----------------------------------------------------------------------------- Mauna Loa Solar Observatory Observer's Log ----------------------------------------------------------------------------- Fri Sep 18 16:33:12 GMT 1998 Year: 98 Doy: 261 Observer: yasukawa WEATHER COMMENT: Fri Sep 18 16:34:14 GMT 1998 Cool, clear, light southwest breeze. Fri Sep 18 16:38:55 GMT 1998 CHIP Startup--Initializing new tape Fri Sep 18 16:44:25 GMT 1998 CHIP CHIP Start Patrol Fri Sep 18 16:44:44 GMT 1998 PICS Start Patrol Fri Sep 18 16:46:42 GMT 1998 MKIII Start Patrol COMMENT: Fri Sep 18 16:51:54 GMT 1998 Network is down somewhere before UH. Fri Sep 18 17:00:42 GMT 1998 PICS Flat Fri Sep 18 17:02:10 GMT 1998 PICS End Flat Fri Sep 18 17:02:48 GMT 1998 CHIP Bias Fri Sep 18 17:03:41 GMT 1998 CHIP End Bias Fri Sep 18 17:03:51 GMT 1998 CHIP Water Fri Sep 18 17:04:32 GMT 1998 CHIP End Water Fri Sep 18 18:00:45 GMT 1998 PICS Flat Fri Sep 18 18:01:47 GMT 1998 CHIP Bias COMMENT: Fri Sep 18 18:02:07 GMT 1998 Network is still down. 1998 PICS End Flat Fri Sep 18 18:02:40 GMT 1998 CHIP End Bias Fri Sep 18 18:02:56 GMT 1998 CHIP Water Fri Sep 18 18:03:41 GMT 1998 CHIP End Water Fri Sep 18 19:00:45 GMT 1998 PICS Flat Fri Sep 18 19:00:58 GMT 1998 CHIP Bias Fri Sep 18 19:01:56 GMT 1998 CHIP End Bias Fri Sep 18 19:02:06 GMT 1998 CHIP Water Fri Sep 18 19:02:06 GMT 1998 CHIP Water Fri Sep 18 19:02:59 GMT 1998 CHIP End Water **PSPT PROBLEM**: Fri Sep 18 19:05:22 GMT 1998 1900 awakening took 13 tries before mirror settled enough to move onto 'Active mirror OK' prompt. While taking exposures mirror servo meters were visibly oscillating +/- 4 mV at a sorta choppy 1-2/sec frequency. **PSPT PROBLEM**: Fri Sep 18 19:18:22 GMT 1998 Mid program, mirror is oscillating again. **PSPT PROBLEM**: Fri Sep 18 19:22:28 GMT 1998 Mirror settled and program continued. COMMENT: Fri Sep 18 19:26:13 GMT 1998 Stopping to reconfigure dome shutter. Patrol Fri Sep 18 19:27:29 GMT 1998 CHIP CHIP End Patrol Fri Sep 18 19:36:31 GMT 1998 MKIII Start Patrol Fri Sep 18 19:36:58 GMT 1998 PICS Start Patrol Fri Sep 18 19:36:53 GMT 1998 CHIP CHIP Start Patrol **PSPT PROBLEM**: Fri Sep 18 19:37:16 GMT 1998 last images on PSPT very soft, probably due to mirror oscillation. COMMENT: Fri Sep 18 19:59:29 GMT 1998 Network still down. Intermittently up to sites other than mainland ones. **PSPT PROBLEM**: Fri Sep 18 20:01:34 GMT 1998 Mirror oscillating at start of 2000 UT awakening. Swings at +/- 4 mV, will see if it can overcome the oscillations. Fri Sep 18 20:04:07 GMT 1998 PICS End Flat Fri Sep 18 20:06:45 GMT 1998 CHIP End Gain Fri Sep 18 20:06:55 GMT 1998 CHIP Bias Fri Sep 18 20:07:43 GMT 1998 CHIP End Bias Fri Sep 18 20:07:53 GMT 1998 CHIP Water Fri Sep 18 20:08:29 GMT 1998 CHIP End Water **PSPT PROBLEM**: Fri Sep 18 20:11:26 GMT 1998 PSPT could not lock guider. Quit. Turned off PSPT to "rest" it. **PSPT PROBLEM**: Fri Sep 18 20:37:51 GMT 1998 PSPT started up again (typed Run) after a rest period. **PSPT PROBLEM**: Fri Sep 18 21:01:18 GMT 1998 Mirror servo meters swinging +/- 30 mV lazily at around 0.5/sec freq. Image very soft. Fri Sep 18 21:02:47 GMT 1998 PICS Flat Fri Sep 18 21:02:50 GMT 1998 CHIP Bias Fri Sep 18 21:03:46 GMT 1998 CHIP End Bias Fri Sep 18 21:03:56 GMT 1998 CHIP Water Fri Sep 18 21:04:16 GMT 1998 PICS End Flat Fri Sep 18 21:04:40 GMT 1998 CHIP End Water **PSPT PROBLEM**: Fri Sep 18 21:23:59 GMT 1998 Mirror oscillating, next Obs run would not start up. Quit. WEATHER COMMENT: Fri Sep 18 21:25:49 GMT 1998 Passing cirrus. **PSPT PROBLEM**: Fri Sep 18 21:50:51 GMT 1998 Inspected Mirror servo card. Removed some corrosion between two solder joints on underside of board near edge connector. Pair of jumper wires soldered to U3 were heat-fused where they crossed near the IC solderjoints. Under wire's insulation was melted thru, couldn't see if over wire's insulation had melted. Two wires are fairly tight, but I managed to separate them a little bit. There is some corrosion or dry-deposition on the U4 header at pins 7 and 8. Cleaned that off. U4 may be a point where the +/- input to the drive amplifiers may be getting oscillated. Fri Sep 18 22:01:50 GMT 1998 CHIP Bias Fri Sep 18 22:02:38 GMT 1998 PICS Flat Fri Sep 18 22:02:51 GMT 1998 CHIP End Bias Fri Sep 18 22:03:05 GMT 1998 CHIP Water Fri Sep 18 22:04:04 GMT 1998 PICS End Flat Fri Sep 18 22:04:04 GMT 1998 PICS End Flat Fri Sep 18 22:08:43 GMT 1998 PICS End Patrol Fri Sep 18 22:10:32 GMT 1998 CHIP CHIP End Patrol COMMENT: Fri Sep 18 22:11:20 GMT 1998 Tapes: PICS: P01297 CHIP: C00694 LOWL: L00543 Fri Sep 18 22:15:35 GMT 1998 MkIII 16_46.rawmk3 17_51.rawmk3 19_05.rawmk3 20_14.rawmk3 21_18.rawmk3 16_49.rawmk3 17_54.rawmk3 19_08.rawmk3 20_17.rawmk3 21_21.rawmk3 16_52.rawmk3 17_57.rawmk3 19_11.rawmk3 20_20.rawmk3 21_24.rawmk3 16_55.rawmk3 17_59.rawmk3 19_14.rawmk3 20_23.rawmk3 21_27.rawmk3 16_58.rawmk3 18_05.rawmk3 19_16.rawmk3 20_26.rawmk3 21_30.rawmk3 17_01.rawmk3 18_12.rawmk3 19_19.rawmk3 20_29.rawmk3 21_33.rawmk3 17_04.rawmk3 18_18.rawmk3 19_22.rawmk3 20_32.rawmk3 21_36.rawmk3 17_07.rawmk3 18_21.rawmk3 19_25.rawmk3 20_35.rawmk3 21_39.rawmk3 17_10.rawmk3 18_24.rawmk3 19_28.rawmk3 20_37.rawmk3 21_42.rawmk3 17_13.rawmk3 18_27.rawmk3 19_36.rawmk3 20_40.rawmk3 21_45.rawmk3 17_16.rawmk3 18_30.rawmk3 19_39.rawmk3 20_43.rawmk3 21_48.rawmk3 17_19.rawmk3 18_33.rawmk3 19_42.rawmk3 20_46.rawmk3 21_51.rawmk3 17_21.rawmk3 18_36.rawmk3 19_45.rawmk3 20_49.rawmk3 21_54.rawmk3 17_24.rawmk3 18_38.rawmk3 19_48.rawmk3 20_52.rawmk3 21_57.rawmk3 17_27.rawmk3 18_41.rawmk3 19_51.rawmk3 20_55.rawmk3 21_59.rawmk3 17_30.rawmk3 18_44.rawmk3 19_54.rawmk3 20_58.rawmk3 22_02.rawmk3 17_33.rawmk3 18_47.rawmk3 19_57.rawmk3 21_01.rawmk3 22_05.rawmk3 17_36.rawmk3 18_50.rawmk3 19_59.rawmk3 21_04.rawmk3 22_08.rawmk3 17_39.rawmk3 18_53.rawmk3 20_02.rawmk3 21_07.rawmk3 22_11.rawmk3 17_42.rawmk3 18_56.rawmk3 20_05.rawmk3 21_10.rawmk3 c18_02.rawmk3 17_45.rawmk3 18_59.rawmk3 20_08.rawmk3 21_13.rawmk3 c18_09.rawmk3 17_48.rawmk3 19_02.rawmk3 20_11.rawmk3 21_15.rawmk3 c18_15.rawmk3