----------------------------------------------------------------------------- Mauna Loa Solar Observatory Observer's Log ----------------------------------------------------------------------------- Tue May 12 16:42:01 GMT 2026 Year:26 Doy:132 Observer: mcotter Weather COMMENT BY mcotter: Tue May 12 16:45:53 GMT 2026 MLO Current Weather Timestamp (UTC): 2026-05-12 16:38:00 Temperature : 48.29 deg F Dew Point : -1.37 deg F Pressure : 678.69 mbar Wind Speed : 11.41 mph Wind Direction : 152.6 deg Skies: Overhead skies are clear with some scattered Cirrostratus clouds low on the horizon. A brown gray inversion layer is visible on the horizon above 10,000' elevation. The sky appears to be a bit bright in the East at this time. ___end___ ** KCOR PROBLEM REPORTED BY mcotter ** : Tue May 12 18:15:57 GMT 2026 kCOR. When we started the focus routine we received error messages which did not allow the cameras to do anything. It appeared that another application was communicating with the cameras and holding the communication port not allowing us to continue communicating with the cameras. We checked all cable connections at the back of the computer and verified the power supplies for the cameras to ensure that they were receiving appropriate power. Eventually the error seemed to correct itself and we were able to run the focus routine as usual and continue on to observing. ___end___ KCOR COMMENT BY mcotter: Tue May 12 18:16:21 GMT 2026 Kcor. Kcor instrument now observing. ___end___ Solar Event COMMENT BY mcotter: Tue May 12 18:30:05 GMT 2026 Observed Prominence. Approximate Solar PA: 283 Deg Height: 1.33 Radii ___end___ Weather COMMENT BY mcotter: Tue May 12 18:58:24 GMT 2026 MLO Current Weather Timestamp (UTC): 2026-05-12 18:35:00 Temperature : 54.05 deg F Dew Point : 11.12 deg F Pressure : 679.6 mbar Wind Speed : 8.95 mph Wind Direction : 9.2 deg Skies: Skies are beautifully clear but aerosols are increasing and are becoming prevalent in the NRGF images. ___end___ GENERAL COMMENT BY mcotter: Tue May 12 19:00:18 GMT 2026 Rebecca has arrived onsite. ___end___ BY mcotter: Tue May 12 19:19:03 GMT 2026 Jay Paulk has arrived onsite. ___end___ Tue May 12 20:07:28 GMT 2026 KCOR Start Calibration script: c:\kcor\mlso-calibration22deg-20171025.ini Tue May 12 20:22:42 GMT 2026 KCOR End Calibration Script ** GENERAL PROBLEM REPORTED BY mcotter ** : Tue May 12 21:28:36 GMT 2026 Internet down: The internet dropped out for a moderate period of time (the drop out began at approximately 20:43 UT). We are not entirely sure of the duration of the outage (we believe it was out for approximately 45 minutes), but the issue was a problem inside the NOAA building that transmits signal to the MLSO. ___end___ Weather COMMENT BY mcotter: Tue May 12 21:33:43 GMT 2026 MLO Current Weather Timestamp (UTC): 2026-05-12 21:26:00 Temperature : 55.33 deg F Dew Point : 36.33 deg F Pressure : 679.64 mbar Wind Speed : 6.71 mph Wind Direction : 332.1 deg Skies: The skies are getting very bright and a long trail of high Cirrus is coming from the West into the observing area. ___end___ KCOR COMMENT BY mcotter: Tue May 12 21:35:38 GMT 2026 Kcor: The sky has become very bright and the Synoptic Images have become a bit saturated. The Kcor Instrument has been stopped at this time. ___end___ Weather COMMENT BY mcotter: Tue May 12 21:40:40 GMT 2026 Orographic clouds are increasing in the Saddle Valley and on the West slope of Maunaloa at this time. There are long trails of Cirrus and Cirrostratus clouds coming in from the West and the South moving in a Northeasterly direction. ___end___ KCOR COMMENT BY KCOR: Wed May 13 00:05:05 GMT 2026 KCOR file transfer report KCor created 835 .bin files 833 .fts files NOTICE ? 2 .bin file(s) with no matching .fts: 20260512_213352_kcor.bin 20260512_225206_kcor.bin WARNING 2 fts file(s) found locally that was not transfered dawn ACTION must be taken to copy: 20260512_225135_kcor.fts 20260512_225150_kcor.fts ___end___ Logger COMMENT BY mcotter: Wed May 13 00:06:45 GMT 2026 Log closed ONSITE STAFF: berkey, mcotter, Rebecca Ulaszek, Jay Paulk ___end___