Dear Collaborators,

The largest event since the last message was a C1.8 flare at 09/21/11:43 UT produced by NOAA 12873 which had a beta/ D-type magnetic configuration. 12873 also produced another C1.1 flare and four B-class flares. The target region NOAA 12871 was the source of more than ten B-class flares as well as a C1.1 at 09/21/18:18 UT. 12871 has been designated as a Beta-Delta/ D-type region. Further B- and C-class events are expected with a chance of a low M-class flare in the next few days.

The position of NOAA 12871 on September 22 at 03:30 UT is:

S27E34 (-477", -518")

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)