ACP console log opened 25-Nov-2016 12:49:04 UTC This is ACP version 6.0 (build 14, Special for Wodaski Alt/Az Scope) Licensed to Arne Henden 12:49:04 This is AutoFlat version 6.1.5 12:49:04 Using flat plan SchedulerDawnFlats.txt 12:49:04 Waiting to start dawn flats at 6:02:43 AM 12:49:04 (tracking off) 12:58:43 (tracking on) 12:58:43 Start slew to flat area... 12:58:44 (wait for slew to complete) 12:59:08 (slew complete) 13:02:43 Starting dawn flats. High Sun at 6:43:28 AM 13:02:43 Starting flat field acquisition. 13:02:43 Reducing slew settle time to 0 sec. 13:02:43 **Filter C does not exist. Skipping this flat set. 13:02:43 Doing 5 flats in I at binning 1 13:02:43 Start slew to flat area... 13:02:44 Switching from V to I filter for imaging 13:02:44 Focus change of -25 steps required 13:02:54 TEST I: 10 sec at bin 1 13:02:54 Testing with 64 x 64 sub-frame 13:02:55 Camera exposing 13:03:07 Exposure complete 13:03:09 Image downloaded 13:03:09 Background mean = 398 (ADU) 13:03:09 Still too dark - waiting 15 sec. to try again... 13:03:24 ...wait complete. Sun is now at -8.9 deg. elevation 13:03:24 TEST I: 10 sec at bin 1 13:03:25 Testing with 64 x 64 sub-frame 13:03:25 Camera exposing 13:03:37 Exposure complete 13:03:38 Image downloaded 13:03:39 Background mean = 410 (ADU) 13:03:39 Still too dark - waiting 15 sec. to try again... 13:03:54 ...wait complete. Sun is now at -8.8 deg. elevation 13:03:54 TEST I: 10 sec at bin 1 13:03:54 Testing with 64 x 64 sub-frame 13:03:54 Camera exposing 13:04:06 Exposure complete 13:04:07 Image downloaded 13:04:08 Background mean = 422 (ADU) 13:04:08 Still too dark - waiting 15 sec. to try again... 13:04:23 ...wait complete. Sun is now at -8.7 deg. elevation 13:04:23 TEST I: 10 sec at bin 1 13:04:23 Testing with 64 x 64 sub-frame 13:04:23 Camera exposing 13:04:35 Exposure complete 13:04:36 Image downloaded 13:04:37 Background mean = 435 (ADU) 13:04:37 Still too dark - waiting 15 sec. to try again... 13:04:52 ...wait complete. Sun is now at -8.6 deg. elevation 13:04:52 TEST I: 10 sec at bin 1 13:04:52 Testing with 64 x 64 sub-frame 13:04:52 Camera exposing 13:05:05 Exposure complete 13:05:06 Image downloaded 13:05:07 Background mean = 451 (ADU) 13:05:07 Still too dark - waiting 15 sec. to try again... 13:05:22 ...wait complete. Sun is now at -8.5 deg. elevation 13:05:22 TEST I: 10 sec at bin 1 13:05:22 Testing with 64 x 64 sub-frame 13:05:22 Camera exposing 13:05:34 Exposure complete 13:05:35 Image downloaded 13:05:36 Background mean = 468 (ADU) 13:05:36 Still too dark - waiting 15 sec. to try again... 13:05:51 ...wait complete. Sun is now at -8.4 deg. elevation 13:05:51 TEST I: 10 sec at bin 1 13:05:51 Testing with 64 x 64 sub-frame 13:05:51 Camera exposing 13:06:04 Exposure complete 13:06:05 Image downloaded 13:06:05 Background mean = 486 (ADU) 13:06:05 Still too dark - waiting 15 sec. to try again... 13:06:20 ...wait complete. Sun is now at -8.3 deg. elevation 13:06:20 TEST I: 10 sec at bin 1 13:06:20 Testing with 64 x 64 sub-frame 13:06:20 Camera exposing 13:06:33 Exposure complete 13:06:34 Image downloaded 13:06:35 Background mean = 505 (ADU) 13:06:35 Still too dark - waiting 15 sec. to try again... 13:06:50 ...wait complete. Sun is now at -8.2 deg. elevation 13:06:50 TEST I: 10 sec at bin 1 13:06:50 Testing with 64 x 64 sub-frame 13:06:50 Camera exposing 13:07:02 Exposure complete 13:07:03 Image downloaded 13:07:04 Background mean = 527 (ADU) 13:07:04 Still too dark - waiting 15 sec. to try again... 13:07:19 ...wait complete. Sun is now at -8.1 deg. elevation 13:07:19 TEST I: 10 sec at bin 1 13:07:19 Testing with 64 x 64 sub-frame 13:07:19 Camera exposing 13:07:32 Exposure complete 13:07:33 Image downloaded 13:07:33 Background mean = 551 (ADU) 13:07:33 Still too dark - waiting 15 sec. to try again... 13:07:49 ...wait complete. Sun is now at -8.0 deg. elevation 13:07:49 TEST I: 10 sec at bin 1 13:07:49 Testing with 64 x 64 sub-frame 13:07:49 Camera exposing 13:08:02 Exposure complete 13:08:03 Image downloaded 13:08:04 Background mean = 582 (ADU) 13:08:04 Still too dark - waiting 15 sec. to try again... 13:08:19 ...wait complete. Sun is now at -7.9 deg. elevation 13:08:19 TEST I: 10 sec at bin 1 13:08:19 Testing with 64 x 64 sub-frame 13:08:19 Camera exposing 13:08:32 Exposure complete 13:08:33 Image downloaded 13:08:33 Background mean = 616 (ADU) 13:08:33 Still too dark - waiting 15 sec. to try again... 13:08:48 ...wait complete. Sun is now at -7.8 deg. elevation 13:08:48 TEST I: 10 sec at bin 1 13:08:48 Testing with 64 x 64 sub-frame 13:08:48 Camera exposing 13:09:01 Exposure complete 13:09:02 Image downloaded 13:09:03 Background mean = 650 (ADU) 13:09:03 Still too dark - waiting 15 sec. to try again... 13:09:18 ...wait complete. Sun is now at -7.7 deg. elevation 13:09:18 TEST I: 10 sec at bin 1 13:09:18 Testing with 64 x 64 sub-frame 13:09:18 Camera exposing 13:09:30 Exposure complete 13:09:31 Image downloaded 13:09:32 Background mean = 692 (ADU) 13:09:32 Still too dark - waiting 15 sec. to try again... 13:09:47 ...wait complete. Sun is now at -7.6 deg. elevation 13:09:47 TEST I: 10 sec at bin 1 13:09:47 Testing with 64 x 64 sub-frame 13:09:47 Camera exposing 13:10:00 Exposure complete 13:10:01 Image downloaded 13:10:01 Background mean = 738 (ADU) 13:10:01 Still too dark - waiting 15 sec. to try again... 13:10:17 ...wait complete. Sun is now at -7.5 deg. elevation 13:10:17 TEST I: 10 sec at bin 1 13:10:17 Testing with 64 x 64 sub-frame 13:10:17 Camera exposing 13:10:30 Exposure complete 13:10:31 Image downloaded 13:10:32 Background mean = 790 (ADU) 13:10:32 Still too dark - waiting 15 sec. to try again... 13:10:47 ...wait complete. Sun is now at -7.4 deg. elevation 13:10:47 TEST I: 10 sec at bin 1 13:10:47 Testing with 64 x 64 sub-frame 13:10:47 Camera exposing 13:10:59 Exposure complete 13:11:00 Image downloaded 13:11:01 Background mean = 848 (ADU) 13:11:01 Still too dark - waiting 15 sec. to try again... 13:11:16 ...wait complete. Sun is now at -7.3 deg. elevation 13:11:16 TEST I: 10 sec at bin 1 13:11:16 Testing with 64 x 64 sub-frame 13:11:16 Camera exposing 13:11:29 Exposure complete 13:11:30 Image downloaded 13:11:30 Background mean = 914 (ADU) 13:11:30 Still too dark - waiting 15 sec. to try again... 13:11:45 ...wait complete. Sun is now at -7.3 deg. elevation 13:11:45 TEST I: 10 sec at bin 1 13:11:45 Testing with 64 x 64 sub-frame 13:11:45 Camera exposing 13:11:58 Exposure complete 13:11:59 Image downloaded 13:11:59 Background mean = 983 (ADU) 13:11:59 Still too dark - waiting 15 sec. to try again... 13:12:14 ...wait complete. Sun is now at -7.2 deg. elevation 13:12:14 TEST I: 10 sec at bin 1 13:12:15 Testing with 64 x 64 sub-frame 13:12:15 Camera exposing 13:12:27 Exposure complete 13:12:29 Image downloaded 13:12:30 Background mean = 1058 (ADU) 13:12:30 Still too dark - waiting 15 sec. to try again... 13:12:45 ...wait complete. Sun is now at -7.1 deg. elevation 13:12:45 TEST I: 10 sec at bin 1 13:12:45 Testing with 64 x 64 sub-frame 13:12:45 Camera exposing 13:12:58 Exposure complete 13:12:59 Image downloaded 13:13:00 Background mean = 1146 (ADU) 13:13:00 Still too dark - waiting 15 sec. to try again... 13:13:15 ...wait complete. Sun is now at -7.0 deg. elevation 13:13:15 TEST I: 10 sec at bin 1 13:13:15 Testing with 64 x 64 sub-frame 13:13:16 Camera exposing 13:13:28 Exposure complete 13:13:29 Image downloaded 13:13:30 Background mean = 1247 (ADU) 13:13:30 Still too dark - waiting 15 sec. to try again... 13:13:45 ...wait complete. Sun is now at -6.9 deg. elevation 13:13:45 TEST I: 10 sec at bin 1 13:13:45 Testing with 64 x 64 sub-frame 13:13:45 Camera exposing 13:13:57 Exposure complete 13:13:59 Image downloaded 13:13:59 Background mean = 1360 (ADU) 13:13:59 Still too dark - waiting 15 sec. to try again... 13:14:14 ...wait complete. Sun is now at -6.8 deg. elevation 13:14:14 TEST I: 10 sec at bin 1 13:14:14 Testing with 64 x 64 sub-frame 13:14:14 Camera exposing 13:14:27 Exposure complete 13:14:28 Image downloaded 13:14:29 Background mean = 1492 (ADU) 13:14:29 Still too dark - waiting 15 sec. to try again... 13:14:44 ...wait complete. Sun is now at -6.7 deg. elevation 13:14:44 TEST I: 10 sec at bin 1 13:14:44 Testing with 64 x 64 sub-frame 13:14:44 Camera exposing 13:14:56 Exposure complete 13:14:57 Image downloaded 13:14:58 Background mean = 1644 (ADU) 13:14:58 Still too dark - waiting 15 sec. to try again... 13:15:13 ...wait complete. Sun is now at -6.6 deg. elevation 13:15:13 TEST I: 10 sec at bin 1 13:15:13 Testing with 64 x 64 sub-frame 13:15:13 Camera exposing 13:15:26 Exposure complete 13:15:27 Image downloaded 13:15:27 Background mean = 1818 (ADU) 13:15:27 Still too dark - waiting 15 sec. to try again... 13:15:42 ...wait complete. Sun is now at -6.5 deg. elevation 13:15:42 TEST I: 10 sec at bin 1 13:15:43 Testing with 64 x 64 sub-frame 13:15:43 Camera exposing 13:15:55 Exposure complete 13:15:56 Image downloaded 13:15:57 Background mean = 2020 (ADU) 13:15:57 Still too dark - waiting 15 sec. to try again... 13:16:12 ...wait complete. Sun is now at -6.4 deg. elevation 13:16:12 TEST I: 10 sec at bin 1 13:16:12 Testing with 64 x 64 sub-frame 13:16:12 Camera exposing 13:16:24 Exposure complete 13:16:25 Image downloaded 13:16:26 Background mean = 2259 (ADU) 13:16:26 Still too dark - waiting 15 sec. to try again... 13:16:41 ...wait complete. Sun is now at -6.3 deg. elevation 13:16:41 TEST I: 10 sec at bin 1 13:16:41 Testing with 64 x 64 sub-frame 13:16:41 Camera exposing 13:16:54 Exposure complete 13:16:55 Image downloaded 13:16:55 Background mean = 2541 (ADU) 13:16:55 Still too dark - waiting 15 sec. to try again... 13:17:10 ...wait complete. Sun is now at -6.2 deg. elevation 13:17:10 TEST I: 10 sec at bin 1 13:17:10 Testing with 64 x 64 sub-frame 13:17:10 Camera exposing 13:17:23 Exposure complete 13:17:24 Image downloaded 13:17:25 Background mean = 2873 (ADU) 13:17:25 Still too dark - waiting 15 sec. to try again... 13:17:40 ...wait complete. Sun is now at -6.1 deg. elevation 13:17:40 TEST I: 10 sec at bin 1 13:17:40 Testing with 64 x 64 sub-frame 13:17:40 Camera exposing 13:17:52 Exposure complete 13:17:53 Image downloaded 13:17:54 Background mean = 3256 (ADU) 13:17:54 Still too dark - waiting 15 sec. to try again... 13:18:09 ...wait complete. Sun is now at -6.0 deg. elevation 13:18:09 TEST I: 10 sec at bin 1 13:18:09 Testing with 64 x 64 sub-frame 13:18:09 Camera exposing 13:18:22 Exposure complete 13:18:23 Image downloaded 13:18:23 Background mean = 3680 (ADU) 13:18:23 Still too dark - waiting 15 sec. to try again... 13:18:39 ...wait complete. Sun is now at -5.9 deg. elevation 13:18:39 TEST I: 10 sec at bin 1 13:18:39 Testing with 64 x 64 sub-frame 13:18:39 Camera exposing 13:18:51 Exposure complete 13:18:52 Image downloaded 13:18:53 Background mean = 4167 (ADU) 13:18:53 Still too dark - waiting 15 sec. to try again... 13:19:08 ...wait complete. Sun is now at -5.8 deg. elevation 13:19:08 TEST I: 10 sec at bin 1 13:19:08 Testing with 64 x 64 sub-frame 13:19:08 Camera exposing 13:19:21 Exposure complete 13:19:22 Image downloaded 13:19:22 Background mean = 4705 (ADU) 13:19:22 Still too dark - waiting 15 sec. to try again... 13:19:37 ...wait complete. Sun is now at -5.7 deg. elevation 13:19:37 TEST I: 10 sec at bin 1 13:19:38 Testing with 64 x 64 sub-frame 13:19:38 Camera exposing 13:19:51 Exposure complete 13:19:52 Image downloaded 13:19:53 Background mean = 5334 (ADU) 13:19:53 Still too dark - waiting 15 sec. to try again... 13:20:09 ...wait complete. Sun is now at -5.6 deg. elevation 13:20:09 TEST I: 10 sec at bin 1 13:20:09 Testing with 64 x 64 sub-frame 13:20:09 Camera exposing 13:20:21 Exposure complete 13:20:22 Image downloaded 13:20:23 Background mean = 6102 (ADU) 13:20:23 Still too dark - waiting 15 sec. to try again... 13:20:38 ...wait complete. Sun is now at -5.5 deg. elevation 13:20:38 TEST I: 10 sec at bin 1 13:20:38 Testing with 64 x 64 sub-frame 13:20:38 Camera exposing 13:20:51 Exposure complete 13:20:52 Image downloaded 13:20:52 Background mean = 6912 (ADU) 13:20:52 Still too dark - waiting 15 sec. to try again... 13:21:07 ...wait complete. Sun is now at -5.4 deg. elevation 13:21:07 TEST I: 10 sec at bin 1 13:21:08 Testing with 64 x 64 sub-frame 13:21:08 Camera exposing 13:21:20 Exposure complete 13:21:21 Image downloaded 13:21:22 Background mean = 7828 (ADU) 13:21:22 Still too dark - waiting 15 sec. to try again... 13:21:37 ...wait complete. Sun is now at -5.3 deg. elevation 13:21:37 TEST I: 10 sec at bin 1 13:21:37 Testing with 64 x 64 sub-frame 13:21:38 Camera exposing 13:21:50 Exposure complete 13:21:51 Image downloaded 13:21:53 Background mean = 8833 (ADU) 13:21:53 Still too dark - waiting 15 sec. to try again... 13:22:08 ...wait complete. Sun is now at -5.2 deg. elevation 13:22:08 TEST I: 10 sec at bin 1 13:22:08 Testing with 64 x 64 sub-frame 13:22:08 Camera exposing 13:22:21 Exposure complete 13:22:22 Image downloaded 13:22:22 Background mean = 9961 (ADU) 13:22:22 Still too dark - waiting 15 sec. to try again... 13:22:38 ...wait complete. Sun is now at -5.1 deg. elevation 13:22:38 TEST I: 10 sec at bin 1 13:22:38 Testing with 64 x 64 sub-frame 13:22:38 Camera exposing 13:22:50 Exposure complete 13:22:51 Image downloaded 13:22:51 Background mean = 11250 (ADU) 13:22:51 Still too dark - waiting 15 sec. to try again... 13:23:07 ...wait complete. Sun is now at -5.0 deg. elevation 13:23:07 TEST I: 10 sec at bin 1 13:23:07 Testing with 64 x 64 sub-frame 13:23:07 Camera exposing 13:23:19 Exposure complete 13:23:21 Image downloaded 13:23:21 Background mean = 12779 (ADU) 13:23:21 Still too dark - waiting 15 sec. to try again... 13:23:37 ...wait complete. Sun is now at -4.9 deg. elevation 13:23:37 TEST I: 10 sec at bin 1 13:23:37 Testing with 64 x 64 sub-frame 13:23:37 Camera exposing 13:23:49 Exposure complete 13:23:50 Image downloaded 13:23:51 Background mean = 14647 (ADU) 13:23:51 Still too dark - waiting 15 sec. to try again... 13:24:06 ...wait complete. Sun is now at -4.8 deg. elevation 13:24:06 TEST I: 10 sec at bin 1 13:24:06 Testing with 64 x 64 sub-frame 13:24:06 Camera exposing 13:24:18 Exposure complete 13:24:19 Image downloaded 13:24:20 Background mean = 16825 (ADU) 13:24:20 FLAT I: 10 sec at bin 1 13:24:20 Camera exposing 13:24:33 Exposure complete 13:24:33 Start slew to flat area... 13:24:53 Image downloaded 13:24:56 Background mean = 17917 (ADU) 13:24:56 FLAT I: 10 sec at bin 1 13:24:56 Camera exposing 13:25:09 Exposure complete 13:25:09 Start slew to flat area... 13:25:30 Image downloaded 13:25:32 Background mean = 21335 (ADU) 13:25:33 FLAT I: 8.91 sec at bin 1 13:25:33 Camera exposing 13:25:45 Exposure complete 13:25:46 Start slew to flat area... 13:26:06 Image downloaded 13:26:08 Background mean = 22338 (ADU) 13:26:09 FLAT I: 7.58 sec at bin 1 13:26:09 Camera exposing 13:26:19 Exposure complete 13:26:19 Start slew to flat area... 13:26:40 Image downloaded 13:26:43 Background mean = 22371 (ADU) 13:26:43 FLAT I: 6.44 sec at bin 1 13:26:43 Camera exposing 13:26:52 Exposure complete 13:26:52 Start slew to flat area... 13:27:12 Image downloaded 13:27:16 Background mean = 22200 (ADU) 13:27:16 Doing 5 flats in R at binning 1 13:27:16 Start slew to flat area... 13:27:17 Switching from I to R filter for imaging 13:27:17 Focus change of 21 steps required 13:27:28 TEST R: 5.51 sec at bin 1 13:27:28 Testing with 64 x 64 sub-frame 13:27:28 Camera exposing 13:27:36 Exposure complete 13:27:37 Image downloaded 13:27:37 Background mean = 40578 (ADU) 13:27:37 TEST R: 2.58 sec at bin 1 13:27:38 Testing with 64 x 64 sub-frame 13:27:38 Camera exposing 13:27:42 Exposure complete 13:27:43 Image downloaded 13:27:44 Background mean = 20000 (ADU) 13:27:44 FLAT R: 2.45 sec at bin 1 13:27:44 Camera exposing 13:27:49 Exposure complete 13:27:49 Start slew to flat area... 13:28:09 Image downloaded 13:28:12 Background mean = 19395 (ADU) 13:28:12 FLAT R: 2.4 sec at bin 1 13:28:12 Camera exposing 13:28:17 Exposure complete 13:28:17 Start slew to flat area... 13:28:37 Image downloaded 13:28:41 Background mean = 21294 (ADU) 13:28:41 FLAT R: 2.14 sec at bin 1 13:28:41 Camera exposing 13:28:46 Exposure complete 13:28:46 Start slew to flat area... 13:29:06 Image downloaded 13:29:09 Background mean = 21424 (ADU) 13:29:10 FLAT R: 1.9 sec at bin 1 13:29:10 Camera exposing 13:29:14 Exposure complete 13:29:14 Start slew to flat area... 13:29:34 Image downloaded 13:29:37 Background mean = 21316 (ADU) 13:29:37 FLAT R: 1.69 sec at bin 1 13:29:37 Camera exposing 13:29:41 Exposure complete 13:29:41 Start slew to flat area... 13:30:02 Image downloaded 13:30:04 Background mean = 21052 (ADU) 13:30:04 Doing 5 flats in V at binning 1 13:30:05 Start slew to flat area... 13:30:07 Switching from R to V filter for imaging 13:30:07 Focus change of 4 steps required 13:30:17 TEST V: 1.53 sec at bin 1 13:30:18 Testing with 64 x 64 sub-frame 13:30:18 Camera exposing 13:30:22 Exposure complete 13:30:23 Image downloaded 13:30:24 Background mean = 17673 (ADU) 13:30:24 FLAT V: 1.64 sec at bin 1 13:30:24 Camera exposing 13:30:29 Exposure complete 13:30:29 Start slew to flat area... 13:30:49 Image downloaded 13:30:51 Background mean = 19316 (ADU) 13:30:51 FLAT V: 1.61 sec at bin 1 13:30:51 Camera exposing 13:30:56 Exposure complete 13:30:56 Start slew to flat area... 13:31:15 Image downloaded 13:31:18 Background mean = 20811 (ADU) 13:31:18 FLAT V: 1.47 sec at bin 1 13:31:18 Camera exposing 13:31:24 Exposure complete 13:31:24 Start slew to flat area... 13:31:44 Image downloaded 13:31:46 Background mean = 20922 (ADU) 13:31:47 FLAT V: 1.33 sec at bin 1 13:31:47 Camera exposing 13:31:51 Exposure complete 13:31:51 Start slew to flat area... 13:32:11 Image downloaded 13:32:14 Background mean = 21011 (ADU) 13:32:14 FLAT V: 1.2 sec at bin 1 13:32:14 Camera exposing 13:32:18 Exposure complete 13:32:18 Start slew to flat area... 13:32:38 Image downloaded 13:32:42 Background mean = 20819 (ADU) 13:32:42 Doing 5 flats in B at binning 1 13:32:42 Start slew to flat area... 13:32:43 Switching from V to B filter for imaging 13:32:43 Focus change of 9 steps required 13:32:54 TEST B: 1.1 sec at bin 1 13:32:54 Testing with 64 x 64 sub-frame 13:32:54 Camera exposing 13:32:58 Exposure complete 13:32:59 Image downloaded 13:33:00 Background mean = 17037 (ADU) 13:33:00 FLAT B: 1.23 sec at bin 1 13:33:00 Camera exposing 13:33:03 Exposure complete 13:33:03 Start slew to flat area... 13:33:24 Image downloaded 13:33:26 Background mean = 19082 (ADU) 13:33:27 FLAT B: 1.22 sec at bin 1 13:33:27 Camera exposing 13:33:30 Exposure complete 13:33:30 Start slew to flat area... 13:33:50 Image downloaded 13:33:53 Background mean = 20546 (ADU) 13:33:53 FLAT B: 1.13 sec at bin 1 13:33:53 Camera exposing 13:33:56 Exposure complete 13:33:56 Start slew to flat area... 13:34:16 Image downloaded 13:34:19 Background mean = 20733 (ADU) 13:34:19 FLAT B: 1.04 sec at bin 1 13:34:19 Camera exposing 13:34:22 Exposure complete 13:34:22 Start slew to flat area... 13:34:42 Image downloaded 13:34:45 Background mean = 20666 (ADU) 13:34:45 FLAT B: 1 sec at bin 1 13:34:45 Camera exposing 13:34:48 Exposure complete 13:34:48 Start slew to flat area... 13:35:09 Image downloaded 13:35:11 Background mean = 21521 (ADU) 13:35:12 **Filter U does not exist. Skipping this flat set. 13:35:12 Restore slew settle time to 1 sec. 13:35:12 Sun is now at -2.6 deg. elevation 13:35:12 (tracking off) 13:35:12 Flat acquisition complete. ACP console log closed 25-Nov-2016 13:35:12 UTC