MM#003 Major Flare Watch

Dear RHESSI Collaborators,

NOAA 1515 has completed west limb passage. It was the source of a few minor events yesterday. The new target is NOAA 1520. 1520 is a very large region with a complex F-type/beta-gamma-delta sunspot group. Its H-alpha plage is displaying bright flare points and dark surges. Previously somewhat quiescent, 1520 produced 3 M-class events in the past 24 hour period. The largest was an M2.0 at 07/10/06:27. Additional low-level M-class events expected with a major =/>M5  event possible in the next 24 hour period.

The position of NOAA 1520 on July 10 at 15:00 UT is: S17E24 (Solar X = -368", Solar Y = -332")

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,

Bill Marquette (Helio Research) Received on Tue Jul 10 2012 - 10:52:05 MDT