Dear Collaborators,

Solar activity has reached an intermediate level since the last message. The largest event in the period was an M2.5 flare at 01:10 UT today produced by the target region that has been numbered as NOAA 13451 (N14E56). 13451 is now classified as a beta-delta/D-type sunspot region and produced another M1.2 plus eleven C-class flares in the period. Today the target shall still be this region. Additionally, NOAA 13445 (S14W83, alpha/H-type) also produced two C9 and one C4 flares during its approach to the South West limb. More C-class flares are expected in the following 24-hour period, with a good chance for further low M-class flares.

The position of NOAA 13451 on 1-Oct-2023 at 07:30 UT is:

N14E56 (-772" , 169")

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)