MM#003 Major Flare Watch
Dear RHESSI Collaborators,
NOAA 1618 has developed rapidly increasing its sunspot
count, sunspot area, and magnetic complexity. 1618 is currently
a large E-type/beta-gamma sunspot group with a magnetic delta
configuration located within its central portion. 1618 was the source
of 3 M-class events since the last message. The largest was an
M3.5 at 11/21/15:30 UT. At this time we are implementing Max
Millennium coordinated observing plan #003 (Region Likely To Produce
A Major Flare). A major flare =/>M5 is possible in the next 24 to 48
hours. There is a slight chance of an X-class event as well if 1618
continues in strong growth phase.
The position of NOAA 1618 on November 21 at 14:00 UT is: