----------------------------------------------------------------------------- Mauna Loa Solar Observatory Observer's Log ----------------------------------------------------------------------------- Sat Aug 29 16:53:56 GMT 2026 Year:26 Doy:241 Observer: mcotter Weather COMMENT BY mcotter: Sat Aug 29 17:18:32 GMT 2026 MLSO Current Weather Timestamp (UTC): 2026-08-29 17:11:00 Temperature : 50.43 deg F Dew Point : 24.21 deg F Pressure : 680.67 mbar Wind Speed : 3.13 mph Wind Direction : 136.1 deg Skies: Clouds, fog and drizzle in the Saddle Valley up to approximately 10,000 elevation. A hazy blue gray inversion layer visible on the horizon just below the peak of Haleakala. Scattered patches of Cirrus clouds across all areas of the sky. Little to now wind at this time. ___end___ GENERAL COMMENT BY mcotter: Sat Aug 29 17:18:43 GMT 2026 Opened windows upstairs ___end___ GENERAL COMMENT BY mcotter: Sat Aug 29 17:18:47 GMT 2026 Dome open ___end___ ** KCOR PM mcotter ** : Sat Aug 29 17:18:52 GMT 2026 Blew off Kcor O1 ___end___ ** Guider/spar PROBLEM REPORTED BY mcotter ** : Sat Aug 29 17:20:27 GMT 2026 The spar initially would not track. After shutting down the SGS program and restarting the computer the spar is now tracking properly. ___end___ KCOR COMMENT BY mcotter: Sat Aug 29 17:22:03 GMT 2026 Kcor: When first starting the Focus routine clouds could be seen in the Focus images. Waiting until clouds pass out of the observing area. ___end___ Sat Aug 29 17:22:21 GMT 2026 Kcor Focus/alignment program exited KCOR COMMENT BY mcotter: Sat Aug 29 17:25:32 GMT 2026 Kcor: The Kcor instrument is now observing. Synoptic images look good. ___end___ ** KCOR PROBLEM REPORTED BY mcotter ** : Sat Aug 29 17:41:53 GMT 2026 Kcor circular acquisition error: I caught it when it happened, so I don't believe much if any data got through. ___end___ Sat Aug 29 17:42:21 GMT 2026 Kcor Focus/alignment program exited KCOR BY mcotter: Sat Aug 29 17:48:02 GMT 2026 Kcor: After running the Auto-Focus routine I manually changed the focus value from 133.3 to 134.5 to see if there is a noticeable difference in the focus when observed in the NRGF images. ___end___ KCOR BY mcotter: Sat Aug 29 17:52:33 GMT 2026 Kcor: A band of Cirrus clouds have entered the observing area: Observations have been paused at this time until the Sun clears the cloud band. ___end___ KCOR COMMENT BY mcotter: Sat Aug 29 18:00:00 GMT 2026 Kcor: I deleted observation file 20260428 to 20260515 from the E Drive to clear up space for current observation data. ___end___ KCOR BY mcotter: Sat Aug 29 18:07:59 GMT 2026 Kcor: A band of Cirrus is still present in the viewing area; waiting for the Sun to rise out of the cloud band. ___end___ Sat Aug 29 18:20:16 GMT 2026 Kcor Focus/alignment program exited KCOR COMMENT BY mcotter: Sat Aug 29 18:23:38 GMT 2026 Kcor: The Sun has risen out of the band of clouds and the instrument is again observing. ___end___ Weather COMMENT BY mcotter: Sat Aug 29 18:52:38 GMT 2026 MLSO Current Weather Timestamp (UTC): 2026-08-29 18:47:00 Temperature : 55.15 deg F Dew Point : 21.25 deg F Pressure : 681.52 mbar Wind Speed : 3.58 mph Wind Direction : 341.1 deg Skies: The sky continues to have scattered patches of Cirrus clouds, but so far there do not appear to be any in the immediate viewing area. Aerosols are beginning to pick up but images continue to look good. ___end___ Sat Aug 29 19:07:18 GMT 2026 Report Time: 19:05:06 UTC Image: 20260829_185800_kcor_l2_nrgf.gif Obs time: 18:58:00 Launch Time: 18:46:07 CME Front Height: 1.74 Rs (front) CME Front Angle: 62.4 East Wing Angle: 56.2 West Wing Angle: 73.5 Angular Width: 17.3 CME Speed: moderate CME Brightness: moderate Confidence: high Sat Aug 29 20:19:03 GMT 2026 KCOR Start Calibration script: c:\kcor\mlso-calibration22deg-20171025.ini Sat Aug 29 20:33:57 GMT 2026 KCOR End Calibration Script Weather COMMENT BY mcotter: Sat Aug 29 21:08:33 GMT 2026 MLSO Current Weather Timestamp (UTC): 2026-08-29 20:59:00 Temperature : 55.27 deg F Dew Point : 41.35 deg F Pressure : 681.84 mbar Wind Speed : 12.08 mph Wind Direction : 344.8 deg Skies: The area of the sky where observations are currently taking place appears clear, though aerosols are continuing to increase an d are quite noticeable in the images. Orographic clouds have come up over the east and west slopes of Maunaloa and are now beginning to encroach on the observatory area. Additionally, patches of Cirrus clouds continue to be scattered across large areas of the sky, particularly in the path of the Sun as it continues to climb to zenith. ___end___ Weather COMMENT BY mcotter: Sat Aug 29 21:57:27 GMT 2026 MLSO Current Weather Timestamp (UTC): 2026-08-29 21:53:00 Temperature : 55.36 deg F Dew Point : 40.73 deg F Pressure : 681.71 mbar Wind Speed : 9.84 mph Wind Direction : 14.2 deg Skies: The Orographic clouds coming in from the east and west have increased substantially and are getting very close to the observatory and observing area. ___end___ KCOR COMMENT BY KCOR: Sun Aug 30 00:41:02 GMT 2026 KCOR file transfer report KCor created 1044 .bin files 1044 .fts files Remote site is complete ? no rsync required. ___end___ Weather COMMENT BY mcotter: Sun Aug 30 00:46:38 GMT 2026 MLSO Current Weather Timestamp (UTC): 2026-08-30 00:41:00 Temperature : 51.62 deg F Dew Point : 47.77 deg F Pressure : 680.88 mbar Wind Speed : 9.4 mph Wind Direction : 15.1 deg Skies: The sky has been completely overcast for a while and there is now a very dense fog rolling through the science area. ___end___ GENERAL BY mcotter: Sun Aug 30 01:28:52 GMT 2026 End Of Day: Good observing early in the day, but clouds moved in late in the morning then conditions got steadily worse. ___end___ Logger COMMENT BY mcotter: Sun Aug 30 01:28:58 GMT 2026 Log closed ONSITE STAFF: mcotter ___end___