MMmotd August 2023

mmmotd@solar.physics.montana.edu

1 participants
31 discussions

MM#009 Default Target
by Max Millennium Chief Observer 31 Aug '23

31 Aug '23

Dear Collaborators, Solar activity continues at low levels. The largest event since the last message was a C3.0 flare at 23:20 UT on 30-Aug-2023 from NOAA 13413. 13413 was also the source of a C1.5 flare and it retains its beta/D-type magnetic configuration. Today the target shall switch to NOAA 13413. Yesterday’s target NOAA 13417 (S05E39, beta/D-type) was quiescent in the period. In addition, NOAA 13415 (S09W38, beta/D-type) and two plage regions (S26W11, N17W49) also produced a few low-C flares. B-class activities are expected with low C-class flares probable in the next 24 hours. The position of NOAA 13413 on 31-Aug-2023 at 11:30 UT N09W55 (770", 80") 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 30 Aug '23

30 Aug '23

Dear Collaborators, Solar activity has been at low levels for the past 24 hours. The largest event was a C4.0 flare at 23:17 UT on 29-Aug-2023 from NOAA 13417. 13417 also produced a C1.7 plus a B9.9 flares. This region was classified as a beta/C-type with mixed polarities in the leading portion. Today the target region shall switch to NOAA 13417. Yesterday’s target (still unnumbered, N21E81) was the source of 2 C1 flares and 2 B-class flares but it has a low and decreasing current helicity. In addition, NOAA 13413 (N09W43, beta/D-type) and NOAA 13415 (S10W26, beta-gamma/D-type) also produced a C1.3 plus a B8.4 flares. Additional C-class activities are likely from various active regions with a slight chance of a low M-class flare in the following 24 hours. The position of NOAA 13417 on 30-Aug-2023 at 11:30 UT S07E54 (-764", -184") 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 29 Aug '23

29 Aug '23

Dear Collaborators, Solar activity has increased since the last message. The largest event was a C2.3 flare at 23:54 UT on 28-Aug-2023 produced by a northeast limb region (unnumbered yet). This region was the most flare-productive for the source of multiple low-C and B-class events. Today the target region shall switch to the limb region. Yesterday’s target NOAA 13413 (N10W32, beta-delta/D-type) only produced 3 C1 flares. NOAA 13417 (S08E68, beta/D-type) and NOAA 13416 (S19E21, alpha/H-type) also produced several C1 flares. More C-class activities are expected with a slight chance of a low M-class flare in the next 24-hour period. The approximate position of the target on 29-Aug-2023 at 11:30 UT N22E87 (-900", 350") 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 Aug '23

28 Aug '23

Dear Collaborators, Solar activity continues at a very low level. The largest event was a C1.0 flare at 03:54 UT today from NOAA 13405, which is almost rotating beyond the west limb. Yesterday’s target (S05E89) was quiescent in the period. NOAA 13413 on the disk retains its beta/D-type magnetic configuration and has increased in sunspot area and counts. Today the target region shall switch to NOAA 13413. B-class activities are expected with low C-class flares probable in the next 24 hours. The position of NOAA 13413 on 28-Aug-2023 at 11:30 UT N10W20 (321", 55") 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 Aug '23

27 Aug '23

Dear Collaborators, Solar activity has been at moderate-to-low levels. The largest event was a long-duration M1.1 flare at 21:30 UT on 26-Aug-2023 from a southeast limb region (unnumbered yet). Today the target region shall switch to this region. Yesterday’s target (NOAA 13405) was only the source of a few low-C flares with magnetic signs of decay. More C-class activities are probable in the next 24 hours with a slight chance of another low M-class flare. The approximate position of the target on 27-Aug-2023 at 11:30 UT S06E90 (-959", -93") 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 Aug '23

26 Aug '23

Dear Collaborators, Solar activity has decreased since the last message. The largest event was a C5.0 flare at 15:40 UT on 25-Aug-2023 from NOAA 13405. This region has been classified as a beta/C-type sunspot group, increasing in magnetic complexity. It also produced a low-C flare plus two B-class flares and continued to be the most flare-productive region. Today the target region shall switch to NOAA 13405. Yesterday’s target (NOAA 13415) was flare quiet although it was classified as a beta-delta/D-type. In addition, NOAA 13413 (beta/D-type, N11E09) and NOAA 13416 (alpha/H-type, S19E64) were also the sources of a few low-C and B-class flares. Additional C-class activities are expected from various regions in the next 24 hours with a slight chance of a low M-class flare. The position of NOAA 13405 on 26-Aug-2023 at 11:30 UT N10W82 (926", 147") 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 Aug '23

25 Aug '23

Dear Collaborators, Solar activity has reached a moderate level. The largest event since the last message was a M1.5 flare at 00:56 UT today from NOAA 13415. This region was still classified as a beta/D-type configuration and emerged a new sunspot. Today the target region shall switch to NOAA 13415. Yesterday’s target (NOAA 13413) has been quiescent over the period. Please note that NOAA 13405 (alpha/H-type, N09W68) and NOAA 13403 (N29W86) also produced several low-C and B-class flares. More C-class activities are expected from various regions in the next 24 hours with a slight chance of another low M-class flare. The position of NOAA 13415 on 25-Aug-2023 at 11:30 UT S09E42 (-629", -233") 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 Aug '23

24 Aug '23

Dear Collaborators, Solar activity has returned to low levels since the last message. Yesterday’s target (NOAA 13405) produced the largest event, a C3.9 flare at 13:54 UT on 23-Aug-2023, but it was downgraded to an alpha/H-type configuration. NOAA 13413 was the most productive in the period. It has been classified as a beta/F-type sunspot group and increased in sunspot area and emerged new spots. Today the target region will switch to NOAA 13413. In addition, NOAA 13415 (beta/D-type, S11E55) was also the source of a few low C-class and B-class flares. More C-class activities are probable in the next 24 hours. The position of NOAA 13413 on 24-Aug-2023 at 11:30 UT N10E39 (-589", 75") 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 Aug '23

23 Aug '23

Dear Collaborators, Solar activity has increased over the past 24 hours with an M1.1 flare at 22:35 UT on 22-Aug-2023 produced by NOAA 13405. This region also produced a C7.2 and several low-C flares. It increased in the number of spots and has been classified as a beta/C-type sunspot group. Today the target region will switch to NOAA 13405. Yesterday’s target was numbered as NOAA 13415 (alpha/H-type, S09E67) and was only the source of two low C-class flares. Further C-class activities are expected over the following 24-hour period, with a chance for an additional low M-class flare. The position of NOAA 13405 on 23-Aug-2023 at 11:30 UT N09W40 (604", 60") 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 Aug '23

22 Aug '23

Dear Collaborators, Solar activity has reached an intermediate level. The largest event since the last message was a C5.7 flare at 23:47 UT on 21-Aug-2023 from the target region. This region remains the highest frequency of flaring and has also produced 5 low-C flares. It shows a high and increasing current helicity. Today the target region shall continue at this region. Please note that NOAA 13413 (N10E66, alpha/H-type) and NOAA 13405 (N10W27, alpha/H-type) also produced several low-C flares. Additional C-class activities are probable in the next 24 hours. The approximate position of the target on 22-Aug-2023 at 11:30 UT S09E88 (-900", -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, Qiao Li (Purple Mountain Observatory)

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MMmotd August 2023