Dear RHESSI Collaborators,
NOAA 11543 has decreased in number of spots as it rotates towards the NW limb, with an associated decrease in complexity to an alpha/H-type sunspot classification. A limb-occulted C4.7 flare on 17-Aug-2012 at 08:29 UT occurred on the NE limb. The beyond-limb source might be the return of the region previously designated NOAA 11528, which produced low-to-moderate C-class flares on its last disk passage. More C-class activity is possible in the next 24 hours.
The approximate position of this region on 17-Aug-2012 at 11:00 UT is:
N20E90, ( -890", 322" )
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)