Dear RHESSI Collaborators,

Solar activity is at a low level. NOAA 12146 (an alpha/H-type sunspot group) was the only numbered active region that showed signs of growth over the past 24 hours, but was otherwise unremarkable. Meanwhile, the other numbered regions all showed signs of decay. A new region beyond the North East limb produced 2 C-class flares since yesterday's email, including the largest event of the period (a C4.9 flare on 20-Aug-2014 at 12:38 UT). This region is not the return of a previously numbered NOAA region, as STEREO-B EUV imaging indicates it only emerged in the past 2 days. Further C-class activity is possible over the following 24 hours, with a small chance for a low M-class flare.

The approximate position of this region on 20-Aug-2014 at 15:30 UT is:

N11E90, ( -930", 180" )

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 (Trinity College Dublin) Received on Wed Aug 20 2014 - 09:33:27 MDT