Dear Collaborators,
Solar activity has decreased to a moderate-to-low level. The largest event since the last message was a C6.8 flare at 17:58 UT yesterday from NOAA 14202 (S15W12, alpha/H-type). The target region, NOAA 14197 (S18W31), has decayed to a beta-gamma configuration yet produced more than ten low C-class flares during the period, the largest being C4.9 at 03:03 UT today. NOAA 14197 shall remain the target region, due to its activity history and magnetic complexity. In addition, a northeast region NOAA 14207 (N30E51, beta/E-type) produced five low C-class flares in the period. Further C-class activity is expected, with a chance of an isolated M-class flare in the next 24 hours.
The position of NOAA 14197 on 1-Sep-2025 at 11:30 UT is:
S18W31 (467",-389")
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)
mmmotd@solar.physics.montana.edu