MMmotd September 2024

mmmotd@solar.physics.montana.edu

1 participants
30 discussions

MM#009 Default Target
by Max Millennium Chief Observer 20 Sep '24

20 Sep '24

Dear Collaborators, Solar activity continues at a very low level. The largest event since the last message was a C2.6 flare at 15:17 UT on September 19 produced by the target region NOAA 13825. 13825 retains a beta-gamma-delta/E-type configuration but increases in the spot area and number of spots. Please note that another region NOAA 13824 (S04W85, beta/E-type) was the source of five C1/C2 flares in the period, which is rotating over the west limb. Only C-class activities are expected in the next 24 hours. The position of NOAA 13825 on September 20 at 03:30 UT is: S16W23 (360", -367") 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 19 Sep '24

19 Sep '24

Dear Collaborators, Solar activity was at a very low level. The largest events since the last message were two C3.0 flares produced by the target region NOAA 13825 and NOAA 13824 (S04W73, beta-gamma/E-type). The target 13825 has been designated as a beta-gamma-delta/E-type region, which shows some flux emergence in its leading portion. C-class activities are expected with some chance of an isolated low M-class flare in the next 24-hour period. The position of NOAA 13825 on September 19 at 07:30 UT is: S15W11 (176", -358") 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 18 Sep '24

18 Sep '24

Dear Collaborators, Solar activity continues at a very low level. The largest event in the past 24 hours was a C4.1 flare at 09/18/03:33 UT produced by NOAA 13828 (S13E57, alpha/H-type). 13828 also produced another two low C-class flares. The target region NOAA 13825 was the source of two low C-class flares (C2.4 and C1.6) in the period, which retains a beta-gamma/E-type configuration. At this time, we are ending the Major Flare Watch campaign. Further C-class activities are expected with a small chance of an M-class flare in the next 24 hours. The position of NOAA 13825 on September 18 at 07:30 UT is: S15E02 (-32", -361") 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#003 Major Flare Watch
by Max Millennium Chief Observer 17 Sep '24

17 Sep '24

Dear Collaborators, Solar activity continues at a low level. The largest event since the last message was a C9.6 flare at 09/16/23:29 UT produced by the target region NOAA 13825. 13825 retains a beta-gamma/E-type configuration but increases the sunspot area and number of spots slightly. New magnetic flux is emerging again especially in the leading portion of sunspots. Today we will continue the Major Flare Watch campaign on this region for one more day. Low M-class activity is likely with some chance of a flare above M5 in the next 24 hours. The position of NOAA 13825 on September 17 at 07:30 UT is: S16E16 (-253", -372") 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#003 Major Flare Watch
by Max Millennium Chief Observer 16 Sep '24

16 Sep '24

Dear Collaborators, Solar activity has been at a low level since the last message. The largest event during the period was a C6.0 flare at 01:21 UT today produced by NOAA 13824 (S04W35, beta-gamma/C-type). The target region NOAA 13825 only produced four C-class flares with the largest one being a C5.0 at 13:30 UT today. 13825 has been designated as a beta-gamma/E-type region with decreasing the sunspot area and number of spots significantly. The Major Flare Watch campaign will continue for a further 24 hours. C-class activities are expected with a small chance of a major flare in the next 24 hours. The position of NOAA 13825 on September 16 at 15:30 UT is: S15E26 (-405", -349") 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#003 Major Flare Watch
by Max Millennium Chief Observer 15 Sep '24

15 Sep '24

Dear Collaborators, The Major Flare Watch target NOAA 13825 was the source of an X4.5 flare at 15:13 UT on September 14 and seven C-class flares. It has been designated as a beta-gamma-delta/D-type configuration with increasing the number of spots significantly. Today the Major Flare Watch campaign continues on this region. Low M-class activities are expected with a chance of a major flare in the next few days. The position of NOAA 13825 on September 15 at 15:30 UT is: S18E39 (-572", -381") 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#003 Major Flare Watch
by Max Millennium Chief Observer 14 Sep '24

14 Sep '24

Dear Collaborators, Solar activity was at a moderate level in the past 24 hours. The target region has been designated as NOAA 13825 with a beta-gamma/D-type sunspot group. 13825 was the source of three M-class flares, with the largest one being an M3.0 at 07:26 UT today, and three C-class flares including a C9.4. Today we will continue the Major Flare Watch on this region. It is still emerging some new spots. Low M-class activities are expected with some chance of a major (>M5.0) flare in the next few days. The position of NOAA 13825 on September 14 at 07:30 UT is: S18E59 (-778", -351") 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#003 Major Flare Watch
by Max Millennium Chief Observer 13 Sep '24

13 Sep '24

Dear Collaborators, Solar activity continues to be at a high level. There were two major flares, an M6.9 at 09/12/14:31 UT and an M5.3 at 09/13/06:38 UT, produced by the west limb region NOAA 13811 (S13W91, beta-gamma/ D-type). This region was also the source of two low M-class flares and five C-class flares in the period. Considering that 13811 is almost rotating over the west limb, we still keep the Major Flare campaign on the southeast unnumbered region. It produced two low M-class flares, an M1.6 and an M2.1 after yesterday's X1.3 flare. This region has rotated onto the visible disk and seems to have a complex magnetic configuration. Low M-class flares are expected from the two regions as mentioned, with a chance of a >M5 flare in the next 24 hours. The approximate position of the target on September 13 at 07:30 UT is: S17E80 (-890", -280") 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#003 Major Flare Watch
by Max Millennium Chief Observer 12 Sep '24

12 Sep '24

Dear Collaborators, Solar activity has increased significantly since the last message. A southeast limb region just produced an X1.3 flare at 09:31 UT today. This limb region also produced an M1.9 flare and five C-class flares during the period. At this time, we are implementing a Major Flare Watch campaign on this limb region which is rotating onto the visible disk. Yesterday's target region NOAA 13814 produced two low M-class flares (M1.8 and M2.0) and retains a beta-gamma- delta/D-type configuration. Also note that NOAA 13811 (S13W82, beta/D-type) was the source of four low M-class flares as well as an M5.0 flare at 23:49 UT yesterday. Low M-class flares are expected from various regions with a good chance of a major flare (>M5) in the next 24-48 hours. The approximate position of the target on September 12 at 09:30 UT is: S16E87 (-920", -280") 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 11 Sep '24

11 Sep '24

Dear Collaborators, Solar activity continues at a moderate level. The largest event in the past 24 hours was an occulted M1.6 flare at 09/10/15:34 UT from the previous limb target region. The present target region NOAA 13814 produced an M1.0 flare at 09/10/23:38 UT and has been designated as a beta-gamma-delta/D-type configuration with increasing the sunspot area and number of spots. Some other regions, such as NOAA 13811 (S12W68, beta/D-type) and 13820 (S18W42, alpha/H-type), produced a few C-class flares during the period. C-class activities are expected with a change of additional low M-class flare in the next 24 hours. The position of NOAA 13814 on September 11 at 07:30 UT is: N16W06 (96", 146") 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