Dear Collaborators,
Solar activity has been at intermediate levels since the last message. The largest event in the period was an M1.3 flare at 08:58 UT today from a newly numbered region NOAA 13450 (S18E59, beta/C-type) that recently rotated on disk over the South East limb. 13450 was the most flare-productive region, which also produced six C-class flares in the period. Yesterday's target region NOAA 13445 (S13W44, beta/D-type) was quiescent in the past 24 hours. Today the target region shall switch from NOAA 13445 to NOAA 13450. Additional C-class flares are expected over the next 24 hours, with a chance for low M-class flares.
The position of NOAA 13450 on 28-Sep-2023 at 11:30 UT is:
S18E59 (-781" , -350")
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)