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 16:14:35.5 0.0 z Gunn 1 x 1 228901 Bias frame 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 16:15:14.5 0.0 z Gunn 1 x 1 228902 Flat field 15:00:00.00 +31:59:59.9 J2000.00 1.211 180.0 19:42:24.3 3.1 Halpha Narrow-ban 1 x 1 228903 Flat field 15:00:02.35 +32:00:29.9 J2000.00 1.215 180.0 19:43:34.2 5.1 Halpha Narrow-ban 1 x 1 228904 Flat field 15:00:04.71 +32:00:59.9 J2000.00 1.218 180.0 19:44:45.8 6.1 Halpha Narrow-ban 1 x 1 228905 Flat field 15:00:04.71 +32:01:00.0 J2000.00 1.239 180.0 19:51:18.5 3.1 i Sloan 1 x 1 228906 Flat field 15:00:02.35 +32:00:29.9 J2000.00 1.244 180.0 19:52:31.8 4.1 i Sloan 1 x 1 228907 Flat field 14:59:59.99 +32:00:00.0 J2000.00 1.248 180.0 19:53:41.5 6.1 i Sloan 1 x 1 228908 Flat field 14:59:59.99 +31:59:59.9 J2000.00 1.254 180.0 19:55:19.2 12.1 V Harris 1 x 1 228909 Flat field 15:00:02.35 +32:00:30.0 J2000.00 1.258 180.0 19:56:36.5 14.6 V Harris 1 x 1 228910 Flat field 15:00:04.71 +32:00:59.9 J2000.00 1.263 180.0 19:57:58.6 24.1 V Harris 1 x 1 228911 Flat field 15:00:04.71 +32:00:59.9 J2000.00 1.268 180.0 19:59:21.8 20.1 r Sloan 1 x 1 228912 Flat field 15:00:02.35 +32:00:30.0 J2000.00 1.274 180.0 20:00:48.0 30.1 r Sloan 1 x 1 228913 Flat field 15:00:00.00 +32:00:00.0 J2000.00 1.280 180.0 20:02:18.8 45.1 r Sloan 1 x 1 228914 Focus run 18:42:45.00 +00:10:04.0 J2000.00 1.147 180.0 20:18:41.9 10.1 r Sloan 1 x 1 228915 sa110-361 V 18:42:44.99 +00:08:03.9 J2000.00 1.144 180.0 20:24:01.3 10.1 V Harris 1 x 1 228916 sa110-361 g 18:42:45.00 +00:08:04.0 J2000.00 1.143 180.0 20:25:09.3 10.1 g Sloan 1 x 1 228917 sa110-361 i 18:42:45.00 +00:08:04.0 J2000.00 1.143 180.0 20:26:17.0 10.1 i Sloan 1 x 1 228918 sa110-361 r 18:42:45.00 +00:08:03.9 J2000.00 1.142 180.0 20:27:24.4 10.1 r Sloan 1 x 1 228919 sa110-361 Z 18:42:45.00 +00:08:03.9 J2000.00 1.142 180.0 20:28:33.8 10.1 z Gunn 1 x 1 228920 Focus run 16:30:28.80 +39:57:30.0 J2000.00 1.184 180.0 21:02:33.6 10.1 z Gunn 1 x 1 228921 wfsj1637+4116_001 16:30:28.80 +39:56:00.1 J2000.00 1.210 180.0 21:06:42.0 599.4 z Gunn 1 x 1 228922 wfsj1637+4116_001 16:30:28.80 +39:56:00.0 J2000.00 1.242 180.0 21:17:49.3 599.5 i Sloan 1 x 1 228923 wfsj1637+4116_002 16:30:26.79 +40:15:59.7 J2000.00 1.281 180.0 21:29:53.4 599.4 i Sloan 1 x 1 228924 wfsj1637+4116_002 16:30:26.80 +40:16:00.0 J2000.00 1.322 180.0 21:41:13.2 599.5 z Gunn 1 x 1 228925 wfsj1637+4116_003 16:30:24.89 +40:35:59.8 J2000.00 1.371 180.0 21:53:16.6 599.4 i Sloan 1 x 1 228926 wfsj1637+4116_003 16:30:24.90 +40:35:59.9 J2000.00 1.422 180.0 22:04:34.6 599.0 z Gunn 1 x 1 228927 sa113-163 V 21:42:35.00 +00:16:45.9 J2000.00 1.225 180.0 22:17:20.5 10.1 V Harris 1 x 1 228928 sa113-163 g 21:42:35.00 +00:16:45.9 J2000.00 1.223 180.0 22:18:28.6 10.1 g Sloan 1 x 1 228929 sa113-163 i 21:42:34.99 +00:16:46.0 J2000.00 1.220 180.0 22:19:36.8 10.1 i Sloan 1 x 1 228930 sa113-163 r 21:42:35.00 +00:16:45.9 J2000.00 1.218 180.0 22:20:44.4 10.1 r Sloan 1 x 1 228931 sa113-163 Z 21:42:35.00 +00:16:45.9 J2000.00 1.216 180.0 22:21:51.9 10.1 z Gunn 1 x 1 228932 wfsjm31_20 0:40:59.36 +40:08:57.4 J2000.00 1.612 180.0 22:26:34.7 799.3 i Sloan 1 x 1 228933 wfsjm31_24 0:43:46.96 +40:19:59.3 J2000.00 1.530 180.0 22:42:15.5 799.3 i Sloan 1 x 1 228934 wfsjm31_36 0:48:26.34 +41:36:28.1 J2000.00 1.467 180.0 22:57:58.4 799.3 i Sloan 1 x 1 228935 wfsjm31_42 0:51:18.84 +41:46:48.1 J2000.00 1.404 180.0 23:13:53.9 799.1 i Sloan 1 x 1 228936 M31-microfld1 0:44:00.00 +41:33:59.9 J2000.00 1.321 180.0 23:30:49.3 319.7 r Sloan 1 x 1 228937 M31-microfld1 0:43:59.99 +41:34:00.0 J2000.00 1.297 180.0 23:37:30.9 319.7 r Sloan 1 x 1 228938 M31-microfld1 0:44:00.00 +41:34:00.0 J2000.00 1.273 180.0 23:44:31.2 319.8 i Sloan 1 x 1 228939 M31-microfld1 0:44:00.00 +41:33:59.9 J2000.00 1.252 180.0 23:51:08.7 319.8 i Sloan 1 x 1 228940 M31-microfld2 0:43:10.00 +40:58:15.0 J2000.00 1.226 180.0 23:58:53.9 319.7 i Sloan 1 x 1 228941 M31-microfld2 0:43:09.99 +40:58:15.0 J2000.00 1.207 180.0 00:05:34.3 319.8 i Sloan 1 x 1 228942 M31-microfld2 0:43:10.00 +40:58:15.0 J2000.00 1.191 180.0 00:11:58.0 319.7 r Sloan 1 x 1 228943 M31-microfld2 0:43:09.99 +40:58:15.0 J2000.00 1.175 180.0 00:18:29.8 319.8 r Sloan 1 x 1 228944 wfsjm31_12 0:37:23.19 +39:24:34.6 J2000.00 1.130 180.0 00:27:59.6 798.8 i Sloan 1 x 1 228945 wfsjm31_17 0:40:08.33 +39:35:55.3 J2000.00 1.107 180.0 00:43:41.6 798.8 i Sloan 1 x 1 228946 wfsjm31_46 0:52:17.28 +42:19:30.2 J2000.00 1.109 180.0 00:59:51.3 799.2 i Sloan 1 x 1 228947 wfsjm31_50 0:53:16.70 +42:52:09.6 J2000.00 1.090 180.0 01:15:18.0 799.2 i Sloan 1 x 1 228948 wfsjm31_50 0:53:16.70 +42:52:09.6 J2000.00 1.058 180.0 01:44:56.3 799.2 V Harris 1 x 1 228949 wfsjm31_46 0:52:17.28 +42:19:30.4 J2000.00 1.043 180.0 02:01:10.1 799.1 V Harris 1 x 1 228950 wfsjm31_17 0:40:08.33 +39:35:55.1 J2000.00 1.020 180.0 02:17:44.4 799.3 V Harris 1 x 1 228951 wfsjm31_12 0:37:23.20 +39:24:34.6 J2000.00 1.018 180.0 02:32:48.6 799.0 V Harris 1 x 1 228952 wfsjm31_42 0:51:18.84 +41:46:48.1 J2000.00 1.026 180.0 02:48:08.4 799.2 V Harris 1 x 1 228953 wfsjm31_36 0:48:26.35 +41:36:28.0 J2000.00 1.028 180.0 03:03:15.3 799.1 V Harris 1 x 1 228954 wfsjm31_24 0:43:46.96 +40:19:59.1 J2000.00 1.032 180.0 03:19:24.6 799.3 V Harris 1 x 1 228955 wfsjm31_20 0:40:59.36 +40:08:57.5 J2000.00 1.044 180.0 03:35:09.6 799.3 V Harris 1 x 1 228956 wfsjm31_44 0:55:06.03 +41:01:31.1 J2000.00 1.048 180.0 03:50:42.1 799.4 V Harris 1 x 1 228957 wfsjm31_44 0:55:06.03 +41:01:31.2 J2000.00 1.062 180.0 04:05:18.7 799.2 i Sloan 1 x 1 228958 wfsjm31_48 i 0:56:05.64 +41:34:05.4 J2000.00 1.081 180.0 04:20:53.6 799.0 i Sloan 1 x 1 228959 wfsjm31_48 V 0:56:05.63 +41:34:05.9 J2000.00 1.102 180.0 04:35:33.8 799.1 V Harris 1 x 1 228960 wfsjm31_52 i 0:57:06.23 +42:06:37.6 J2000.00 1.129 180.0 04:51:56.9 799.1 i Sloan 1 x 1 228961 wfsjm31_52 V 0:57:06.23 +42:06:37.8 J2000.00 1.158 180.0 05:06:35.4 799.2 V Harris 1 x 1 228962 wfsjm31_08 0:36:34.50 +38:51:28.7 J2000.00 1.247 180.0 05:22:44.8 799.3 V Harris 1 x 1 228964 sa95-330 V 3:54:31.00 +00:29:04.9 J2000.00 1.137 180.0 05:42:26.5 10.1 V Harris 1 x 1 228965 sa95-330 g 3:54:31.00 +00:29:05.0 J2000.00 1.137 180.0 05:43:36.4 10.1 g Sloan 1 x 1 228966 sa95-330 i 3:54:31.00 +00:29:04.9 J2000.00 1.136 180.0 05:44:46.1 10.1 i Sloan 1 x 1 228967 sa95-330 r 3:54:31.00 +00:29:04.9 J2000.00 1.136 180.0 05:45:55.8 10.1 r Sloan 1 x 1 228968 sa95-330 Z 3:54:31.00 +00:29:05.0 J2000.00 1.136 180.0 05:47:07.2 10.1 z Gunn 1 x 1