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Dear Collaborators,
Solar activity continues at a low level. The largest event since the last message was a C3.5 flare at 08:35 UT today, associated with a filament eruption near the regions of NOAA 13555 and 13557. Yesterday's target NOAA 13553 has been flare quiet. Today the target will switch to NOAA 13559 as mentioned in the previous message. 13559 retains a beta/D-type configuration but increases in the sunspot area and number of spots. It produced a C1.7 and three high B-class flares (B8.5, B9.6, and B9.6). There are also a few ~C1 flares produced by some other regions. Additional C-class activities are expected in the next 24 hours. The position of NOAA 13559 on January 20 at 12:30 UT is: N26E39 (-552", 486") See http://www.SolarMonitor.org for images and http://solar.physics.montana.edu/max_millennium/ops/observing.shtml for a description of the current Max Millennium Observing Plan. Regards, Ying Li (Purple Mountain Observatory)
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