Dear Collaborators,
The level of solar activity is low. Target region NOAA 12886 has remained mostly stable, and continues to be classified as an alpha/H-type sunspot group. This region has again remained flare quiet since the last message. A coronal loop system (with some prominence/filament structures present) is visible beyond the South East limb and has been the source of multiple B-class flares, including the largest event of the period - a B8.7 flare on 21-Oct-2021 at 15:02 UT (which may have been foot-point occulted, so actually larger in magnitude). Further B-class activity is expected over the next 24 hours, with a strong chance for C-class flares.
The approximate position of this region on 21-Oct-2021 at 18:00 UT is:
S23E90 , ( -887", -375" )
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,
Shaun Bloomfield (Northumbria University)
mmmotd@solar.physics.montana.edu