MMmotd September 2024

mmmotd@solar.physics.montana.edu

1 participants
30 discussions

MM#009 Default Target
by Max Millennium Chief Observer 30 Sep '24

30 Sep '24

Dear Collaborators, Solar activity remains moderate. Several flares were produced over the last 24 hours, the largest being an M1.8 from NOAA 13842 at 14:09 UT yesterday. NOAA 13482 has now developed into a beta-gamma-delta type region with a sunspot area of 230 μh. Currently, NOAA 13482 shows steady sunspot behaviour, however the development of this region should be closely monitored over the next 24 hours. Further C-class activity is expected, with a chance for additional M-class activity in the next 24 hours. The position of NOAA 13842 on 30-September-2024 at 11:30 UT is: S15E38, (-571",-332") 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 29 Sep '24

29 Sep '24

Dear Collaborators, Solar activity continues at a moderate level. The largest event since the last message was an M1.0 flare at 12:49 UT today from an unnumbered region (S10E23), which emerged a bipolar sunspot group. This M1.0 flare was superimposed on the gradual phase of a long-duration C5.6 flare at 07:46 UT produced by a region currently beyond the South East limb (N14E88). The eastern part of the target region has been renumbered as NOAA 13842 and has been confirmed as a beta-gamma/D-type sunspot group, with an area of 220 MSH. Today the default target region will remain with NOAA 13842 due to its overall size and prior flaring history. Further C-class activities are expected, with a chance of another low-M flare in the next 24 hours. The position of NOAA 13842 on 29-Sep-2024 at 11:30 UT is: S14E50 (-713", -301") 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)

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MM#009 Default Target
by Max Millennium Chief Observer 28 Sep '24

28 Sep '24

Dear Collaborators, Solar activity has returned to a low level in the past 24 hours. The target region NOAA 13839 was still the most productive region. It was the source of five C-class flares, with the largest magnitude being a C6.3 at 14:14 UT yesterday. 13839 has been reclassified as a beta/F-type magnetic configuration as it rotates further onto the solar disk. In addition, NOAA 13836 (S12E11, beta-gamma/D-type) and NOAA 13835 (S22W06, beta/D-type) also produced three C3 flares. Further C-class activities are expected, with a low-M flare likely in the next 24 hours. The position of NOAA 13839 on 28-Sep-2024 at 11:30 UT is: S14E56 (-771", -292") 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)

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MM#009 Default Target
by Max Millennium Chief Observer 27 Sep '24

27 Sep '24

Dear Collaborators, Solar activity continues at a moderate level. The largest event since the last message was an M1.4 flare at 22:58 UT yesterday produced by the previous limb region. This region also produced an M1.0 flare plus eight C-class flares, numbered as NOAA 13839. It has been classified as an alpha/H-type configuration but its proximity to the limb hampers accurate classification. 13839 should become the new target due to its current level of flaring. Yesterday’s target region NOAA 13836 (S10E24, beta-gamma/D-type) only shows some brightenings in EUV images. Further C-class activities are expected, with a chance of an isolated low-M flare in the next 24 hours. The position of NOAA 13839 on 27-Sep-2024 at 11:30 UT is: S14E66 (-849", -275") 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)

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

26 Sep '24

Dear Collaborators, Solar activity has increased to a moderate level. Three regions produced >C5 flares since the last message. NOAA 13828 (S11W55, alpha/H-type) produced the largest event - an M1.3 flare at 22:57 UT yesterday. An unnumbered region near the South East limb (S12E82) was also the source of a C5.2 flare at 11:50 UT today. NOAA 13836 produced a long-duration C9.6 flare at 14:41 UT yesterday. It retains a beta-gamma/D-type magnetic configuration and became the most productive region. Today's target region shall switch to 13836 because of its high magnetic complexity and flaring productivity. Yesterday’s target region NOAA 13835 (S22E17, beta-gamma/D-type) has been flare quiet in the period. Further C-class activities are expected, with another low-M flare probable in the following 24-48 hours. The position of NOAA 13836 on 26-Sep-2024 at 11:30 UT is: S10E38 (-582", -255") 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)

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MM#009 Default Target
by Max Millennium Chief Observer 25 Sep '24

25 Sep '24

Dear Collaborators, Solar activity has dropped to a low level. The target region NOAA 13835 only produced a C2.4 flare at 14:01 UT yesterday. However, 13835 has again experienced the emergence of new magnetic fluxes in its intermediate portion since the last message, remaining a beta/D-type sunspot group. 13835 shall continue as the target. In addition, NOAA 13833 (N22W60, beta/C-type), NOAA 13828 (S11W41, alpha/H-type) and NOAA 13836 (S10E52, beta-gamma/D-type) also produced a few low-C flares, with the largest two being a C4.0 at 07:27 UT and a C3.7 at 10:07 UT today from 13836. Additional C-class activities are expected in the next 24 hours. The position of NOAA 13835 on 25-Sep-2024 at 11:30 UT is: S22E31 (-458", -449") 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)

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

24 Sep '24

Dear Collaborators, Solar activity has returned to a moderate level. The largest event was an M1.4 flare at 14:23 UT yesterday from NOAA 13836 (S12E65, beta-gamma/D-type). A spotless region (S16W21) near NOAA 13828 also produced a C6.9 flare at 11:29 UT today. The target region NOAA 13835 was the source of a C6.5 flare at 03:33 UT today. This region retains its beta/D-type magnetic configuration and it continues to emerge new spots. Today the target region should remain with NOAA 13835. Further C-class activities are expected, with a chance of another low-M flare in the coming 24 hours. The position of NOAA 13835 on 24-Sep-2024 at 11:30 UT is: S25E42 (-581", -480") 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)

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MM#009 Default Target
by Max Millennium Chief Observer 23 Sep '24

23 Sep '24

Dear Collaborators, Solar activity has been at a moderate-to-low level. The largest event since the last message was an M3.8 flare at 21:12 UT on 22-Sep-2024 from NOAA 13835. This region emerged yesterday and has been classified as a beta/D-type sunspot group. 13835 shall become the new target. Yesterday’s target NOAA 13831 only produced a C3.7 flare at 13:18 UT on 22-Sep-2024. Besides, the other three low-C flares are produced by two active regions (NOAA 13828 and 13825) and an unnumbered region from the South East limb (S16E87). More C-class flares are expected, with M-class activity likely in the following 24 hours. The position of NOAA 13835 on 23-Sep-2024 at 11:30 UT is: S22E56 (-736", -416") 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)

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MM#009 Default Target
by Max Millennium Chief Observer 22 Sep '24

22 Sep '24

Dear Collaborators, Solar activity continues at a very low level. The target region NOAA 13831 was the source of three low C-class flares (all flares during the period recorded by GOES), with the largest one being a C4.5 at 20:37 UT on September 21. 13831 retains a beta/D-type configuration. Further C-class activities are expected in the next 24 hours. The position of NOAA 13831 on September 22 at 11:30 UT is: N12W30 (469", 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, Ying Li (Purple Mountain Observatory)

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MM#009 Default Target
by Max Millennium Chief Observer 21 Sep '24

21 Sep '24

Dear Collaborators, Solar activity continues at a very low level. The largest event during the period was a C3.1 flare produced by NOAA 13831. 13831 also produced a C1.7 flare. Today the target will switch to 13831 that has developed to a beta/D-type region. Note that another region of NOAA 13834 also produced two low C-class flares. Yesterday's target NOAA 13825 has been flare quiet since the last message. Additional C-class flares are expected in the next 24 hours. The position of NOAA 13831 on September 21 at 07:30 UT is: N12W13 (211", 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, Ying Li (Purple Mountain Observatory)

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MMmotd September 2024