----------------------------------------------------------------------------- Mauna Loa Solar Observatory Observer's Log ----------------------------------------------------------------------------- Thu Apr 24 16:51:46 GMT 1997 Year: 97 Doy: 114 Observer: yasukawa WEATHER COMMENT: Thu Apr 24 16:51:49 GMT 1997 Cool, in thick cirrus overcast, no shadows at this time, light south breeze. Although yesterday was an emergency blue-dot (staff absence day), solar plots indicate and visuals from lower altitudes indicate that there was a lot of cirrus overcast. Thu Apr 24 16:56:05 GMT 1997 CHIP Startup--Initializing new tape COMMENT: Thu Apr 24 16:56:11 GMT 1997 We received the Vigra board on Tuesday. I installed it this morning, replacing the existing one in the MCC. Monitor color table is back to normal. Thu Apr 24 17:17:37 GMT 1997 CHIP CHIP Start Patrol Thu Apr 24 17:17:46 GMT 1997 dPMon Start Patrol WEATHER COMMENT: Thu Apr 24 17:17:04 GMT 1997 Clear hole approaching, starting obs. COMMENT: Thu Apr 24 17:25:26 GMT 1997 Mouse connector to Vigra board is rather flaky. When seated all the way in, mouse becomes unresponsive. I reseated it lightly and tightened down the hold-down screws just enough to prevent it from falling off. Mouse now working. WEATHER COMMENT: Thu Apr 24 17:57:42 GMT 1997 Hole may be pau. Back in banded cirrus. Thu Apr 24 18:02:58 GMT 1997 dPMon Flat Thu Apr 24 18:03:03 GMT 1997 CHIP Bias Thu Apr 24 18:03:56 GMT 1997 dPMon End Flat Thu Apr 24 18:03:52 GMT 1997 CHIP End Bias Thu Apr 24 18:04:00 GMT 1997 CHIP Water Thu Apr 24 18:04:35 GMT 1997 CHIP End Water MKIII COMMENT: Thu Apr 24 18:17:53 GMT 1997 Removed DOY 97112 coronal data from HISTORY. Polarization was too high and will flaw the database. None of the other files on the PEEK work area were without cirrus-caused polarization so I did not replace the image. I added an "N" to the dot calendar indicating that History coronal data was not acquired. Hopefully there will be good data files on tape. Thu Apr 24 18:22:48 GMT 1997 dPMon End Patrol WEATHER COMMENT: Thu Apr 24 18:22:05 GMT 1997 In fairly extensive banded cirrus. Stopped MKIII and DPMON. Will keep CHIP running for a while as data does not look real bad. Running Video on DPMON to monitor clouds. Thu Apr 24 19:02:10 GMT 1997 CHIP Bias Thu Apr 24 19:03:10 GMT 1997 CHIP End Bias Thu Apr 24 19:03:25 GMT 1997 CHIP Water Thu Apr 24 19:04:07 GMT 1997 CHIP End Water Thu Apr 24 19:19:36 GMT 1997 dPMon Start Patrol WEATHER COMMENT: Thu Apr 24 19:19:31 GMT 1997 Hole, starting MKIII and DPMON. Thu Apr 24 19:23:45 GMT 1997 dPMon End Patrol WEATHER COMMENT: Thu Apr 24 19:23:49 GMT 1997 Rats! There is cirrus in the hole. Thu Apr 24 19:36:49 GMT 1997 dPMon Start Patrol WEATHER COMMENT: Thu Apr 24 19:36:48 GMT 1997 Clear. Thu Apr 24 20:00:57 GMT 1997 dPMon Flat Thu Apr 24 20:01:49 GMT 1997 dPMon End Flat Thu Apr 24 20:02:00 GMT 1997 CHIP Gain Thu Apr 24 20:06:12 GMT 1997 CHIP End Gain Thu Apr 24 20:06:21 GMT 1997 CHIP Bias Thu Apr 24 20:07:01 GMT 1997 CHIP End Bias Thu Apr 24 20:07:12 GMT 1997 CHIP Water Thu Apr 24 20:07:44 GMT 1997 CHIP End Water Thu Apr 24 20:14:19 GMT 1997 dPMon End Patrol COMMENT: Thu Apr 24 20:14:33 GMT 1997 Stopping to reconfigure dome shutter. Thu Apr 24 20:16:49 GMT 1997 CHIP CHIP End Patrol Thu Apr 24 20:20:13 GMT 1997 dPMon Start Patrol Thu Apr 24 20:20:26 GMT 1997 CHIP CHIP Start Patrol WEATHER COMMENT: Thu Apr 24 20:26:30 GMT 1997 In thin cirrus. COMMENT: Thu Apr 24 20:34:38 GMT 1997 Going down to GONG to do preventive maintenance. Thu Apr 24 20:39:07 GMT 1997 dPMon End Patrol COMMENT: Thu Apr 24 20:39:39 GMT 1997 WOW, What timing. I stepped outside to leave the building and the contractors were just jockeying around to begin dumping dirt into the trenches with the grounding cabling. Wind is coming upslope so it would've been a disaster if I was down at GONG when they started. Stopping observations and closing the dome. Thu Apr 24 20:42:01 GMT 1997 CHIP CHIP End Patrol COMMENT: Thu Apr 24 20:42:12 GMT 1997 NOW going down to GONG. COMMENT: Thu Apr 24 21:03:55 GMT 1997 Back from GONG. WEATHER COMMENT: Thu Apr 24 21:04:06 GMT 1997 In heavy cirrus bands again. Thinking of shutting down. Contractors are whipping up lots of dust and diesel exhaust downwind. Thu Apr 24 21:15:51 GMT 1997 CHIP ending tape LOW-L COMMENT: Thu Apr 24 21:16:03 GMT 1997 Darryl will be on vacation tomorrow and Saturday so I will change tapes now so that we don't lose any data should the drives behave funny after the changeover. Popping out L00451 from drive 0, moving L00452 from drive 1 to 0, loading L00453 in drive 1. Cleaning the drives. COMMENT: Thu Apr 24 21:18:49 GMT 1997 Stopping for the day. Cleaning MKIII, CHIP, and DPMON drives. COMMENT: Thu Apr 24 21:19:18 GMT 1997 Activity report: qp: 45; 107; 132-140; 161; 219; 230-235; 247-256; 272; 288; No coronal activity Tapes: MKIII: H01542 DPMON: P00870 CHIP: C00288 LOWL: L00451 SCAN-LOG SCAN-LOG 17:02:57. 4/24/97 DOY 114 17:27:39 17:30:56 17:34:13 17:37:31 17:40:47 17:44:05 17:47:21 17:50:38 17:53:53 17:57:10 18:00:25 18:03:42 18:06:57 18:10:15 18:13:29 18:16:47 18:20:01 19:20:02 19:23:15 19:39:04 19:42:18 19:45:32 19:48:45 19:52:00 19:55:14 19:58:30 20:01:45 20:05:04 20:08:17 20:11:32 20:21:03 20:24:23 20:27:39 20:30:54 20:34:08 20:37:24 0 ERRORS OK