Dear Collaborators,

The level of solar activity has slightly decreased since the last message. The largest event was an M4.3 flare at 16:36 UT on 23-Jan-2024 from NOAA 13561. It was the most productive region and the source of multiple low-M flares. 13561 has increased in magnetic complexity to be a beta-gamma/D-type sunspot group, with signs of shearing and additional flux emergence. Today the Major Flare Watch shall switch to NOAA 13561. Yesterday’s target NOAA 13559 only produced a few C-class flares. Further C-class activities are expected over the following 24-48 hours, with a chance of an above M5 flare.

The position of NOAA 13561 on 24-Jan-2024 at 08:30 UT is:

S17W47 (683", -224")

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,

Qiao Li (Purple Mountain Observatory)