Dear Collaborators,

The level of solar activity is moderate. Target region NOAA 13645 maintained spot area and number of spots since the last message, remaining classified as a beta-gamma/D-type sunspot group. This region was the source of several high C-class flares and an M2.9 flare on 23-Apr-2024 at 17:33 UT. The largest magnitude flare in the period was an M3.6 on 23-Apr-2024 at 03:06 UT that came from NOAA 13654 (a beta/C-type group), the same region that produced an M3.0 on 23-Apr-2024 at 08:07 UT. The default target switches to NOAA 13654 because this region seems to be emerging new flux. More low-to-mid M-class flares are likely in the next 24 hours, with a chance for a >M5 flare.

The position of NOAA 13654 on 23-Apr-2024 at 19:30 UT is:

S09E33 , ( -514", -82" )

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,

Shaun Bloomfield (Northumbria University)