NOT OBSERVING LOG DATE : 15-16/4/96 OBSERVERS : H. KRISTEN, A. BROEILS FILE NO OBJECT FILTER EXP.T UTC ZENITD. R.A. DEC. REMARKS 1 BIAS 19:27 Temp. Air 6.2C 2 BIAS 19:32 Temp. Structure (=Temp.)10.0C 3 BIAS 19:36 4 BIAS 19:37 WIND : 9m/s 120 deg 5 BIAS 19:39 6 FLATFIELD U 5 s 19:43 26 09.12 07.26 FLOODED, Temp. Structure : 8 C 7 FLATFIELD U 5 s 19:45 25 40000 COUNTS 8 FLATFIELD U 5 s 19:47 25 35000 COUNTS 9 FLATFIELD U 5 s 19:48 25 25000 COUNTS 10 FLATFIELD U 7 s 19:50 25 25000 COUNTS 11 FLATFIELD B 5 s 19:52 24 FLOODED 12 FLATFIELD B 5 s 19:53 24 43000 COUNTS 13 FLATFIELD B 5 s 19:55 24 30000 COUNTS 14 FLATFIELD B 7 s 19:56 24 28000 COUNTS 15 FLATFIELD B 10 s 19:58 24 27000 COUNTS 16 FLATFIELD V 10 s 20:00 23 9000 COUNTS 17 FLATFIELD V 20 s 20:02 23 12000 COUNTS 18 FLATFIELD V 30 s 20:04 23 11000 COUNTS 19 FLATFIELD V 50 s 20:05 23 10000 COUNTS 20 FLATFIELD V 100 s 20:08 23 11000 COUNTS 21 PG 1047 B 30 s 20:24 40 Temp. Structure : 6.6 C 22 PG 1047 V 30 s Seeing : 1".4 23 NGC 2903 V 900 s 20:34 10 09:31 21.30 Temp. Structure : 6.3 C 24 NGC 2903 B 600 s 20:52 7,8 Temp. Structure : 6.1 C 25 PG 1047 B 30 s 21:06 34 10:50 -00.00 26 PG 1047 V 30 s 21:09 33 27 FOCUS V 15 s 21:11 33 28 NGC 3359 B 900 s 21:23 35 10:46 63.14 Temp. Structure : 5.8 C 29 NGC 3359 B 600 s 21:38 35 30 NGC 3359 V 600 s 21:51 35 31 NGC 3359 V 600 s 22:03 34 Seeing : 1".2 32 PG 1047 B 30 s 22:15 28 33 PG 1047 V 30 s 22:17 28 34 NGC 4123 B 180 s 22:21 32 12:07 02.54 "SKY FLAT" 35 NGC 4123 B 600 s 22:26 31 Temp. Structure : 5.9 C 36 NGC 4123 B 600 s 22:39 29 37 NGC 4123 V 600 s 22:50 28 Seeing : 1".2 38 NGC 4123 V 600 s 23:01 27 Seeing : 1".15 39 NGC 4151 B 600 s 23:13 12 Seeing : 0".75 40 NGC 4151 B 600 s 23:30 11 Temp. Structure : 6.0 C 41 NGC 4151 B 60 s 23:42 10 42 NGC 4151 B 10 s 23:44 10 43 NGC 4151 V 600 s 23:46 10 44 NGC 4151 V 600 s 23:58 11 Seeing : 0".8 Read Remark! 45 NGC 4151 V 60 s 24:19 12 Temp. Structure : 6.3 C 46 NGC 4151 V 10 s 24:20 13 Temp. Structure : 6.5 C WHEATHER: CLEAR, SOME DUST REMARK : ROTATOR TRACKING LOST DURING EXPOSURE 44, REDID EXPOSURE 47 PG 1323 B 15 s 00:24 38 13:25 -08.44 (30" OFFSET E) 48 PG 1323 V 15 s 00:26 38 49 NGC 4314 B 450 s 00:33 8 12:22 29.54 Seeing : 1" 50 NGC 4314 B 450 s 00:42 9 Temp. Structure : 6.0 C 51 NGC 4314 V 450 s 00:52 12 Seeing : 1" 52 NGC 4314 V 450 s 01:02 14 53 NGC 4340 B 450 s 01:10 20 54 NGC 4340 B 450 s 01:19 22 Seeing : 1" 55 NGC 4340 V 450 s 01:29 24 56 NGC 4340 V 450 s 01:37 26 Seeing : 1" 57 PG 1323 B 15 s 01:47 39 13:25 -08.44 (30" OFFSET E) 58 PG 1323 V 15 s 01:48 39 Temp. Structure : 6.1 C 59 NGC 4596 B 600 s 01:52 29 12:39 10.11 Seeing : 1".1 60 NGC 4596 B 600 s 02:03 31 61 NGC 4596 V 600 s 02:15 33 Seeing : 1".2 62 NGC 4596 V 600 s 02:27 36 Temp. Structure : 6.5 C 63 NGC 5383 B 600 s 02:39 19 13:56 41.51 TEMPERATURES SUDDENLY DIVERGE, Seeing : 1" 64 NGC 5383 B 600 s 02:50 20 Temp. Structure : 6.8 C 65 NGC 5383 V 600 s 03:02 22 Seeing : 0".9 66 NGC 5383 V 600 s 03:15 24 Temp. Structure : 7.2 C 67 SA 107 B 15 s 03:26 29 15:39 -00.16 68 SA 107 V 15 s 03:27 29 FAST DROP IN TEMPERATURE 69 NGC 5728 B 600 s 03:43 50 14:42 -17.14 70 NGC 5728 B 600 s 03:54 51 FOCUS TOO LOW PREVIOUSLY (WENT WRONG WAY) 71 NGC 5728 V 600 s 04:06 53 Read REMARK! Y. Temp.:5.5C, G. Temp.:6.5C REMARK : LOST SOME TIME TO REFOCUS PROPERLY , UNSURE ABOUT WHICH STRUCTURAL TEMP. TO FOLLOW 72 NGC 5728 V 600 s 04:30 56 Seeing : 1".1 73 NGC 5850 B 600 s 04:43 39 15:06 01:33 Y. Temp.:5.4C, G. Temp.:6.4C 74 NGC 5850 B 600 s 04:53 41 Seeing : 1".1 75 NGC 5850 V 600 s 05:05 43 Y. Temp.:5.5C, G. Temp.:6.4C 76 NGC 5850 V 600 s 05:17 46 Y. Temp.:5.8C, G. Temp.:6.6C 77 SA 107 B 30 s 05:28 43 15:39 -00.16 STANDARD STAR 626 + 627 78 SA 107 V 30 s 05:31 43 Seeing : 0".98 79 NGC 5885 V 600 s 05:34 55 15:14 -10:04 Y. Temp.:5.9C, G. Temp.:6.9C 80 NGC 5885 V 600 s 05:46 55 BEGINNING TO SEE BACKGROUND 81 FLATFIELD I 240 s 05:58 20 19.21 12.27 4000 COUNTS 82 FLATFIELD I 180 s 06:04 20 8000 COUNTS 83 FLATFIELD I 120 s 06:08 19 12000 COUNTS 84 FLATFIELD I 90 s 06:11 18 18000 COUNTS 85 FLATFIELD I 60 s 06:14 18 23000 COUNTS 86 FLATFIELD I 30 s 06:17 18 20000 COUNTS 87 FLATFIELD I 20 s 06:19 18 22000 COUNTS 88 FLATFIELD I 10 s 06:20 18 19000 COUNTS 89 FLATFIELD R 10 s 06:23 17 22000 COUNTS 90 FLATFIELD R 7 s 06:24 17 25000 COUNTS 91 FLATFIELD R 5 s 06:26 17 28000 COUNTS 92 FLATFIELD R 5 s 06:27 17 41000 COUNTS 93 DARK 900 s 15:25 all 400 COUNTS REMARK : 93 and 94 might be effected by external light!