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Mauna Loa Solar Observatory Observer's Log
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Mon Oct 12 16:49:17 GMT 2026
Year:26 Doy:285
Observer: mcotter
Weather COMMENT BY mcotter: Mon Oct 12 16:52:49 GMT 2026
MLSO Current Weather 
Timestamp (UTC): 2026-10-12 16:47:00
Temperature    : 37.79  deg F
Dew Point      : -7.29  deg F
Pressure       : 677.81 mbar
Wind Speed     : 5.14 mph
Wind Direction : 245.8  deg

Skies: Fairly clear skies but very hazy air conditions with a dark blue gray inversion layer visible on the horizon above the level of Haleakala. The air is cold with a steady breeze blowing from the southeast.
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GENERAL COMMENT BY mcotter: Mon Oct 12 17:02:45 GMT 2026
Opened windows upstairs
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GENERAL COMMENT BY mcotter: Mon Oct 12 17:02:50 GMT 2026
Dome open
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** UCOMP PM mcotter ** : Mon Oct 12 17:02:58 GMT 2026
Blew off UCoMP O1
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** KCOR PM mcotter ** : Mon Oct 12 17:03:08 GMT 2026
Blew off Kcor O1
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Mon Oct 12 17:17:06 GMT 2026 Kcor Focus/alignment program exited
KCOR COMMENT BY mcotter: Mon Oct 12 17:19:43 GMT 2026
Kcor:

The Kcor instrument is now observing and the initial synoptic images look very good.
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GENERAL COMMENT BY mcotter: Mon Oct 12 18:57:18 GMT 2026
NOAA Construction Today:

The NOAA Facility construction crew has arrived on site and are beginning their work. Today they will be driving tractors across the lava as they assemble forms and perform back filling of the excavated area where the new NOAA tower and guide wires will be mounted. They informed me that they will be working on site all day, which in the past has meant well into the afternoon.

I asked that one of the crew to please knock on the door and inform me just prior to the work commencing so that I may stop the instrument and close the dome and dome area windows.
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KCOR COMMENT BY mcotter: Mon Oct 12 18:59:22 GMT 2026
Kcor:

Due to NOAA Facility construction commencing soon I am going to run the calibration a little earlier than normally.
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Mon Oct 12 19:00:03 GMT 2026 KCOR Start Calibration script: c:\kcor\mlso-calibration22deg-20171025.ini
Mon Oct 12 19:15:17 GMT 2026 KCOR End Calibration Script
Weather COMMENT BY mcotter: Mon Oct 12 19:43:46 GMT 2026
MLSO Current Weather 
Timestamp (UTC): 2026-10-12 19:38:00
Temperature    : 48.42  deg F
Dew Point      : 16.68  deg F
Pressure       : 679.22 mbar
Wind Speed     : 6.49 mph
Wind Direction : 2.7  deg

Skies: The sky remains clear with the exception of Orographic clouds now present at lower elevations to the east, north and west.
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Weather COMMENT BY mcotter: Mon Oct 12 21:26:34 GMT 2026
MLSO Current Weather 
Timestamp (UTC): 2026-10-12 21:20:00
Temperature    : 47.39  deg F
Dew Point      : 39.87  deg F
Pressure       : 679.54 mbar
Wind Speed     : 4.47 mph
Wind Direction : 294.9  deg

Skies: Orographic clouds have moved in from all directions and the entire sky is now heavily overcast at this time with wisps of fog blowing through the area of the observatory.
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Weather COMMENT BY mcotter: Mon Oct 12 23:36:44 GMT 2026
MLSO Current Weather 
Timestamp (UTC): 2026-10-12 23:32:00
Temperature    : 44.6  deg F
Dew Point      : 43.55  deg F
Pressure       : 678.59 mbar
Wind Speed     : 11.41 mph
Wind Direction : 357.4  deg

Skies: The sky is completely overcast with heavy dense fog present at the observatory area.
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  BY mcotter: Mon Oct 12 23:39:51 GMT 2026
End Of Day:

Clear sky conditions this morning provided for good observing until NOAA Facility construction began in the mid morning, at which time the dome needed to be closed and observations halted.
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Logger COMMENT BY mcotter: Mon Oct 12 23:39:52 GMT 2026
Log closed
ONSITE STAFF: mcotter
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