----------------------------------------------------------------------------- Mauna Loa Solar Observatory Observer's Log ----------------------------------------------------------------------------- Tue Sep 24 16:32:16 GMT 1996 Year: 96 Doy: 268 Observer: yasukawa WEATHER COMMENT: Tue Sep 24 16:33:28 GMT 1996 In heavy cirrus overcast, light southwest breeze. COMMENT: Tue Sep 24 16:34:05 GMT 1996 Cirrus too thick to guide, standing down until it thins out. No observations for now. Tue Sep 24 16:34:46 GMT 1996 CHIP Startup--Initializing new tape COMMENT: Tue Sep 24 16:37:47 GMT 1996 Corrected nene time -2 sec and kii time +1 sec. WEATHER COMMENT: Tue Sep 24 18:05:31 GMT 1996 Thin cirrus hole may approach, opened dome, standing by. MKIII COMMENT: Tue Sep 24 18:10:26 GMT 1996 Checked seating of connectors from detectors to DCSA preamps and checked seating of DCSA preamps in connectors in barrel. There was some movement of preamp when pushing on LEMO connectors (detector->preamp). unfirm seating may be cause of radial noise seen in CHAN 1 I signal after compensator plates removed. We shall see if there is improvement. Tue Sep 24 18:45:31 GMT 1996 CHIP CHIP Start Patrol CHIP COMMENT: Tue Sep 24 18:45:27 GMT 1996 I see a faint image on LOWL so decided to start up CHIP to see if it can image thru current cirrus thickness. Set program to Manual to defeat FixCenter. MKIII COMMENT: Tue Sep 24 18:50:46 GMT 1996 DPMON COMMENT: Tue Sep 24 18:50:54 GMT 1996 I will try starting DPMON to see if anything is visible or useful thru the cirrus. Oh, wait, it got thick again. Standing down. DPMON COMMENT: Tue Sep 24 18:57:59 GMT 1996 Thinned, Starting up. Tue Sep 24 18:58:53 GMT 1996 dPMon Start Patrol Tue Sep 24 19:00:35 GMT 1996 dPMon End Patrol DPMON COMMENT: Tue Sep 24 19:00:36 GMT 1996 Halpha disc image looks useable. Need to stop and center occulter with Daystar in manually. Too washed out to tell where occulter is in normal mode. Tue Sep 24 19:02:36 GMT 1996 CHIP Bias Tue Sep 24 19:03:49 GMT 1996 dPMon Start Patrol Tue Sep 24 19:03:53 GMT 1996 CHIP End Bias Tue Sep 24 19:04:03 GMT 1996 CHIP Water DPMON COMMENT: Tue Sep 24 19:03:46 GMT 1996 Centered occulter with daystar in. Stem looks close, but difficult to tell on Display image. Used Camera image to align hour angle. Tue Sep 24 19:04:42 GMT 1996 CHIP End Water DPMON COMMENT: Tue Sep 24 19:13:04 GMT 1996 Stem alignment looks good in Display image too. Tue Sep 24 20:00:59 GMT 1996 dPMon Flat Tue Sep 24 20:01:54 GMT 1996 dPMon End Flat Tue Sep 24 20:05:34 GMT 1996 CHIP Gain Tue Sep 24 20:10:16 GMT 1996 CHIP End Gain Tue Sep 24 20:10:26 GMT 1996 CHIP Bias Tue Sep 24 20:11:10 GMT 1996 CHIP End Bias Tue Sep 24 20:11:21 GMT 1996 CHIP Water Tue Sep 24 20:11:51 GMT 1996 CHIP End Water Tue Sep 24 20:19:13 GMT 1996 dPMon End Patrol COMMENT: Tue Sep 24 20:19:31 GMT 1996 Stopping to reconfigure dome shutter. Tue Sep 24 20:21:37 GMT 1996 CHIP CHIP End Patrol Tue Sep 24 20:28:38 GMT 1996 CHIP CHIP Start Patrol Tue Sep 24 20:29:00 GMT 1996 dPMon Start Patrol CHIP COMMENT: Tue Sep 24 20:40:32 GMT 1996 Chip image drifting, probably not enough sun to guide properly. Tue Sep 24 20:49:56 GMT 1996 dPMon End Patrol COMMENT: Tue Sep 24 20:50:08 GMT 1996 Stopping DPMON and CHIP, clouds too thick. Tue Sep 24 20:52:47 GMT 1996 CHIP CHIP End Patrol Tue Sep 24 21:23:21 GMT 1996 CHIP CHIP Start Patrol Tue Sep 24 21:23:48 GMT 1996 dPMon Start Patrol COMMENT: Tue Sep 24 21:25:39 GMT 1996 Restarted CHIP and DPMON, cirrus thinnig a bit. Tue Sep 24 22:02:59 GMT 1996 dPMon Flat Tue Sep 24 22:03:54 GMT 1996 dPMon End Flat Tue Sep 24 22:04:36 GMT 1996 CHIP Bias Tue Sep 24 22:05:52 GMT 1996 CHIP End Bias Tue Sep 24 22:06:02 GMT 1996 CHIP Water Tue Sep 24 22:06:42 GMT 1996 CHIP End Water Tue Sep 24 23:02:58 GMT 1996 dPMon Flat Tue Sep 24 23:03:52 GMT 1996 dPMon End Flat Tue Sep 24 23:04:53 GMT 1996 CHIP Bias Tue Sep 24 23:05:55 GMT 1996 CHIP End Bias Tue Sep 24 23:06:04 GMT 1996 CHIP Water Tue Sep 24 23:06:42 GMT 1996 CHIP End Water MKIII COMMENT: Tue Sep 24 23:15:02 GMT 1996 Kim and I are baring the tilt plate mechanism to inspect its mechanics and functions in an effort to redesign a 15 degree tilt hard stop. Wed Sep 25 00:02:55 GMT 1996 dPMon Flat Wed Sep 25 00:03:48 GMT 1996 dPMon End Flat Wed Sep 25 00:04:36 GMT 1996 CHIP Bias Wed Sep 25 00:05:52 GMT 1996 CHIP End Bias Wed Sep 25 00:06:01 GMT 1996 CHIP Water Wed Sep 25 00:06:38 GMT 1996 CHIP End Water Wed Sep 25 00:55:18 GMT 1996 dPMon End Patrol WEATHER COMMENT: Wed Sep 25 00:55:40 GMT 1996 In thick cirrus, stopping CHIP and DPMON. Wed Sep 25 00:57:29 GMT 1996 CHIP CHIP End Patrol MKIII COMMENT: Wed Sep 25 01:25:06 GMT 1996 Removed the can housing the 1/2-wave plate, prisms and slits from MKIII to tape 3 hairs across the slits for optical channel 3 (data chan 1). Reinstalling assembly and putting MKIII back together again MKIII COMMENT: Wed Sep 25 02:08:38 GMT 1996 Reassembly went smoothely except for the cover to the 1/2-wave plate gearbox. Had to make a minor engineering change in its design to get it back properly. Wed Sep 25 02:13:32 GMT 1996 CHIP ending tape COMMENT: Wed Sep 25 02:15:25 GMT 1996 Activity report: QP: 70; 123-128; 230-235; 238-244; No coronal data Tapes: MKIII: NONE DPMON: P00718 CHIP: C00135 LOWL: L00418