----------------------------------------------------------------------------- Mauna Loa Solar Observatory Observer's Log ----------------------------------------------------------------------------- Mon Aug 10 16:45:08 GMT 2026 Year:26 Doy:222 Observer: mcotter Weather COMMENT BY mcotter: Mon Aug 10 16:57:55 GMT 2026 MLSO Current Weather Timestamp (UTC): 2026-08-10 16:53:00 Temperature : 45.69 deg F Dew Point : 32.14 deg F Pressure : 681.5 mbar Wind Speed : 0.67 mph Wind Direction : 194.7 deg Skies: The sky is clear, but it appears a little hazy. The inversion layer is visible on the horizon just at the tip of Hualalai. Little to no wind. ___end___ GENERAL COMMENT BY mcotter: Mon Aug 10 16:58:03 GMT 2026 Dome open ___end___ GENERAL COMMENT BY mcotter: Mon Aug 10 16:58:10 GMT 2026 Opened windows upstairs ___end___ ** KCOR PM mcotter ** : Mon Aug 10 16:58:16 GMT 2026 Blew off Kcor O1 ___end___ Mon Aug 10 17:05:16 GMT 2026 Kcor Focus/alignment program exited. I manually set the focus to 134.5 from 133.1. KCOR BY mcotter: Mon Aug 10 17:10:10 GMT 2026 Kcor: The Sun rises over the dome sill at 7:04 am HST. Kcor now observing. The sky appears a little hazy and bright, but the synoptic images look good. ___end___ KCOR BY mcotter: Mon Aug 10 17:14:15 GMT 2026 Kcor: Aerosols are heavy and can be readily observed in the different images. ___end___ ** KCOR PM mcotter ** : Mon Aug 10 17:43:58 GMT 2026 Blew off Kcor O1: When the NRGF images came up (Level 0 also) there was a faint bullet hole feature at approximately the 12:00 o'clock and 2:00 o'clock area of the corona. Blowing off the O1 a second time seems to have removed this feature. ___end___ ** KCOR PROBLEM REPORTED BY mcotter ** : Mon Aug 10 18:34:56 GMT 2026 entry was edited Kcor circular acquisition error> I caught the error the moment it happened, so I don't believe any any unwanted data got through. The error happened at approximately 18:27:48 UT. ___end___ Weather COMMENT BY mcotter: Mon Aug 10 18:57:36 GMT 2026 MLSO Current Weather Timestamp (UTC): 2026-08-10 18:50:00 Temperature : 51.91 deg F Dew Point : 36.14 deg F Pressure : 682.09 mbar Wind Speed : 4.03 mph Wind Direction : 322.0 deg Skies: The continues to remain mostly clear with just a few small clouds scattered on the southern horizon, Aerosols are extremely high and very prevalent in the images. ___end___ Weather COMMENT BY mcotter: Mon Aug 10 19:12:17 GMT 2026 MLSO Current Weather Timestamp (UTC): 2026-08-10 19:02:00 Temperature : 52.25 deg F Dew Point : 38.6 deg F Pressure : 682.14 mbar Wind Speed : 4.03 mph Wind Direction : 327.9 deg Skies: Orographic clouds are beginning to come over the western slope of Maunaloa. Additionally, clouds have come over the southern slope of Maunaloa and are currently scattered across the eastern sky with some of them entering the viewing area. ___end___ KCOR BY mcotter: Mon Aug 10 19:13:09 GMT 2026 Kcor: Observations have been stopped due to clouds in the viewing area. ___end___ KCOR BY mcotter: Mon Aug 10 19:27:29 GMT 2026 Kcor: Kcor is observing again, but there are clouds in the vicinity of the viewing area so I may end up pausing and restarting observations as conditions change. ___end___ KCOR COMMENT BY KCOR: Mon Aug 10 19:49:40 GMT 2026 KCOR file transfer report KCor created 524 .bin files 520 .fts files NOTICE ? 4 .bin file(s) with no matching .fts: 20260810_182803_kcor.bin 20260810_191027_kcor.bin 20260810_191804_kcor.bin 20260810_192814_kcor.bin Remote site is complete ? no rsync required. ___end___ Weather COMMENT BY mcotter: Mon Aug 10 19:58:43 GMT 2026 MLO Current Weather Timestamp (UTC): 2026-08-10 19:53:00 Temperature : 52.56 deg F Dew Point : 41.23 deg F Pressure : 682.26 mbar Wind Speed : 6.71 mph Wind Direction : 295.2 deg Skies: Clouds have moved in from the west and south and the sky has become mostly overcast. ___end___ GENERAL COMMENT BY mcotter: Mon Aug 10 20:00:47 GMT 2026 The dome windows and dome have been closed due to poor sky conditions. The Kcor and SGS instruments and computers have been powered down and the ILX has been turned off in an effort to reserve battery power. ___end___ Weather COMMENT BY mcotter: Mon Aug 10 21:28:54 GMT 2026 MLSO Current Weather Timestamp (UTC): 2026-08-10 21:23:00 Temperature : 57.09 deg F Dew Point : 40.23 deg F Pressure : 681.97 mbar Wind Speed : 10.74 mph Wind Direction : 55.0 deg Skies: The sky continues to be mostly overcast. The wind has increased considerably from earlier and it is blowing gustily from the northeast. ___end___ BY mcotter: Tue Aug 11 02:18:10 GMT 2026 End Of Day: Some decent observing in the early morning, but clouds came in quickly by mid morning and ended observations. ___end___ Logger COMMENT BY mcotter: Tue Aug 11 02:18:18 GMT 2026 Log closed ONSITE STAFF: berkey, mcotter ___end___