Mauna Loa Solar Observatory Observer's Log ----------------------------------------------------------------------------- Thu Apr 21 17:19:09 GMT 1994 Year: 94 Doy: 111 Observer: koon COMMENT: Thu Apr 21 17:19:16 GMT 1994 Clear sky, wind ~20 mph from the southeast, temp.=52 F. Thu Apr 21 17:23:14 GMT 1994: Patrol Start Thu Apr 21 18:00:15 GMT 1994: Filemark-Calibration Thu Apr 21 18:49:47 GMT 1994: Filemark COMMENT: Thu Apr 21 19:03:12 GMT 1994 Accidentally crashed the program by doing an rlogin akala from the xterm window. Restarted everything and inserted a new tape P00046. Thu Apr 21 19:04:36 GMT 1994: Patrol Start Thu Apr 21 20:02:17 GMT 1994: Filemark-Calibration COMMENT: Thu Apr 21 20:24:09 GMT 1994 Extended dome slot. Thu Apr 21 21:02:18 GMT 1994: Filemark-Calibration DPMON COMMENT: Thu Apr 21 21:03:54 GMT 1994 Installed heat filter glass #940, ring is much more evident. DPMON COMMENT: Thu Apr 21 21:09:18 GMT 1994 Installed square clear glass filter (marked KG2 on envelope), ring still evident. DPMON COMMENT: Thu Apr 21 21:14:08 GMT 1994 Installed small yellow filter (KG2A) with .8" lyot stop, slight ring close to limb is visible, need larger exposure. Thu Apr 21 21:17:19 GMT 1994: Patrol End Thu Apr 21 21:20:11 GMT 1994: Patrol Start DPMON COMMENT: Thu Apr 21 21:20:12 GMT 1994 Tried manually setting the exposure to 100 and that improved the brightness of the prominences, however the corona is getting washed out and we lose detail at the limb. Also there is a ring right at the limb. Taking some data now with the higher exposure. It looks as though the best filter is the blue one (#4063), I will replace that one and set the exposure back to 50. DPMON COMMENT: Thu Apr 21 21:27:58 GMT 1994 Blue filter is now back in place and exposure is set to 50. COMMENT: Thu Apr 21 21:32:35 GMT 1994 Wind is bouncing spar around. COMMENT: Thu Apr 21 21:59:43 GMT 1994 Spar lost tracking, closing down. mark-Calibration Thu Apr 21 22:01:02 GMT 1994: Patrol End MKIII COMMENT: Thu Apr 21 22:16:37 GMT 1994 Did a dark scan as last scan on tape. COMMENT: Thu Apr 21 22:38:09 GMT 1994 Activity report: QL: 43; 63; 112; 230; 280. No coronal activity. TAPES: MKIII: H00744 DPMON: P00045 and P00046 LOW-L: L00028 in drive #1 Thu Apr 21 22:40:56 GMT 1994: Filemark SCAN-LOG SCAN-LOG 17:25:20. 4/21/94 DOY 111 17:31:26 17:34:38 17:37:50 17:41:01 17:44:15 17:47:26 17:50:39 17:53:51 17:57:04 18:00:15 18:03:27 18:06:37 18:09:49 18:12:59 18:16:11 18:19:21 18:22:33 18:25:43 18:28:54 18:32:04 1838 0 CL 18:52:47 1857 15CL 19:21:17 19:24:24 19:27:39 19:30:48 19:34:01 19:37:10 19:40:18 19:43:25 19:46:36 19:49:42 19:52:50 19:55:57 19:59:05 20:02:11 20:05:19 20:08:25 20:11:33 20:14:39 20:17:47 20:20:54 20:24:01 20:27:08 20:30:16 20:33:23 20:36:31 20:39:40 20:42:54 20:46:01 20:49:09 20:52:15 20:55:23 20:58:30 21:01:38 21:04:45 21:07:53 21:11:01 21:14:15 21:17:22 21:20:30 21:23:38 21:26:46 21:29:53 21:33:02 21:36:10 21:39:19 21:42:26 21:45:35 21:48:43 21:51:51 21:54:58 21:58:06 22:05:23 0 ERRORS OK