Dear Collaborators,
Solar activity has increased to a moderate level. Three regions produced >C5 flares since the last message. NOAA 13828 (S11W55, alpha/H-type) produced the largest event - an M1.3 flare at 22:57 UT yesterday. An unnumbered region near the South East limb (S12E82) was also the source of a C5.2 flare at 11:50 UT today. NOAA 13836 produced a long-duration C9.6 flare at 14:41 UT yesterday. It retains a beta-gamma/D-type magnetic configuration and became the most productive region. Today's target region shall switch to 13836 because of its high magnetic complexity and flaring productivity. Yesterday’s target region NOAA 13835 (S22E17, beta-gamma/D-type) has been flare quiet in the period. Further C-class activities are expected, with another low-M flare probable in the following 24-48 hours.
The position of NOAA 13836 on 26-Sep-2024 at 11:30 UT is:
S10E38 (-582", -255")
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,
Qiao Li (Purple Mountain Observatory)