----------------------------------------------------------------------------- Mauna Loa Solar Observatory Observer's Log ----------------------------------------------------------------------------- Mon Mar 4 17:06:24 GMT 2002 Year: 02 Doy: 063 Observer: yasukawa WEATHER COMMENT: Mon Mar 4 17:07:28 GMT 2002 Cold, in thick, broken altostratus, south wind. Mon Mar 4 18:51:08 GMT 2002 MKIV Start Patrol Mon Mar 4 18:51:24 GMT 2002 CHIP Start Patrol Mon Mar 4 18:51:33 GMT 2002 PICS Start Patrol WEATHER COMMENT: Mon Mar 4 18:51:26 GMT 2002 Sun cleared altostratus cloud. Starting observations. **MKIV PROBLEM**: Mon Mar 4 18:51:56 GMT 2002 Sky tx is 822. WEATHER COMMENT: Mon Mar 4 18:57:54 GMT 2002 Scattered patches of thin cirrus. Mon Mar 4 19:02:05 GMT 2002 CHIP LSD PSPT COMMENT: Mon Mar 4 19:02:29 GMT 2002 Observation started. Mon Mar 4 19:04:20 GMT 2002 CHIP End LSD Mon Mar 4 19:04:35 GMT 2002 CHIP BiasLSD Mon Mar 4 19:05:33 GMT 2002 CHIP End BiasLSD Mon Mar 4 19:05:42 GMT 2002 CHIP Bias Mon Mar 4 19:06:40 GMT 2002 CHIP End Bias **MKIV PROBLEM**: Mon Mar 4 19:18:24 GMT 2002 Sky tx 927, spar guider still jumping around, turned AGC off. Mon Mar 4 19:27:43 GMT 2002 MKIV Start Cal Mon Mar 4 19:44:51 GMT 2002 PICS End Patrol Mon Mar 4 19:46:39 GMT 2002 MKIV End Cal Mon Mar 4 19:46:49 GMT 2002 MKIV Start Patrol Mon Mar 4 19:53:46 GMT 2002 PICS Start Patrol PICS COMMENT: Mon Mar 4 19:53:31 GMT 2002 Changed occulter size from #5 to #4 (1971 to 1981) as a result to Tom Holzer's assessment that the current size was OK but larger would be better. **MKIV PROBLEM**: Mon Mar 4 19:57:10 GMT 2002 Sky tx is now 1007. **MKIV PROBLEM**: Mon Mar 4 19:58:59 GMT 2002 Turned AGC back on. **MKIV PROBLEM**: Mon Mar 4 20:04:53 GMT 2002 In looking at the sky tx problem, these are the things I see... The optical path, except for a crack in the filter or lens at the front near one edge of the aperture, looks good. Filter dusted off. Optical path assessed from port near photocell mask. Power supply to LM355Ns on guider compensation board #1 in guider chassis is +11.33 and -9.83 VDC (low?). Power supply probably OK (both + & - available). Since the signal from the telescope arrive on board then go to the readout, to the AR11 (no longer connected), and to the spar guider AGC, and both the readout and AGC appear to be affected, the loss may be at the drivers in the telescope. WEATHER COMMENT: Mon Mar 4 21:44:59 GMT 2002 In orographic clouds. PSPT COMMENT: Mon Mar 4 21:45:13 GMT 2002 Stopped observations. Mon Mar 4 22:04:31 GMT 2002 PICS End Patrol Mon Mar 4 22:05:18 GMT 2002 CHIP End Patrol Mon Mar 4 22:10:07 GMT 2002 MKIV End Patrol MKIV COMMENT: Mon Mar 4 22:21:15 GMT 2002 Spar stowed with heating blanket installed and camera power on. Mon Mar 4 22:22:08 GMT 2002 MkIV 18_51.rawmk4 19_36.rawmk4 20_19.rawmk4 21_00.rawmk4 21_39.rawmk4 18_54.rawmk4 19_43.rawmk4 20_22.rawmk4 21_04.rawmk4 21_45.rawmk4 18_57.rawmk4 19_46.rawmk4 20_25.rawmk4 21_07.rawmk4 21_49.rawmk4 19_00.rawmk4 19_49.rawmk4 20_28.rawmk4 21_10.rawmk4 21_52.rawmk4 19_02.rawmk4 19_52.rawmk4 20_31.rawmk4 21_13.rawmk4 21_55.rawmk4 19_05.rawmk4 19_55.rawmk4 20_33.rawmk4 21_15.rawmk4 21_58.rawmk4 19_08.rawmk4 19_58.rawmk4 20_36.rawmk4 21_18.rawmk4 22_00.rawmk4 19_11.rawmk4 20_01.rawmk4 20_39.rawmk4 21_21.rawmk4 22_03.rawmk4 19_14.rawmk4 20_04.rawmk4 20_42.rawmk4 21_24.rawmk4 22_06.rawmk4 19_17.rawmk4 20_07.rawmk4 20_45.rawmk4 21_27.rawmk4 c19_27.rawmk4 19_20.rawmk4 20_10.rawmk4 20_48.rawmk4 21_30.rawmk4 c19_33.rawmk4 19_23.rawmk4 20_13.rawmk4 20_51.rawmk4 21_33.rawmk4 c19_39.rawmk4 19_30.rawmk4 20_16.rawmk4 20_54.rawmk4 21_36.rawmk4