Dear Collaborators,
Solar activity continues at a very low level. The largest event since the last message was a C2.6 flare at 15:17 UT on September 19 produced by the target region NOAA 13825. 13825 retains a beta-gamma-delta/E-type configuration but increases in the spot area and number of spots. Please note that another region NOAA 13824 (S04W85, beta/E-type) was the source of five C1/C2 flares in the period, which is rotating over the west limb. Only C-class activities are expected in the next 24 hours.
The position of NOAA 13825 on September 20 at 03:30 UT is:
S16W23 (360", -367")
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)