Dear Collaborators,
Numerous B-class flares were produced by various regions (12907, 12908, 12911) and the largest event, a C6.3 at 12/18/17:27 UT, was from a limb region (S19E89). The target region NOAA 12911 retains its beta/C-type configuration and we will watch this region for one more day. B-class activities are expected and additional C-class flares are probable, with a slight chance of a low M-class event in the next 24 hours.
The position of NOAA 12911 on December 19 at 04:30 UT is:
N20E36 (-540", 353")
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)