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Dear Collaborators,
Solar activity has been at a low level since the last message. The largest event in the past 24 hours was a C6.7 at 05:42 UT yesterday produced by NOAA 13683 (S24W74, beta/D-type), which was associated with a filament eruption. The target region NOAA 13685 retains a beta-gamma/E-type configuration but decreases in the sunspot area. 13685 only produced a C2.2 flare during the period. While the nearby region NOAA 13686 (S06E23, beta/C-type) produced three low C-class flares. At this moment we end the Major Flare Watch campaign, remaining 13685 as the target, but please also include 13686 in your field of view if possible. C-class activities are expected with some chance of an M-class flare in the next 24 hours. The position of NOAA 13685 on May 21 at 03:30 UT is: S12E13 (-209", -167") 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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