Content-Length: 7019 | pFad | https://download.hao.ucar.edu/d5/mlso/log/observer/1998/mlso.1998d349.olog

----------------------------------------------------------------------------- Mauna Loa Solar Observatory Observer's Log ----------------------------------------------------------------------------- Tue Dec 15 18:09:29 GMT 1998 Year: 98 Doy: 349 Observer: yasukawa WEATHER COMMENT: Tue Dec 15 18:09:43 GMT 1998 Warm, clear, no wind. MKIV COMMENT: Tue Dec 15 18:10:00 GMT 1998 System just started up, Kitty and I were troubleshooting /local/e disk drive. Started CHIP at around 1723 UT--automatic logging has not been writing to logs as nahenahe was involved in troubleshoot. PICS did not initialize properly and I was trying to type in Cancel commands with one hand between troublleshoot tasks. I will start PICS up soon. We determined that the drive is not working. I removed it from the system, re cabled to tape drive, and we edited out local/e from /etc/vfstab file so the system won't look for it for now. I will ship faulty drive back to Boulder and CSMT will locate a replacement, format and partition it and ship it out to us. Tue Dec 15 18:15:47 GMT 1998 MKIII Start Patrol Tue Dec 15 18:16:04 GMT 1998 PICS Start Patrol CHIP COMMENT: Tue Dec 15 18:16:37 GMT 1998 CHIP started up at 1723 UT. LOW-L COMMENT: Tue Dec 15 18:20:39 GMT 1998 LOWL time and date OK. It was OK each time I checked it yesterday and this morning. **PSPT PROBLEM**: Tue Dec 15 18:21:25 GMT 1998 PSPT stalled initializing focus. Stopped program and went thru focus stall recovery routine from PC (it is outlined in our log notebook). Restarting PSPT. **MKIV PROBLEM**: Tue Dec 15 18:26:32 GMT 1998 MKIII OK, MKIV writing streaks to KCC display. Streaks are not at random azimuths like first scan of the day. There must be a timing problem between the modulator and the transformation board. Tue Dec 15 18:35:14 GMT 1998 MKIII Start Cal **MKIV PROBLEM**: Tue Dec 15 18:37:19 GMT 1998 I can see the streaks writing somewhat linearly, but backing up over a previous streak as it scans around. **MKIV PROBLEM**: Tue Dec 15 18:44:25 GMT 1998 Listened to 1/2-wave plate motor and drivetrain, no unusual sounds or indications that there is binding or a bad bearing. P+S signal at monitor looks stable. Tue Dec 15 18:55:25 GMT 1998 MKIII Start Patrol **MKIV PROBLEM**: Tue Dec 15 18:59:59 GMT 1998 Stopping to try resetting KCC. Tue Dec 15 19:00:14 GMT 1998 PICS Flat Tue Dec 15 19:00:53 GMT 1998 CHIP Bias Tue Dec 15 19:01:58 GMT 1998 MKIII End Patrol Tue Dec 15 19:01:49 GMT 1998 CHIP End Bias Tue Dec 15 19:01:49 GMT 1998 CHIP End Bias Tue Dec 15 19:02:11 GMT 1998 CHIP Water Tue Dec 15 19:02:52 GMT 1998 CHIP End Water Tue Dec 15 19:04:17 GMT 1998 MKIII Start Patrol **MKIV PROBLEM**: Tue Dec 15 19:06:36 GMT 1998 Streaking gone but no coronal image being written to display--image like a dark scan. **MKIV PROBLEM**: Tue Dec 15 19:09:07 GMT 1998 OK, the KCC reset must have done the trick. Second scan looks good. No streaks, coronal image. I will repeat calibration in case that got screwed up. Tue Dec 15 19:11:50 GMT 1998 MKIII Start Cal Tue Dec 15 19:31:10 GMT 1998 PICS End Patrol Tue Dec 15 19:32:00 GMT 1998 MKIII Start Patrol **PICS PROBLEM**: Tue Dec 15 19:45:49 GMT 1998 Checking out shutter on PICS. Running Video mode on disc and changing exposures. **PICS PROBLEM**: Tue Dec 15 19:47:33 GMT 1998 Camera image is blinking between a "nominal" exposure and a underexposed one, it doesn't go dark completely between displays. I can see what looks like partial nominal/underexp images occasionally, like a leaf shutter is caught partially in the image. Tue Dec 15 19:51:28 GMT 1998 PICS Start Patrol Tue Dec 15 20:00:49 GMT 1998 CHIP Gain Tue Dec 15 20:02:22 GMT 1998 PICS Flat **** EVENT COMMENT ****: Tue Dec 15 20:02:36 GMT 1998 There has been an active prominence that has been changing slowly throughout the morning at PA 225-245. Tue Dec 15 20:03:49 GMT 1998 PICS End Flat Tue Dec 15 20:05:35 GMT 1998 CHIP End Gain Tue Dec 15 20:05:46 GMT 1998 CHIP Bias Tue Dec 15 20:06:35 GMT 1998 CHIP End Bias Tue Dec 15 20:06:45 GMT 1998 CHIP Water Tue Dec 15 20:07:21 GMT 1998 CHIP End Water PICS COMMENT: Tue Dec 15 20:07:42 GMT 1998 I may be speaking too soon, but that exercise I did with the shutter in Video mode seems to have stopped the disk image vignetting and the vertically split limb images on the Display window. I haven't seen a recurrence since doing the tests. **** EVENT COMMENT ****: Tue Dec 15 20:34:19 GMT 1998 AP at PA 225-245 has receded back to the limb, not sure whether it erupted or not. Tue Dec 15 21:00:14 GMT 1998 PICS Flat Tue Dec 15 21:01:41 GMT 1998 PICS End Flat Tue Dec 15 21:01:51 GMT 1998 CHIP Bias Tue Dec 15 21:02:44 GMT 1998 CHIP End Bias Tue Dec 15 21:03:04 GMT 1998 CHIP Water Tue Dec 15 21:03:49 GMT 1998 CHIP End Water LOW-L COMMENT: Tue Dec 15 21:48:36 GMT 1998 Date and time was correct each time I checked today. PICS COMMENT: Tue Dec 15 21:53:29 GMT 1998 Image display has been good since performing the tests earlier. Disk image shows no gradient and exposure is good. Limb and k-corona images on display window have been centered well and not split vertically. PSPT COMMENT: Tue Dec 15 21:57:58 GMT 1998 Packed up the thermoprinter for shipment back to Boulder since I will be going to FEDEX either this afternoon or tomorrow morning to ship the failed disk drive back to CSMT. Tue Dec 15 22:00:24 GMT 1998 PICS Flat Tue Dec 15 22:01:47 GMT 1998 CHIP Bias Tue Dec 15 22:01:56 GMT 1998 PICS End Flat Tue Dec 15 22:02:40 GMT 1998 CHIP End Bias Tue Dec 15 22:02:50 GMT 1998 CHIP Water Tue Dec 15 22:03:28 GMT 1998 CHIP End Water Tue Dec 15 22:06:54 GMT 1998 MKIII End Patrol Tue Dec 15 22:06:51 GMT 1998 PICS End Patrol Tue Dec 15 22:06:51 GMT 1998 PICS End Patrol Tue Dec 15 22:07:25 GMT 1998 CHIP ending tape COMMENT: Tue Dec 15 22:07:38 GMT 1998 TAPES: MKIV: 98-349 PICS: P01354 CHIP: C00741 LOWL: L00563 Tue Dec 15 22:08:47 GMT 1998 MkIII 18_15.rawmk3 19_22.rawmk3 20_10.rawmk3 20_56.rawmk3 21_41.rawmk3 18_19.rawmk3 19_28.rawmk3 20_14.rawmk3 20_59.rawmk3 21_44.rawmk3 18_22.rawmk3 19_32.rawmk3 20_17.rawmk3 21_02.rawmk3 21_47.rawmk3 18_25.rawmk3 19_35.rawmk3 20_20.rawmk3 21_05.rawmk3 21_50.rawmk3 18_28.rawmk3 19_38.rawmk3 20_23.rawmk3 21_08.rawmk3 21_54.rawmk3 18_32.rawmk3 19_41.rawmk3 20_27.rawmk3 21_12.rawmk3 21_57.rawmk3 18_38.rawmk3 19_45.rawmk3 20_30.rawmk3 21_15.rawmk3 22_00.rawmk3 18_45.rawmk3 19_48.rawmk3 20_33.rawmk3 21_18.rawmk3 22_03.rawmk3 18_52.rawmk3 19_51.rawmk3 20_36.rawmk3 21_21.rawmk3 c18_35.rawmk3 18_55.rawmk3 19_54.rawmk3 20_39.rawmk3 21_25.rawmk3 c18_42.rawmk3 18_58.rawmk3 19_57.rawmk3 20_43.rawmk3 21_28.rawmk3 c18_48.rawmk3 19_05.rawmk3 20_01.rawmk3 20_46.rawmk3 21_31.rawmk3 c19_11.rawmk3 19_08.rawmk3 20_04.rawmk3 20_49.rawmk3 21_34.rawmk3 c19_18.rawmk3 19_15.rawmk3 20_07.rawmk3 20_52.rawmk3 21_37.rawmk3 c19_25.rawmk3

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