MMmotd September 2026

mmmotd@solar.physics.montana.edu

1 participants
30 discussions

MM#009 Default Target
by Max Millennium Chief Observer 30 Sep '26

30 Sep '26

Dear Collaborators, Solar activity has been at a low level since the last message. The target region, NOAA 14535 produced a C8.6 flare at 2:30 UT today (9/30), which is the largest event in the period, but somewhat settled since then. There are a number of high-B to low-C class activities reported from behind the East limb at the latitude ~10 degree North. The EUV loops above this area show rapid variation, but currently we only see a plage close to the Northeast limb. Today the target remains at NOAA 14535, on the area of polarity inversion, expecting additional C class events. The position of the target in NOAA 14535 on 30-September-2026 at 16:00 UT is: N11W52 (745", 127"). 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 29 Sep '26

29 Sep '26

Dear Collaborators, Solar activity has slightly increased but still been at a low level. The largest event since the last message was a C2.5 flare at 15:05 UT yesterday (9/28) from the West limb produced by NOAA 14536. This region additionally produced two C1 class and a few B class flares, but now has completely rotated behind the limb. A few near-C class events were reported from the Northeast limb but the attributed region is not visible yet from us. Yesterday's target, NOAA 14535 reduced its area, showing only B class activity, but was re-classified as a beta-gamma type. Today NOAA 14535 remains the target, expecting high-B to low-C activities. The position of the target in NOAA 14535 on 29-September-2026 at 16:00 UT is: N11W39 (601", 98"). 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 28 Sep '26

28 Sep '26

Dear Collaborators, Solar activity continues to be low since the last message. Two low-C class flares (C1.2 at 15:54 UT and C1.3 at 18.58 UT both on yesterday, 9/27) were reported from NOAA 14535 located at N11W15. A cluster of active regions (NOAA 14534, 14536 and 14538) produced several B-class flares but has almost moved out of the view from Earth. NOAA 14535 is currently the region with the highest magnetic concentration on the disk, although showing no flare activity during the recent 20 hours. Today we will switch the default target to NOAA 14535 and observe the area of its polarity inversion. Activities of low-C class are expected. The position of the target in NOAA 14535 on 28-September-2026 at 16:00 UT is: N11W26 (423", 85"). 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 27 Sep '26

27 Sep '26

Dear Collaborators, Solar activity is at a low level. Several flares have been produced since the last message, the largest being a C3.1 from NOAA 14534 at 16:50 UT yesterday. The target region cluster is transiting the northwestern limb with some extremities of the constituent regions remaining in view. Meanwhile, NOAA 14536 has developed into a beta-gamma region but is yet to produce significant activity. NOAA 14534 and the surrounding ARs will remain the target region for what may be the final 24 hours before moving out of view entirely. Further B-class and low C-class activity is expected. The approximate position of NOAA 14534 on 27-Sep-2026 at 00:30 UT is: N10W90, (945", 167") 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, Harry Greatorex (Queen's University Belfast)

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

26 Sep '26

Dear Collaborators, Solar activity continues at a low level. A small number of flares were produced since the last message, the largest being a C1.2 from NOAA 14534 at 18:20 UT yesterday. This region and the surrounding cluster are now positioned on the northwestern limb and will begin to transit out of view in the next 24-48 hours as they further progress. Elsewhere on the disk there is little activity. NOAA 145434 will continue as the target region as it remains in view, further low C-class activity and B-class activity is likely. The approximate position of NOAA 14534 on 26-Sep-2026 at 00:30 UT is: N10W76, (920", 167") 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, Harry Greatorex (Queen's University Belfast)

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

25 Sep '26

Dear Collaborators, Solar activity remains low. A small number of flares were produced since the last message, the largest being a C1.5 from NOAA 14535 at 08:52 UT today. The clustered target region is now progressing onto the northwestern limb and will transit beyond view within the next few days. The region still shows some activity, however NOAA 14536 has produced the most flares in the last 24 hours and has developed into a beta-delta type region. This region is within reasonable proximity to the NOAA 14534 and the surrounding regions. The cluster about NOAA 14534 will remain as the target region for now, however attention should also be paid to NOAA 15436 over the next 24 hours. Further B-class and low C-class activity is expected. The approximate position of NOAA 14534 on 25-Sep-2026 at 00:30 UT is: N12W61, (836", 200") 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, Harry Greatorex (Queen's University Belfast)

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MM#009 Default Target
by Max Millennium Chief Observer 24 Sep '26

24 Sep '26

Dear Collaborators, Solar activity remains at a low level. Several flares were produced since the last message, the largest being a C1.7 from NOAA 14537 at 11:14 UT yesterday. The target region and the surrounding ARs are progressing towards the northwestern limb and appear to show signs of emerging flux despite the low levels of activity across the disk. This cluster will remain the target region centred around NOAA 14534. Further low C-class and B-class activity is anticipated for the next 24 hours. The position of NOAA 14534 on 24-Sep-2026 at 07:30 UT is: N11W52, (741", 110") 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, Harry Greatorex (Queen's University Belfast)

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MM#009 Default Target
by Max Millennium Chief Observer 23 Sep '26

23 Sep '26

Dear Collaborators, Solar activity persists at a low level. The largest flare produced in the last 24 hours was a C2.4 from NOAA 14534 at 17:11 UT yesterday. NOAA 14535 has produced four flares since the last message but its development appears to have stagnated. Several regions are clustered in the northwestern portion of the limb about NOAA 14534, and as such this region may see further activity. The target region will switch to NOAA 14534 and the surrounding regions for the next 24 hours. Further B-class and low C-class activity is expected. The position of NOAA 14534 on 23-Sep-2026 at 03:30 UT is: N11W37, (566", 89") 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, Harry Greatorex (Queen's University Belfast)

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

22 Sep '26

Dear Collaborators, Solar activity remains at a low level. Only a small number of flares were produced since the last message, the largest was a C2.0 from NOAA 14536 at 04:27 UT today. The target region has moved further onto the disk and still appears to show the greatest evidence of emerging flux of the visible regions. Despite this, general activity levels are expected to remain low, further B-class and low C-class activity is likely in the next 24 hours. The position of NOAA 14535 on 22-Sep-2026 at 07:30 UT is: N12E54, (-758", 129") 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, Harry Greatorex (Queen's University Belfast)

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MM#009 Default Target
by Max Millennium Chief Observer 21 Sep '26

21 Sep '26

Dear Collaborators, Solar activity is at a low level. Several flares have been produced since the last message, the largest being a C3.7 from NOAA 14534 at 22:25 UT yesterday. The target region is now numbered as NOAA 14535 and despite remaining relatively quiet since the last message, this region appears to show moderate signs of emerging flux as it progresses further onto the solar disk. NOAA 14535 will remain the target region, further B and low C-class activity is expected in the next 24 hours. The position of NOAA 14535 on 21-Sep-2026 at 07:30 UT is: N12E69, (-873", 156") 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, Harry Greatorex (Queen's University Belfast)

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