----------------------------------------------------------------------------- Mauna Loa Solar Observatory Observer's Log ----------------------------------------------------------------------------- Tue Sep 22 16:37:13 GMT 1998 Year: 98 Doy: 265 Observer: yasukawa WEATHER COMMENT: Tue Sep 22 16:37:52 GMT 1998 Cool, clear, light southeast wind. Tue Sep 22 16:38:14 GMT 1998 CHIP Startup--Initializing new tape Tue Sep 22 16:43:23 GMT 1998 CHIP CHIP Start Patrol Tue Sep 22 16:43:33 GMT 1998 MKIII Start Patrol Tue Sep 22 16:43:45 GMT 1998 PICS Start Patrol Tue Sep 22 17:01:53 GMT 1998 CHIP Bias Tue Sep 22 17:02:40 GMT 1998 PICS Flat Tue Sep 22 17:02:51 GMT 1998 CHIP End Bias Tue Sep 22 17:03:01 GMT 1998 CHIP Water Tue Sep 22 17:03:40 GMT 1998 CHIP End Water Tue Sep 22 17:04:07 GMT 1998 PICS End Flat LOW-L COMMENT: Tue Sep 22 17:18:47 GMT 1998 It seems that Alice's ephemeris fix has successfully gotten the LOWL thru the autumnal equinox without screwing up the guiding. **PSPT PROBLEM**: Tue Sep 22 17:40:40 GMT 1998 Images are quite fuzzy. I think the active mirror is oscillating, this time from the first Run sequences. Mirror circuits are deteriorating. Tue Sep 22 18:00:48 GMT 1998 CHIP Bias Tue Sep 22 18:01:46 GMT 1998 CHIP End Bias Tue Sep 22 18:01:56 GMT 1998 CHIP Water Tue Sep 22 18:02:38 GMT 1998 PICS Flat Tue Sep 22 18:02:35 GMT 1998 CHIP End Water Tue Sep 22 18:04:13 GMT 1998 PICS End Flat **PSPT PROBLEM**: Tue Sep 22 18:10:36 GMT 1998 Since both X and Y meters display the oscillation symptoms, the problem must be at some common point. I see only one common point in the schematics--U4, an AD7592 on the Active Mirror Servo card. The other common factor is the solar image diameter. **PSPT PROBLEM**: Tue Sep 22 18:37:25 GMT 1998 Depending on where the meters are looking at error signals, another common failure point could be the DSP board in the PC. Tue Sep 22 19:02:43 GMT 1998 PICS Flat Tue Sep 22 19:02:58 GMT 1998 CHIP Bias Tue Sep 22 19:03:57 GMT 1998 CHIP End Bias Tue Sep 22 19:04:13 GMT 1998 PICS End Flat Tue Sep 22 19:04:08 GMT 1998 CHIP Water Tue Sep 22 19:04:54 GMT 1998 CHIP End Water COMMENT: Tue Sep 22 19:11:13 GMT 1998 Stopping to reconfigure dome shutter. Tue Sep 22 19:11:40 GMT 1998 PICS End Patrol Tue Sep 22 19:11:40 GMT 1998 PICS End Patrol Tue Sep 22 19:21:25 GMT 1998 MKIII Start Patrol Tue Sep 22 19:21:59 GMT 1998 PICS Start Patrol Tue Sep 22 19:21:59 GMT 1998 PICS Start Patrol Tue Sep 22 20:01:54 GMT 1998 CHIP Gain Tue Sep 22 20:02:40 GMT 1998 PICS Flat Tue Sep 22 20:04:14 GMT 1998 PICS End Flat Tue Sep 22 20:06:36 GMT 1998 CHIP End Gain Tue Sep 22 20:06:47 GMT 1998 CHIP Bias Tue Sep 22 20:07:35 GMT 1998 CHIP End Bias Tue Sep 22 20:07:45 GMT 1998 CHIP Water Tue Sep 22 20:08:21 GMT 1998 CHIP End Water Tue Sep 22 21:02:39 GMT 1998 PICS Flat Tue Sep 22 21:02:53 GMT 1998 CHIP Bias Tue Sep 22 21:04:04 GMT 1998 PICS End Flat Tue Sep 22 21:04:04 GMT 1998 PICS End Flat Tue Sep 22 21:04:07 GMT 1998 CHIP Water Tue Sep 22 21:04:56 GMT 1998 CHIP End Water Tue Sep 22 22:02:40 GMT 1998 PICS Flat Tue Sep 22 22:02:51 GMT 1998 CHIP Bias **CHIP PROBLEM**: Tue Sep 22 22:03:38 GMT 1998 CHIP Exabyte drive bottom green and top amber LEDs are flashing at a 2/sec cadence. Tape data may be bad from some point today. at Tue Sep 22 22:04:52 GMT 1998 CHIP End Water **CHIP PROBLEM**: Tue Sep 22 22:06:52 GMT 1998 Manual indicates LEDs requesting a cleaning. I will run a cleaning tape thru the drive at the end of observations. Tue Sep 22 22:08:35 GMT 1998 PICS End Patrol Tue Sep 22 22:08:29 GMT 1998 CHIP CHIP End Patrol Tue Sep 22 22:09:15 GMT 1998 CHIP ending tape COMMENT: Tue Sep 22 22:09:33 GMT 1998 Tapes: PICS: P01300 CHIP: C00697 LOWL: L00544 Tue Sep 22 22:11:14 GMT 1998 MkIII 16_43.rawmk3 17_48.rawmk3 19_02.rawmk3 20_11.rawmk3 21_15.rawmk3 16_46.rawmk3 17_50.rawmk3 19_04.rawmk3 20_14.rawmk3 21_18.rawmk3 16_49.rawmk3 17_53.rawmk3 19_07.rawmk3 20_17.rawmk3 21_21.rawmk3 16_52.rawmk3 17_56.rawmk3 19_10.rawmk3 20_19.rawmk3 21_24.rawmk3 16_55.rawmk3 17_59.rawmk3 19_13.rawmk3 20_22.rawmk3 21_27.rawmk3 16_58.rawmk3 18_02.rawmk3 19_21.rawmk3 20_25.rawmk3 21_30.rawmk3 17_01.rawmk3 18_08.rawmk3 19_24.rawmk3 20_28.rawmk3 21_32.rawmk3 17_04.rawmk3 18_14.rawmk3 19_27.rawmk3 20_31.rawmk3 21_35.rawmk3 17_07.rawmk3 18_20.rawmk3 19_30.rawmk3 20_34.rawmk3 21_38.rawmk3 17_10.rawmk3 18_24.rawmk3 19_33.rawmk3 20_37.rawmk3 21_41.rawmk3 17_12.rawmk3 18_26.rawmk3 19_36.rawmk3 20_40.rawmk3 21_44.rawmk3 17_15.rawmk3 18_29.rawmk3 19_39.rawmk3 20_43.rawmk3 21_47.rawmk3 17_18.rawmk3 18_32.rawmk3 19_41.rawmk3 20_46.rawmk3 21_50.rawmk3 17_21.rawmk3 18_35.rawmk3 19_44.rawmk3 20_49.rawmk3 21_53.rawmk3 17_24.rawmk3 18_38.rawmk3 19_47.rawmk3 20_52.rawmk3 21_56.rawmk3 17_27.rawmk3 18_41.rawmk3 19_50.rawmk3 20_54.rawmk3 21_59.rawmk3 17_30.rawmk3 18_44.rawmk3 19_53.rawmk3 20_57.rawmk3 22_02.rawmk3 17_33.rawmk3 18_47.rawmk3 19_56.rawmk3 21_00.rawmk3 c18_05.rawmk3 17_36.rawmk3 18_50.rawmk3 19_59.rawmk3 21_03.rawmk3 c18_11.rawmk3 17_39.rawmk3 18_53.rawmk3 20_02.rawmk3 21_06.rawmk3 c18_17.rawmk3 17_42.rawmk3 18_56.rawmk3 20_05.rawmk3 21_09.rawmk3 17_45.rawmk3 18_59.rawmk3 20_08.rawmk3 21_12.rawmk3