Mauna Loa Solar Observatory Observer's Log ----------------------------------------------------------------------------- Wed Aug 17 16:21:57 GMT 1994 Year: 94 Doy: 229 Observer: yasukawa WEATHER COMMENT: Wed Aug 17 16:22:18 GMT 1994 Cool, in cirrus, light southeast wind. Temp = 45F. LOW-L COMMENT: Wed Aug 17 16:22:58 GMT 1994 Removed L00093 from unit 0, loaded L0095. Wed Aug 17 16:28:44 GMT 1994: Patrol Start Wed Aug 17 17:02:16 GMT 1994: Calibration MKIII COMMENT: Wed Aug 17 17:25:21 GMT 1994 Starting MKIII, cirrus is thinning out. COMMENT: Wed Aug 17 17:47:42 GMT 1994 Replaced GONG batteries and charger. Wed Aug 17 18:02:15 GMT 1994: Calibration Wed Aug 17 19:02:16 GMT 1994: Calibration COMMENT: Wed Aug 17 19:29:25 GMT 1994 Reconfigured dome shutter. MKIII COMMENT: Wed Aug 17 19:29:44 GMT 1994 Forgot to do so earlier because I got busy with other stuff, but I looked into the MKIII barrel from the front and saw that the tilt plates cast a shadow on the first baffle just behind them, but that shadow doesn't appear on the following baffle. WEATHER COMMENT: Wed Aug 17 19:32:55 GMT 1994 Cirrus is thinning, may get a hole. WEATHER COMMENT: Wed Aug 17 19:39:48 GMT 1994 Clear Wed Aug 17 20:02:21 GMT 1994: Calibration DPMON COMMENT: Wed Aug 17 20:16:06 GMT 1994 Mask placed over west - half of backside of Daystar filter. DPMON COMMENT: Wed Aug 17 20:21:35 GMT 1994 Revised disc exposure from 120ms to 240ms. WEATHER COMMENT: Wed Aug 17 20:22:38 GMT 1994 Rats! Back in thin cirrus. I'll finish the vignetting test if the cirrus doesn't get too thick, and repeat it again tomorrow if sky is better. DPMON COMMENT: Wed Aug 17 20:30:10 GMT 1994 Mask moved to cover top half of Daystar back aperture. Exposure 240ms. DPMON COMMENT: Wed Aug 17 20:33:35 GMT 1994 Mask was not exactly vertical on last series, misjudged the position when rotated into beam. This top mask series is close to horizontal when rotated into beam. DPMON COMMENT: Wed Aug 17 20:37:17 GMT 1994 Revised exposure back to 120ms. DPMON COMMENT: Wed Aug 17 20:44:34 GMT 1994 Masked west side again, with mask edge more vertical this time. Exposure 120ms DPMON COMMENT: Wed Aug 17 20:48:35 GMT 1994 Revised disc exposure to 240 ms. MKIII COMMENT: Wed Aug 17 20:55:14 GMT 1994 Tilt-plate shadow looks the same as earlier. DPMON COMMENT: Wed Aug 17 20:55:38 GMT 1994 Removed mask. Exposure 240ms. DPMON COMMENT: Wed Aug 17 20:56:50 GMT 1994 Revised exposure back to 120ms. WEATHER COMMENT: Wed Aug 17 20:57:17 GMT 1994 Still in cirrus, its a little thicker now. Wed Aug 17 21:02:20 GMT 1994: Calibration WEATHER COMMENT: Wed Aug 17 21:32:42 GMT 1994 Cirrus thinned out, but sky is very noisy. Some very thin cirrus may still inhabit this hole. Wed Aug 17 22:02:16 GMT 1994: Calibration MKIII COMMENT: Wed Aug 17 22:07:04 GMT 1994 Looked into barrel for tilt-plate vignetting and shadows still look the same. WEATHER COMMENT: Wed Aug 17 22:11:52 GMT 1994 In thicker cirrus again. Orographic clouds are forming all over the station. Wed Aug 17 22:14:15 GMT 1994: Patrol End COMMENT: Wed Aug 17 22:14:38 GMT 1994 Activity report: QP: 52; 62; 82; No coronal activity Tapes: MKIII: H00825 DPMON: P00137 LOW-L: L00094 in unit 1 L00093 removed from unit 0 this morning. Wed Aug 17 22:17:28 GMT 1994: Filemark SCAN-LOG SCAN-LOG 16:29:26. 8/17/94 DOY 229 17:27:52 17:31:03 17:34:15 17:37:26 17:40:38 17:43:48 17:47:00 17:50:10 17:53:22 17:56:33 17:59:45 18:02:55 18:06:05 18:09:14 18:12:24 18:15:32 18:18:41 18:21:49 18:24:58 18:28:07 18:31:16 18:34:24 18:37:33 18:40:41 18:43:49 18:46:56 18:50:05 18:53:12 18:56:21 18:59:28 19:02:37 19:05:44 19:08:53 19:12:00 19:15:09 19:18:16 19:21:25 19:24:32 19:27:41 19:30:49 19:33:58 19:37:06 19:40:16 19:43:24 1947 0 CL 19:50:53 1955 15CL 19:59:27 20:02:57 20:06:05 20:09:15 20:12:23 20:15:32 20:18:42 20:21:51 20:25:00 20:28:10 20:31:18 20:34:28 20:37:36 20:40:46 20:43:54 20:47:03 20:50:11 20:53:21 20:56:29 20:59:38 21:02:46 21:05:56 21:09:04 21:12:13 21:15:21 21:18:30 21:21:38 21:24:49 21:27:57 21:31:07 21:34:15 21:37:25 21:40:35 21:43:44 21:46:52 21:50:02 21:53:11 21:56:20 21:59:28 22:02:37 22:05:44 22:08:53 22:12:01 0 ERRORS OK