MMmotd August 2026

mmmotd@solar.physics.montana.edu

1 participants
29 discussions

MM#009 Default Target
by Max Millennium Chief Observer 28 Aug '26

28 Aug '26

Dear Collaborators, Solar activity has been at a very low level. The target region NOAA 14513 only produced a C1.1 flare at 04:12 UT today, plus three high B-class flares. 14513 has been reclassified as a complex beta-gamma-delta configuration but it continues to decrease in the sunspot area and number of spots. Additional C-class activity is expected in the following 24-hour period. The position of NOAA 14513 on August 28 at 07:30 UT is: N04W33 (517", -32") See http://www.SolarMonitor.org <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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MM#009 Default Target
by Max Millennium Chief Observer 27 Aug '26

27 Aug '26

Dear Collaborators, Solar activity has dropped over the past 24 hours. The target region NOAA 14513 only produced an M1.0 flare at 12:06 UT yesterday, plus five C-class flares. 14523 has been downgraded to a beta-gamma/D-type region, decreasing in the sunspot area and number of spots. Today we will end the Major Flare Watch campaign but continue to watch NOAA 14513. C-class activity is expected with some chance of low M-class flare in the next 24 hours. The position of NOAA 14513 on August 27 at 07:30 UT is: N04W21 (340", -43") See http://www.SolarMonitor.org <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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MM#003 Major Flare Watch
by Max Millennium Chief Observer 26 Aug '26

26 Aug '26

Dear Collaborators, After the M6.9 flare yesterday, the target region NOAA 14513 produced an M2.2 flare at 06:29 UT today, plus two ~C1.5 flares. 14513 retains a beta-gamma-delta/E-type region and increases the sunspot area. Today we will continue the Major Flare campaign. Additional low M-class activity is expected with some chance of another major flare above M5 in the following days. The position of NOAA 14513 on August 26 at 07:30 UT is: N04W08 (132", -49") See http://www.SolarMonitor.org <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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MM#003 Major Flare Watch
by Max Millennium Chief Observer 25 Aug '26

25 Aug '26

Dear Collaborators, Following the 4 low-M class events reposted in the previous message, an M6.9 flare was produced at 9:32 UT today (8/25) from the target region, NOAA 14513. An SolarSoft movie of this event is available at https://www.lmsal.com/solarsoft/archive/sdo/media/ssw/ssw_client/data/ssw_s… At this time, we will implement the Major Flare Watch campaign on NOAA 14513. The area of leading sunspots is forming a sharp boundary of opposite polarity magnetic field patches, which is the main source of a series of M class events. Further flare activities of M class or larger are expected in the next 24 hours. The position of the target in NOAA 14513 on 25-August-2026 at 15:30 UT is: N03E28 (-35", -59"). 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, Aki Takeda (Montana State University) --

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MM#009 Default Target
by Max Millennium Chief Observer 25 Aug '26

25 Aug '26

Dear Collaborators, Solar activity has increased since the last message. The target region NOAA 14513 was the source of four low M-class flares, the largest one being an M2.0 at 08/25/01:04 UT, eight low C-class, and two high B-class flares during the period. 14513 has been reclassified as a beta-gamma- delta/E-type region. Further low M-class activity is expected in the coming 24 hours. The position of NOAA 14513 on August 25 at 07:30 UT is: N04E06 (-99",-49") See http://www.SolarMonitor.org <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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MM#009 Default Target
by Max Millennium Chief Observer 24 Aug '26

24 Aug '26

Dear Collaborators, Solar activity continues at a low level. The largest event since the last message was a C3.5 flare at 08/23/21:47 UT, produced by the target region NOAA 14513. 14513 also produced another three low C-class flares plus one B9.3 flare. It has been designated as a beta-gamma/E-type configuration, but increasing in the sunspot area and number of spots. Today we will continue to watch this region. Further C-class activity is expected in the next 24 hours. The position of NOAA 14513 on August 24 at 07:30 UT is: N04E21 (-340", -42") See http://www.SolarMonitor.org <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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MM#009 Default Target
by Max Millennium Chief Observer 23 Aug '26

23 Aug '26

Dear Collaborators, Solar activity has been at a low level since the last message. The largest event in the last 24 hours was a C4.2 flare at 6:24 UT today (8/23) produced by the target region, NOAA 14513. This region also produced a few low-C class flares in the last 24 hours. All these flares were initiated around the main leading sunspot with positive polarity, but slightly different locations that are connected with different nearby patches of negative polarity. Today, we will continue to observe NOAA 14513, at the central portion of the two leading sunspots with different polarities, the source of the C4.2 flare. The position of the target in NOAA 14513 on 23-August-2026 at 15:30 UT is: N03E28 (-455", -50"). 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, Aki Takeda (Montana State University) --

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MM#009 Default Target
by Max Millennium Chief Observer 22 Aug '26

22 Aug '26

Dear Collaborators, Solar activity has significantly reduced since the last message. The largest event in the last 24 hours was a C4.0 flare at 20:45 UT yesterday (8/21) produced by the target region, NOAA 14513. This region also produced a few low-C class flares and was reclassified as a beta-gamma-delta type, but is showing a sign of decay undergoing fragmentation. Today we will end the Major Flare Watch campaign on NOAA 14513, but continue to observe the central area of NOAA 14513 as the default target. Additional C class events are expected. The position of the target in NOAA 14513 on 22-August-2026 at 16:00 UT is: N03E43 (-647", -32"). 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, Aki Takeda (Montana State University) --

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MM#003 Major Flare Watch
by Max Millennium Chief Observer 21 Aug '26

21 Aug '26

Dear Collaborators, Solar activity remains high since the last message. The largest event in the last 24 hours was an M2.9 flare at 15:52 UT yesterday (8/20) produced by the target region, NOAA 14513, from the area of leading sunspots. The second largest was an M1.7 long duration event over the West limb (started 9:09 UT today still ongoing) produced by NOAA 14507. NOAA 14513 produced more than 10 C class flares and larger in the last 24 hours. Although yesterday's M8.1 event was erupted from the area of its trailing sunspots, many of later flares are being produced in the area of leading sunspots. Today we will continue our Major Flare Watch campaign on NOAA 14513, but the target will move to the central portion where two sunspots of opposite polarities are located side-by-side. Additional C to M class activities are expected with a chance of an event larger than M5. The position of the target in NOAA 14513 on 21-August-2026 at 15:30 UT is: N02E55 (-779", -16"). 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, Aki Takeda (Montana State University) --

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MM#003 Major Flare Watch
by Max Millennium Chief Observer 20 Aug '26

20 Aug '26

Dear Collaborators, Solar activity has elevated to a high level since the last message due to the activities from the Northeast limb. The region rotated from the Northeast limb was assigned the number, NOAA 14513. This region produced more than 10 flares above C class in the past 24 hours including 3 M class events. While the first two M-class flares (M1.0 at 18:24 UT on 8/19 and M1.9 at 7:31 UT on 8/20) were originated from the leading sunspots, the third event (M8.3 at 11:31 UT today) erupted from the trailing portion closer to the limb. Yesterday's target, NOAA 14507, retains the magnetic configuration of a beta-gamma-delta type and produced several C class events. The largest was a C6.1 at 12:33 UT, but will undergo limb transit in the next 24 hours. Today we will switch the target to NOAA 14513 to implement the Major Flare Watch campaign on this region. The target will be the area of trailing sunspots where the M8.3 event was initiated. Additional C to M class events are expected in the next 24 hours with the chance of an event larger than M5. The position of the target in NOAA 14513 on 20-August-2026 at 16:00 UT is: N04E75 (-915", 45"). 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, Aki Takeda (Montana State University) --

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MMmotd August 2026