----------------------------------------------------------------------------- Mauna Loa Solar Observatory Observer's Log ----------------------------------------------------------------------------- Mon Oct 4 16:24:40 GMT 1999 Year: 99 Doy: 277 Observer: yasukawa WEATHER COMMENT: Mon Oct 4 16:25:59 GMT 1999 Cool, clear, light south wind. Mon Oct 4 16:26:51 GMT 1999 CHIP Startup--Initializing new tape MKIII COMMENT: Mon Oct 4 16:38:41 GMT 1999 >>>> The last observations with MkIII were recorded Thursday September 30, 1999. The $data/MkIII directory on nahenahe is gone. Data transfer from the k-coronameter control computer to nahenahe is strictly MkIV and all mention of MkIII has been removed. Scanlog picks up MkIV file names. MKIV COMMENT: Mon Oct 4 16:42:34 GMT 1999 Software changes for MkIV today. There was a digital wrap around in I and Q at really low heights, possibly below useful height, but just in case, the corrector table has been changed for so that the lowest height has 1/2 the gain of yesterday. The corrector table now smooths over the hairline positions. This way as the hairlines drift during the day, there will not be artifacts frothe correct remaining in the data. Sky transmission is picked up continuously now so that there should be fewer glitches at ends of scans. Mon Oct 4 17:02:02 GMT 1999 CHIP Bias Mon Oct 4 17:03:00 GMT 1999 CHIP End Bias Mon Oct 4 17:03:10 GMT 1999 CHIP Water Mon Oct 4 17:03:56 GMT 1999 CHIP End Water Mon Oct 4 17:23:55 GMT 1999 MKIV Start Patrol MKIV COMMENT: Mon Oct 4 17:29:47 GMT 1999 Lost MkIV phasing this scan. Also lost it twice previously today. This is seen as the corona going negative. Mon Oct 4 17:32:51 GMT 1999 MKIV Start Patrol Mon Oct 4 17:39:50 GMT 1999 MKIV Start Cal Mon Oct 4 18:01:59 GMT 1999 CHIP Bias Mon Oct 4 18:02:26 GMT 1999 PICS Flat Mon Oct 4 18:03:00 GMT 1999 CHIP End Bias Mon Oct 4 18:03:10 GMT 1999 CHIP Water Mon Oct 4 18:03:52 GMT 1999 CHIP End Water Mon Oct 4 18:04:41 GMT 1999 MKIV Start Patrol Mon Oct 4 18:04:58 GMT 1999 PICS End Flat Mon Oct 4 18:11:31 GMT 1999 MKIV Start Patrol Mon Oct 4 18:30:17 GMT 1999 MKIV Start Patrol MKIV COMMENT: Mon Oct 4 18:37:50 GMT 1999 Last two coronal scans run with the guider hat removed. In real-time there was no aparent change in "scattered light" as seen in the intensity to Q crosstalk. It is still significant at elevated height and worse in the West. Mon Oct 4 18:40:36 GMT 1999 MKIV Start Patrol MKIV COMMENT: Mon Oct 4 18:46:46 GMT 1999 Last pair of scans with guider hat off and with light trap removed. It isn't much of a light trap as years of sunlight have baked off all the black anodizing. Mon Oct 4 18:51:43 GMT 1999 MKIV Start Patrol Mon Oct 4 19:00:28 GMT 1999 PICS polarization_calibration MKIV COMMENT: Mon Oct 4 19:02:17 GMT 1999 No changes made an improvement in the -Q at elevated height. Any E-W assymetry could be attributed to bright corona in the West. Mon Oct 4 19:03:20 GMT 1999 CHIP End Bias Mon Oct 4 19:03:31 GMT 1999 CHIP Water Mon Oct 4 19:04:16 GMT 1999 CHIP End Water Mon Oct 4 19:21:10 GMT 1999 MKIV Start Correct MKIII COMMENT: Mon Oct 4 19:21:14 GMT 1999 Correct using new code which adjusts corrector table gain for sky transmission. Mon Oct 4 19:22:42 GMT 1999 MKIV End Correct Mon Oct 4 19:22:51 GMT 1999 MKIV Start Patrol Mon Oct 4 19:25:08 GMT 1999 MKIV Start Patrol Mon Oct 4 20:02:00 GMT 1999 CHIP Gain Mon Oct 4 20:08:04 GMT 1999 CHIP End Gain Mon Oct 4 20:08:22 GMT 1999 CHIP Bias Mon Oct 4 20:08:45 GMT 1999 PICS End Patrol Mon Oct 4 20:09:24 GMT 1999 CHIP End Bias Mon Oct 4 20:09:41 GMT 1999 CHIP Water Mon Oct 4 20:10:31 GMT 1999 CHIP End Water Mon Oct 4 20:13:39 GMT 1999 CHIP CHIP End Patrol Mon Oct 4 20:20:07 GMT 1999 MKIV Start Patrol Mon Oct 4 20:20:17 GMT 1999 CHIP CHIP Start Patrol Mon Oct 4 20:20:17 GMT 1999 CHIP CHIP Start Patrol MKIV COMMENT: Mon Oct 4 20:27:46 GMT 1999 Working on spar, lost tracking temporarilly. Mon Oct 4 21:03:01 GMT 1999 CHIP Bias Mon Oct 4 21:04:09 GMT 1999 CHIP End Bias Mon Oct 4 21:04:20 GMT 1999 CHIP Water Mon Oct 4 21:05:09 GMT 1999 CHIP End Water MKIV COMMENT: Mon Oct 4 21:36:22 GMT 1999 All manner of stuff floating by in the image. Another Kona wind day. Mon Oct 4 22:03:01 GMT 1999 CHIP Bias Mon Oct 4 22:04:05 GMT 1999 CHIP End Bias Mon Oct 4 22:04:17 GMT 1999 CHIP Water Mon Oct 4 22:05:02 GMT 1999 CHIP End Water Mon Oct 4 22:38:54 GMT 1999 MKIV Start Patrol Mon Oct 4 22:57:55 GMT 1999 MKIV Start Patrol MKIV COMMENT: Mon Oct 4 22:57:59 GMT 1999 short break to re-wire analog power transformer and move it into the ocp rack Mon Oct 4 23:02:59 GMT 1999 CHIP Bias Mon Oct 4 23:03:57 GMT 1999 CHIP End Bias Mon Oct 4 23:04:12 GMT 1999 CHIP Water Mon Oct 4 23:05:03 GMT 1999 CHIP End Water MKIV COMMENT: Mon Oct 4 23:10:04 GMT 1999 Sky is REALLY bright. Scaling of scope trace indicates >40millionths. There is a signature of saturation in the gif display. WEATHER COMMENT: Mon Oct 4 23:36:42 GMT 1999 Sky too bright, either thin cirrus or haze from down below. Shutting down. COMMENT: Mon Oct 4 23:37:25 GMT 1999 Tapes: MKIV: 99-277 PICS: P01566 CHIP: C00941 LOWL: L00631 in drive #0 99 CHIP CHIP End Patrol Mon Oct 4 23:42:21 GMT 1999 MkIV 16_53.rawmk4 18_33.rawmk4 20_31.rawmk4 21_50.rawmk4 23_15.rawmk4 16_57.rawmk4 18_40.rawmk4 20_34.rawmk4 21_53.rawmk4 23_18.rawmk4 17_00.rawmk4 18_43.rawmk4 20_37.rawmk4 21_56.rawmk4 23_21.rawmk4 17_03.rawmk4 18_51.rawmk4 20_40.rawmk4 21_59.rawmk4 23_24.rawmk4 17_06.rawmk4 18_54.rawmk4 20_43.rawmk4 22_02.rawmk4 23_27.rawmk4 17_09.rawmk4 19_00.rawmk4 20_46.rawmk4 22_05.rawmk4 23_30.rawmk4 17_12.rawmk4 19_06.rawmk4 20_49.rawmk4 22_07.rawmk4 23_33.rawmk4 17_15.rawmk4 19_13.rawmk4 20_52.rawmk4 22_10.rawmk4 23_36.rawmk4 17_18.rawmk4 19_25.rawmk4 20_55.rawmk4 22_13.rawmk4 c17_39.rawmk4 17_23.rawmk4 19_28.rawmk4 20_58.rawmk4 22_16.rawmk4 c17_46.rawmk4 17_27.rawmk4 19_31.rawmk4 21_04.rawmk4 22_22.rawmk4 c17_52.rawmk4 17_33.rawmk4 19_34.rawmk4 21_10.rawmk4 22_29.rawmk4 c18_57.rawmk4 17_36.rawmk4 19_40.rawmk4 21_17.rawmk4 22_35.rawmk4 c19_03.rawmk4 17_42.rawmk4 19_46.rawmk4 21_20.rawmk4 22_38.rawmk4 c19_10.rawmk4 17_49.rawmk4 19_52.rawmk4 21_23.rawmk4 22_41.rawmk4 c19_37.rawmk4 17_55.rawmk4 19_55.rawmk4 21_26.rawmk4 22_44.rawmk4 c19_43.rawmk4 18_04.rawmk4 19_58.rawmk4 21_29.rawmk4 22_47.rawmk4 c19_49.rawmk4 18_07.rawmk4 20_01.rawmk4 21_32.rawmk4 22_57.rawmk4 c21_01.rawmk4 18_11.rawmk4 20_04.rawmk4 21_35.rawmk4 23_00.rawmk4 c21_07.rawmk4 18_14.rawmk4 20_20.rawmk4 21_38.rawmk4 23_03.rawmk4 c21_14.rawmk4 18_17.rawmk4 20_23.rawmk4 21_41.rawmk4 23_06.rawmk4 c22_19.rawmk4 18_20.rawmk4 20_26.rawmk4 21_44.rawmk4 23_09.rawmk4 c22_25.rawmk4 18_30.rawmk4 20_29.rawmk4 21_47.rawmk4 23_12.rawmk4 c22_32.rawmk4