----------------------------------------------------------------------------- Mauna Loa Solar Observatory Observer's Log ----------------------------------------------------------------------------- Mon Aug 30 16:27:58 GMT 1999 Year: 99 Doy: 242 Observer: yasukawa WEATHER COMMENT: Mon Aug 30 16:28:47 GMT 1999 Cool, clear, light south breeze. Startup--Initializing new tape Mon Aug 30 16:37:55 GMT 1999 MKIV Start Patrol Mon Aug 30 16:38:04 GMT 1999 PICS Start Patrol Mon Aug 30 16:38:04 GMT 1999 PICS Start Patrol Mon Aug 30 17:02:49 GMT 1999 CHIP Bias Mon Aug 30 17:03:49 GMT 1999 CHIP End Bias Mon Aug 30 17:03:59 GMT 1999 CHIP Water Mon Aug 30 17:04:37 GMT 1999 CHIP End Water GONG COMMENT: Mon Aug 30 17:43:16 GMT 1999 Dsvid requested more PICS focus procedures and tests so I will go down to GONG to do the weekly PM before I start on PICS. Mon Aug 30 18:01:04 GMT 1999 PICS Flat Mon Aug 30 18:01:49 GMT 1999 CHIP Bias Mon Aug 30 18:02:46 GMT 1999 CHIP End Bias Mon Aug 30 18:03:02 GMT 1999 CHIP Water Mon Aug 30 18:03:41 GMT 1999 PICS End Flat Mon Aug 30 18:03:41 GMT 1999 PICS End Flat GONG COMMENT: Mon Aug 30 18:06:30 GMT 1999 Back from GONG Mon Aug 30 18:15:18 GMT 1999 MKIV Start Cal Mon Aug 30 18:36:55 GMT 1999 MKIV Start Patrol PICS COMMENT: Mon Aug 30 18:42:26 GMT 1999 Stopping to set-up for further focus tests. Installing Hartman mask. Will attempt to determine which way to move the collimator in order to refocus it at 2300 microns closer to the occulter, then, I will run focus steps with the camera in 100 micron increments to find the best focus. moving the collimator will theoretically focus the disk and limb images at the same place. The focus at different camera positions now. Mon Aug 30 19:00:58 GMT 1999 CHIP Bias Mon Aug 30 19:01:59 GMT 1999 CHIP End Bias Mon Aug 30 19:02:13 GMT 1999 CHIP Water Mon Aug 30 19:02:54 GMT 1999 CHIP End Water PICS COMMENT: Mon Aug 30 19:06:03 GMT 1999 Start position for camera is 15371. Swapped cables, collimator position indicated as 15370. Moved collimator to 17672 (+2302). Swapped cables, Camera position now read-out as 17672, although it is secured and did not move. Loosened camera hold-down screws and will begin focus test to see if moving camera to higher micrometer values improve the focus. I will do this in approximately 100 micron increments, the micrometer values will be written to disk along with the images. Using focus routine in cmdtool developed on Friday. Mon Aug 30 19:12:22 GMT 1999 PICS Start Focus PICS COMMENT: Mon Aug 30 19:28:15 GMT 1999 Ran camera from 17672 to 18276 in approximately 100 micron increments. Could not really see improvement in focus, although focus did not get worse until the last couple of steps. I will return camera to original position, 17672, and the start test over after moving collimator in other direction. PICS COMMENT: Mon Aug 30 19:33:42 GMT 1999 Moved camera micrometer back to 17683, pushed camera "up" against micrometer shaft. Swapped cables, collimator position read at 17682 on micrometer controller. Moving it back to original position (-2300 microns) then in opposite direction (-2300 microns) to approximately 13082. PICS COMMENT: Mon Aug 30 19:41:37 GMT 1999 Collimator position at 13070 on micrometer controller. Swapping cables. Repeating focus test, increasing Camera position in 100 micron increments. PICS COMMENT: Mon Aug 30 19:43:22 GMT 1999 Camer focus test start position now changed to 13070 on micrometer controller. Mon Aug 30 20:00:48 GMT 1999 CHIP Gain PICS COMMENT: Mon Aug 30 20:03:47 GMT 1999 It was very difficult to tell which direction was better. My gut feeling was the second set of tests -- decreasing the collimator micrometer values -- made the focus worse, but the changes were subtle at this end and with no animation or flicker tool, comparison was difficult. I will email David to take a look at the images and agree or disagree with my assessment and also to determine if further focus tests are needed beyond the tests I did at each collimator position is needed. Setting collimator and camera back to original positions. COMMENT: Mon Aug 30 20:23:59 GMT 1999 CHIP looking at dome, stopping to reconfigure dome shutter. Mon Aug 30 20:25:18 GMT 1999 CHIP CHIP End Patrol Mon Aug 30 20:32:47 GMT 1999 MKIV Start Patrol Mon Aug 30 20:33:09 GMT 1999 CHIP CHIP Start Patrol PICS COMMENT: Mon Aug 30 20:35:37 GMT 1999 Set things back and then moved camera to David's "good disk focus" position. Ran one more Focus loop but micrometer value did not get entered correctly. Only "671" may have gotten into header. Repeating with the correct micrometer entry of 15671. PICS COMMENT: Mon Aug 30 20:40:47 GMT 1999 OK, test done for now. I will not secure covers for now but I will remove Hartman mask and resume Patrol after getting out of Focus. Mon Aug 30 20:45:26 GMT 1999 PICS Start Patrol PICS COMMENT: Mon Aug 30 20:58:49 GMT 1999 Stopping PICS after the 2100 UT series and will set up for follow-up tests. After some analysis, David determined that we should move the collimator -6900 microns from the original position and move the camera +600 microns from the original position. I will run thru a range of camera positions around that value before securing the camera for the day. Mon Aug 30 21:01:49 GMT 1999 CHIP End Bias Mon Aug 30 21:02:03 GMT 1999 CHIP Water Mon Aug 30 21:02:48 GMT 1999 CHIP End Water Mon Aug 30 21:07:49 GMT 1999 PICS End Patrol PICS COMMENT: Mon Aug 30 21:15:57 GMT 1999 Installed Hartman mask. Moved collimator from 15671 to 8767 microns, approximately -6900 microns. Unsecured camera. Camera start position = 8767. PICS COMMENT: Mon Aug 30 21:21:32 GMT 1999 David thought the range for the test would be +/- 1000 microns around new theoretical good position of +600 from original so I moved the camera -400, 1000 microns away from new "good" position and will run thru a range to +1000 to the other side (toward rear). Mon Aug 30 21:24:41 GMT 1999 PICS Start Focus PICS COMMENT: Mon Aug 30 21:37:21 GMT 1999 Steps in approximately 100 microns increments will be uneven because I cannot back up without going upstairs and pushing on the camera due to the weak spring. PICS COMMENT: Mon Aug 30 22:00:51 GMT 1999 Images got bad after passing the +600 setting (9367) in the positive direction (further back), but went thru the test anyway. Double images on disk very obvious at +900 (10230) from best guesstimate of +600. PICS COMMENT: Mon Aug 30 22:05:09 GMT 1999 Test pau. Setting camera forward to 9325.4 which is David's best guesstimate. Collimator left at new setting. Mon Aug 30 22:11:21 GMT 1999 CHIP CHIP End Patrol PICS COMMENT: Mon Aug 30 22:13:14 GMT 1999 Secured camera forward against the micrometer shaft. Mon Aug 30 22:14:01 GMT 1999 CHIP ending tape Mon Aug 30 22:14:20 GMT 1999 PICS Start Focus PICS COMMENT: Mon Aug 30 22:14:43 GMT 1999 Running a Focus ta last secured position. Collimator is 8767 (-6900 from original position). Camera is at 9325 (+600 from original position.) Mon Aug 30 22:17:09 GMT 1999 MKIV End Patrol PICS COMMENT: Mon Aug 30 22:21:02 GMT 1999 Shutting down for the day, I will leave the PICS as is, with covers off for a quick start on any changes David and Tony might specify after looking at the test results. We will resume tomorrow morning. COMMENT: Mon Aug 30 22:23:47 GMT 1999 TAPES: MKIV: 99-242 PICS; p01534 CHIP: C00910 LOWL: L00622 in drive 0 Mon Aug 30 22:25:03 GMT 1999 MkIII 16_38.rawmk3 17_40.rawmk3 18_54.rawmk3 19_57.rawmk3 21_24.rawmk3 16_41.rawmk3 17_44.rawmk3 18_57.rawmk3 20_00.rawmk3 21_28.rawmk3 16_44.rawmk3 17_47.rawmk3 19_01.rawmk3 20_04.rawmk3 21_31.rawmk3 16_48.rawmk3 17_50.rawmk3 19_05.rawmk3 20_32.rawmk3 21_35.rawmk3 16_51.rawmk3 17_54.rawmk3 19_08.rawmk3 20_36.rawmk3 21_38.rawmk3 16_55.rawmk3 17_57.rawmk3 19_11.rawmk3 20_39.rawmk3 21_42.rawmk3 16_58.rawmk3 18_01.rawmk3 19_15.rawmk3 20_43.rawmk3 21_45.rawmk3 17_02.rawmk3 18_04.rawmk3 19_18.rawmk3 20_46.rawmk3 21_49.rawmk3 17_05.rawmk3 18_08.rawmk3 19_22.rawmk3 20_50.rawmk3 21_52.rawmk3 17_09.rawmk3 18_11.rawmk3 19_25.rawmk3 20_53.rawmk3 21_56.rawmk3 17_12.rawmk3 18_19.rawmk3 19_29.rawmk3 20_57.rawmk3 21_59.rawmk3 17_16.rawmk3 18_26.rawmk3 19_32.rawmk3 21_00.rawmk3 22_03.rawmk3 17_19.rawmk3 18_33.rawmk3 19_36.rawmk3 21_04.rawmk3 22_06.rawmk3 17_23.rawmk3 18_37.rawmk3 19_39.rawmk3 21_07.rawmk3 22_10.rawmk3 17_26.rawmk3 18_40.rawmk3 19_43.rawmk3 21_11.rawmk3 22_13.rawmk3 17_29.rawmk3 18_43.rawmk3 19_46.rawmk3 21_14.rawmk3 c18_15.rawmk3 17_33.rawmk3 18_47.rawmk3 19_50.rawmk3 21_17.rawmk3 c18_22.rawmk3 17_37.rawmk3 18_50.rawmk3 19_53.rawmk3 21_21.rawmk3 c18_29.rawmk3