Dear Collaborators,
Yesterday's target region NOAA 12772 only produced an A2.1 flare in the past 24 hours. This region has been classified as a beta/B-type configuration, slightly decreasing in the sunspot area and number of spots. Today the target will switch to a plage region in the southeast quadrant, which was the source of several A-class events as well as a B1.6 flare (at 01:58 UT today). Further A-class activities are possible with a chance of a B-class event in the next 24 hours.
The approximate position of the target on August 21 at 11:00 UT is:
S31E48 (-590", -520")
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)
mmmotd@solar.physics.montana.edu