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Dear Collaborators,
The level of solar activity is moderate. Target region NOAA 13637 has remained stable since the last message, continuing to be classed as a beta/C-type sunspot group. The North East limb region that was a prior target for the #MM003 Major flare Watch has now been designated as NOAA 13639 and classed as a beta/C-type sunspot group, although its analysis before the start of the UT day will be affected by limb foreshortening. NOAA 13639 was again the most flare-productive region in the period by generating several C-class flares and three M-class flares, the largest being an M1.7 on 15-Apr-2024 at 01:06 UT. The overall greatest magnitude flare was an M2.3 on 15-Apr-2024 at 08:38 UT from NOAA 13634 (a beta/D- type sunspot group). At this point the MM#003 Major Flare Watch target switches back to NOAA 13639 due to its greater flaring frequency. More low M-class flares are probable in the next 24 hours, with a chance for a >M5 flare. The position of NOAA 13639 on 15-Apr-2024 at 13:00 UT is: N29E55 , ( -687", 509" ) 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, Shaun Bloomfield (Northumbria University)
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