MMmotd

mmmotd@solar.physics.montana.edu

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MM#009 Default Target
by Max Millennium Chief Observer 04 Sep '26

04 Sep '26

Dear Collaborators, Solar activity has remained at a moderate level since the last message. The largest event during the period was an M1.2 flare at 07:45 UT today from the target region NOAA 14524 (N12E59, alpha/H-type). 14524 also produced seven C-class flares during the period, including C7.9 and C7.1 flares, and showed an increase in sunspot area. NOAA 14523 (N10E29, beta/C-type) produced three C-class flares, including a C6.9. Today, we will continue to watch NOAA 14524 as the target region. Further C-class activity is expected, with a chance of additional low M-class activity in the next 24 hours. The position of NOAA 14524 on September 4 at 11:30 UT is: N12E59 (-799", 136") 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, De-Chao Song (Purple Mountain Observatory)

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MM#009 Default Target
by Max Millennium Chief Observer 03 Sep '26

03 Sep '26

Dear Collaborators, Solar activity has reached moderate levels since the last message. The largest event during the period was an M3.0 flare at 18:57 UT yesterday from the limb target region, which has now been designated NOAA 14524 (N12E71, alpha/H-type). 14524 also produced four additional low C-class flares and several mid-to-high B-class flares during the period. NOAA 14523 (N11E42, beta/C-type) also became active, producing three low C-class flares, together with several mid- B-class flares in the period. Today, we will continue with NOAA 14524 as the target region. Further C-class activity is expected, with a chance of additional low M-class activity in the following 24 hours. The position of NOAA 14524 on September 3 at 11:30 UT is: N12E71 (-880", 158") 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, De-Chao Song (Purple Mountain Observatory)

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MM#009 Default Target
by Max Millennium Chief Observer 02 Sep '26

02 Sep '26

Dear Collaborators, Solar activity has increased slightly since the last message. Yesterday's target region, NOAA 14520 (S12W27, beta/D-type), produced only a B7.9 flare during the period and has decayed noticeably. The largest event in the period was a C5.7 flare at 21:04 UT yesterday from an unnumbered north east limb region (N12E80). This limb region also produced a C1.1 flare and two mid-B-class flares during the period. Today, the target will switch to this north east limb region. Further C- class activity is expected in the following 24 hours. The approximate position of the target region on Sep. 2 at 11:30 UT is: N12E80 (-920", 176") 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, De-Chao Song (Purple Mountain Observatory)

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MM#009 Default Target
by Max Millennium Chief Observer 01 Sep '26

01 Sep '26

Dear Collaborators, Solar activity remains at a very low level. The largest event during the period was a C1.1 flare at 08/31/17:56 UT from NOAA 14517 (N10W88). 14517 also produced several mid-to-high B-class flares during the period, but has now rotated completely over the west limb, with overlying loops visible above the limb. The target region NOAA 14520 (S12W14, beta/ D-type) produced only three mid-to-high B-class flares during the period, but showed increases in both sunspot area and spot number. Today, we will continue to watch NOAA 14520 as the target region. Further C-class activity is expected in the following 24 hours. The position of NOAA 14520 on September 1 at 11:30 UT is: S12W14 (225", -310") 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, De-Chao Song (Purple Mountain Observatory)

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MM#009 Default Target
by Max Millennium Chief Observer 31 Aug '26

31 Aug '26

Dear Collaborators, Solar activity remains at a very low level. Yesterday's target region NOAA 14517 produced only one B6.8 flare since the last message and is now almost entirely over the west limb. The largest event during the period was a C2.6 flare at 08/31/15:09 UT from NOAA 14520 (S12W01; beta/D-type). This region also produced two additional ~C1 flares during the period. Today, we will switch the target region to NOAA 14520. In addition, an unnumbered active region near the east limb (N18E87) produced two ~C1 flares and one B8.6 flare during the period. Additional C-class activity is expected in the following 24 hours. The position of NOAA 14520 on August 31 at 15:30 UT is: S12W01 (16",-313") 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, De-Chao Song (Purple Mountain Observatory)

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

30 Aug '26

Dear Collaborators, Solar activity remains at a very low level. The largest event since the last message was a C2.2 flare at 08/30/16:41 UT from the previous target NOAA 14513 (N04W70) that retains a beta/D-type configuration. The target region NOAA 14517, having a beta/E-type sunspot group, was flare quiet during the period. It is rotating over the west limb. Today we will continue to watch this region, for a final 24 hours. If possible, please also include NOAA 14513 in the field of view. Additional C-class activity is expected in the following 24 hours. The position of NOAA 14517 on August 30 at 19:30 UT is: N09W84 (933", 135") 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 29 Aug '26

29 Aug '26

Dear Collaborators, Solar activity continues at a very low level. The largest event since the last message was a C3.0 flare at 01:10 UT today from a northeast limb region (N11E88). NOAA 14517 was the source of two C1 flares plus five high B-class flares, which has a beta/ E-type configuration. Today we will switch the target to NOAA 14517. The previous target NOAA 14513 (N04W60) has been downgraded to a beta/D-type region, decreasing in the sunspot area and number of spots significantly. Additional C-class activity is expected from NOAA 14517 and also the northeast limb region. The position of NOAA 14517 on August 30 at 03:30 UT is: N09W74 (902", 115") 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 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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