17 December 2021
20211216 Week Rotation Today Rotation Week 20211218

Dear Collaborators,
The largest event in the past 24 hours was an M1.2 flare at 12/17/00:39 UT, produced by a newly emerged region NOAA 12911 which has a beta/C-type configuration. 12911 also produced about seven C-class flares during the period. Today the target will switch to this region. Yesterday's target NOAA 12907 retains its beta-gamma/D-type configuration but only produced several B-class flares. More C-class flares are expected from the target region 12911 and other regions (12907-12909), with a chance of an additional M-class flare in the next few days. The position of NOAA 12911 on December 17 at 04:30 UT is: N19E67 (-849", 325") 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)