Dear Collaborators,

Solar activity is at a low level. The largest event since the last message was a C2.6 flare at 10:31 UT today from the target region NOAA 13435. 13435 retained its beta/D-type configuration and produced another three C1-class flares in the period. NOAA 13435 shall continue as the target region. Please note that an active region (unnumbered yet) to the east of 13435 underwent negative flux emergence in its southern portion. If possible, please also include this region in your field of view. Besides, two limb regions (NOAA 13425 and 13430) produced three C1-class flares as well. Additional C-class activities are expected over the next 24 hours.

The position of NOAA 13435 on 18-Sep-2023 at 11:30 UT is:

N10E53 ( -752" , 94" )

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)