Dear Collaborators,
Solar activity has diminished over the past 24 hours. The largest event in the period was an M1.0 flare at 14:51 UT yesterday produced by NOAA 13443 (N28W75, beta-gamma/E-type). Target region NOAA 13445 (S14W02) has grown slightly in spot area and increased in magnetic complexity since the last message, which has been classified as a beta-delta/D-type sunspot group. It remained the most flare-productive region with being the source of twelve C-class flares. NOAA 13445 shall continue as the target region, although we are ending the Major Flare Watch at this time. If possible, please also include a newly emerged region (S22E18) near the target in the field of view. This region has just produced a C9.9 flare and is still experiencing the emergence of new magnetic fluxes. Additional C-class flares are expected over the following 24-hour period, with a chance for low M-class flares.
The position of NOAA 13445 on 25-Sep-2023 at 11:30 UT is:
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,
De-Chao Song (Purple Mountain Observatory)