MM#009 Default Target

Max Millennium Chief Observer mmchiefobserver at gmail.com
Sun Apr 18 06:34:31 MDT 2021


Dear Collaborators,

The largest event since the last message was a long duration B9.7 flare
at 04/17/16:21 UT produced by a south-east limb region (S21E88). This
limb region has been flare quiet since then. The target region NOAA 12816
was the source of five B-class flares (the largest one being a B4.1) during
the period. 12816 retains its beta/C-type configuration but increases in
current helicity significantly (based on the SHARP data). More B-class flares
are expected with a chance of a C-class event in the next 24 hours.

The position of NOAA 12816 on April 18 at 11:30 UT is:

S24E39 (-550", -324")

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,

Ying Li (Purple Mountain Observatory)


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