Dear Collaborators,
Solar activity has continued at a moderate level in the past 24 hours. The largest event since the last message was an M3.6 flare at 07:24 UT today produced by NOAA 13753 (beta/D-type, N12W29), a newly-emerged region. NOAA 13744 (beta/C-type, N16W08) also produced an M1.4 flare and a C7.3 flare but it shows signs of decay. NOAA 13751 became the most productive region in the period and produced four high C-class flares including the largest magnitude being a C9.4 flare at 22:23 UT yesterday. This region has been classified as a beta-gamma/D-type magnetic configuration, with new negative magnetic fluxes emerging in its following portion. It also shows a high and increasing current helicity. Today the Major Flare Watch region will switch to NOAA 13751 from NOAA 13738. Yesterday’s target (13738) was flare-quiet in the period. Further C-class flares are expected with additional low-M activity probable in the following 24 hours from various active regions.
The position of NOAA 13751 at 11:30 UT on 16-Jul-2024 is:
S08E47 (-685", -181")
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)
mmmotd@solar.physics.montana.edu