Dear Collaborators,

Solar activity has increased significantly since the last message. A southeast limb region just produced an X1.3 flare at 09:31 UT today. This limb region also produced an M1.9 flare and five C-class flares during the period. At this time, we are implementing a Major Flare Watch campaign on this limb region which is rotating onto the visible disk. Yesterday's target region NOAA 13814 produced two low M-class flares (M1.8 and M2.0) and retains a beta-gamma- delta/D-type configuration. Also note that NOAA 13811 (S13W82, beta/D-type) was the source of four low M-class flares as well as an M5.0 flare at 23:49 UT yesterday. Low M-class flares are expected from various regions with a good chance of a major flare (>M5) in the next 24-48 hours.

The approximate position of the target on September 12 at 09:30 UT is:

S16E87 (-920", -280")

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,

Ying Li (Purple Mountain Observatory)