Dear Collaborators,
Solar activity has remained at low levels since the last message. The largest events during the period were two C3.4 flares, at 23:22 UT yesterday from NOAA 14528 (S11E31, alpha/H-type) and at 08:48 UT today from NOAA 14524 (N13W07, alpha/H-type). The latter event also involved the target region NOAA 14530 (N19W01, beta/D-type), with bright coronal loops between the two regions. NOAA 14528 produced additional low C-class flares, while NOAA 14521 (N09W47, alpha/H-type) produced several C-class flares, including a C3.2. Today, we will continue to watch NOAA 14530 as the target region due to its increasing sunspot area and its magnetic connectivity with NOAA 14524. If possible, please also include NOAA 14524 in the field of view. Further C-class activity is expected, with only a slight chance of an isolated low M-class flare in the next 24 hours.
The position of NOAA 14530 on September 9 at 11:30 UT is:
N19W01 (15", 194")
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,
De-Chao Song (Purple Mountain Observatory)
mmmotd@solar.physics.montana.edu