MMmotd July 2023

mmmotd@solar.physics.montana.edu

1 participants
31 discussions

MM#009 Default Target
by Max Millennium Chief Observer 21 Jul '23

21 Jul '23

Dear Collaborators, Solar activity has been at a very low level. The largest event since the last message was a C2.1 flare at 10:44 UT on July 21 from the target region NOAA 13373. 13373 also produced another C1.4 flare during the period. It has been designated as a beta-gamma-delta/E-type sunspot group. NOAA 13379 (N16E49, beta/F-type) and 13378 (S26W15, beta/C-type) also produced two ~C1 flares. Additional C-class flares are expected in the next 24 hours. The position of NOAA 13373 on July 22 at 00:00 UT N08W29 (454", 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, Ying Li (Purple Mountain Observatory)

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MM#009 Default Target
by Max Millennium Chief Observer 21 Jul '23

21 Jul '23

Dear Collaborators, Solar activity has been at a low level since the last message. The largest event during the period was a C9.7 flare at 19:40 UT on July 20 from NOAA 13373. 13373 was also the source of two low C-class flares. Today the target will switch to 13373 that retains a beta-gamma/D-type configuration. Yesterday's target NOAA 13372 (N23W39) only produced a C1.9 flare but was classified as a beta-gamma/F-type sunspot group again. Please note that NOAA 13379 (N16E61, beta/F-type) rotates on the visible disk and has produced a C2.3 flare. This region is showing mixed polarities in its leading and trailing portions. More C-class flares are expected in the next 24 hours. The position of NOAA 13373 on July 21 at 03:30 UT N08W17 (274", 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, Ying Li (Purple Mountain Observatory)

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MM#009 Default Target
by Max Millennium Chief Observer 19 Jul '23

19 Jul '23

Dear Collaborators, Solar activity was at a moderate level in the past 24 hours. The largest event was an M3.8 at 07/19/17:04 UT from yesterday's target NOAA 13363. 13363 also produced another M1.4 flare at 07/19/10:49 UT and more than ten C-class flares. 13363 has completely rotated beyond the west limb and now we end the Major Flare Watch campaign. Today the target will switch to NOAA 13372 that has a beta/F-type configuration. 13372 produced a C2.5 flare yesterday and is showing mixed polarities in its trailing portion. In addition, NOAA 13376 (N25E14, beta/D-type) produced two C2.6 flares during the period. Further C-class activities are expected in the next 24 hours. The position of NOAA 13372 on July 20 at 03:30 UT N24W26 (379", 319") 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 18 Jul '23

18 Jul '23

Dear Collaborators, Solar activity has been at a moderate level as the target region NOAA 13363 rotates beyond the west limb. The largest event in the previous 24 hours was an occulted M2.1 flare at 20:16 UT yesterday from 13363. 13363 also produced two high C-class flares. Please note that a northeast limb region (N15E85, unnumbered yet) produced an occulted M1.5 flare at 06:45 UT yesterday and NOAA 13376 (N23E27, beta-gamma/D-type) produced two low M-class flares (an M1.3 at 19:32 UT and an M1.4 at 20:00 UT). The Major Flare Watch campaign will continue on NOAA 13363 for a final 24 hours. Low M-class activities are still expected from various regions with a slight chance of an above M5 flare in the next 24 hours. The position of NOAA 13363 on July 19 at 03:30 UT S21W88 (880", -339") 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 Jul '23

17 Jul '23

Dear Collaborators, Solar activity is at a high level. The largest event is an M5.7 major flare peaking at 00:06 UT, which is still happening now. In addition to this M5.7 flare, the target region NOAA 13363 produced another M5.0 major flare and an M2.7 flare during the last six hours. 13363 retains a beta-delta/D-type configuration and is rotating over the west limb. Note that NOAA 13373 (N07E23) was the source of eight C-class flares and has been designated as a beta-delta/E-type region. The Major Flare Watch will continue on NOAA 13363 for a further 24 hours. Low M-class flares are expected with some chance of additional major flare in the next 24 hours. The position of NOAA 13363 on July 18 at 03:30 UT S22W76 (849", -369") 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 Jul '23

16 Jul '23

Dear Collaborators, Solar activity continues at a moderate level. The largest event since the last message was an M4.0 flare at 07/16/17:36 UT from the target region NOAA 13363. 13363 was also the source of eight C-class flares during the period. It retains a beta-delta/ D-type configuration. NOAA 13372 produced two ~M1 flares (an M1.1 at 07/16/08:16 UT and an M1.8 07/16/14:57 UT) and two ~C2 flares and has been designated as a beta-gamma-delta/ F-type region. The Major Flare Watch campaign will continue on NOAA 13363. Further low M-class activities are expected with a chance of an above M5 flare in the next few days. The position of NOAA 13363 on July 17 at 03:30 UT S22W61 (766", -386") 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 Jul '23

15 Jul '23

Dear Collaborators, Solar activity continues at a moderate level. The largest event since the last message was an M2.9 at 07/15/07:21 UT from NOAA 13363. 13363 was also the source of more than ten C- class flares in the period. It retains a beta-delta/D-type configuration. Today the Major Flare Watch region will switch to 13363. The previous target NOAA 13372 produced two low M-class flares, an M1.1 at 09:43 UT and an M2.2 at 10:05 UT on July 15, and also five C-class flares. 13372 retains its beta-delta/E-type configuration. Some other regions (NOAA 13368, 13370, and 13373) produced a few C-class flares as well. Additional low M-class flares are expected with still a chance of an above M5 flare in the next few days. The position of NOAA 13363 on July 16 at 03:30 UT S22W49 (661", -397") 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 Jul '23

14 Jul '23

Dear Collaborators, Solar activity has been at a moderate level since the last message. The largest event since the last message was an M2.1 flare at 18:55 UT yesterday from the target region NOAA 13372. 13372 also produced four C-class flares including a C9.7 in the period. It retains a beta/E-type configuration. Please note that NOAA 13363 (S23W24, beta-gamma/D-type) produced an M1.0 flare just now and it is still emerging new magnetic fluxes. Further low M-class flares are expected with a chance of a major flare from these two regions. The position of NOAA 13372 on July 14 at 07:30 UT N24E49 (-652", 342") 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 Jul '23

13 Jul '23

Dear Collaborators, Solar activity has been at intermediate levels since the last message. The target region NOAA 13372 produced 11 C-class flares in the period, the largest one being a C9.4 flare at 07/13/05:05 UT. 13372 has been designated as a beta/E-type configuration. NOAA 13361 (N25W69, beta-gamma/D-type) also produced several C4 or C5 flares. Today we will continue the Major Flare Watch campaign. Further C-class flares are expected with still a chance of major flares in the next few days. The position of NOAA 13372 on July 13 at 07:30 UT N24E61 (-755", 353") 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 Jul '23

12 Jul '23

Dear Collaborators, Solar activity has been at a high level since the last message. The northeast limb region mentioned in the previous message was designated as NOAA 13372 and has produced three major flares (an M6.8 at 07/11/17:51 UT, an M5.8 at 07/11/22:04 UT, and an M6.9 at 07/12/08:49 UT), four low M-class flares, and six C-class flares. Now we are implementing the Major Flare Watch campaign. Another three regions, NOAA 13368, 13366, and 13361 also produced three low M-class flares. Low M-class activities are expected with a good chance of additional above M5 flares in the next few days. The position of NOAA 13372 on July 12 at 11:30 UT N22E68 (-812", 330") 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 July 2023