MMmotd June 2023

mmmotd@solar.physics.montana.edu

1 participants
30 discussions

MM#009 Default Target
by Max Millennium Chief Observer 30 Jun '23

30 Jun '23

Dear Collaborators, The level of solar activity is moderate. Target region NOAA 13354 has remained a beta-gamma-delta/E-type configuration and increased in size since the last message, showing mixed polarities in its intermediate and northern portions. 13354 was the most flare-productive region in the period with being the source of several C-class flares, including the largest magnitude flare - an M3.8 at 14:00 UT yesterday. 13354 shall continue as the target region due to its high current helicity and magnetic complexity. More C-class flares are expected over the following 24-hour period, with a good chance for additional M-class flares. The position of NOAA 13354 on 30-Jun-2023 at 07:30 UT is: N15W20 (312", 203") 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, Ying Li (Purple Mountain Observatory)

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MM#009 Default Target
by Max Millennium Chief Observer 29 Jun '23

29 Jun '23

Dear Collaborators, Solar activity has been at a moderate-to-low level since the last message. Yesterday's target region NOAA 13340 retained a beta-gamma/E-type configuration and only produced two C1 flares in the period. It continues to decay. The largest event in the period was a C5.5 flare from NOAA 13354 (N14W07) at 18:33 UT yesterday. 13354 remained as the largest sunspot group on the visible disk, which has increased in magnetic complexity and been classified as a beta-gamma-delta/E-type configuration with minor mixed polarities within its intermediate portion. Today the target shall switch to NOAA 13354. Please note that the nearby region NOAA 13351 (N21W12, beta/B-type) also produced a C5.0 flare in the period. If possible, please also include NOAA 13351 in your field of view. Further C-level flares are expected in the following 24 hours, with a chance for an isolated M-class flare. The position of NOAA 13354 on 29-Jun-2023 at 07:30 UT is: N14W07 (112", 187") 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, Ying Li (Purple Mountain Observatory)

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MM#009 Default Target
by Max Millennium Chief Observer 28 Jun '23

28 Jun '23

Dear Collaborators, Solar activity is at a moderate level. Target NOAA 13340 continues to be classified as a beta-gamma/E-type sunspot group as it approaches the western limb. 13340 produced multiple C-class as well as two M1 flares in the period and the largest event was an M1.9 flare at 08:26 UT today. 13340 shall continue as the target region. Please note that NOAA 13354 (N15E07) has been classified as a beta-gamma/D-type configuration with significantly increasing in the sunspot area and number of spots. It produced nine low C-class flares during the period. More C-class flares are expected over the following 24-hour period, with a good chance for additional M-class flares from NOAA 13340 and 13354. The position of NOAA 13340 on 28-Jun-2023 at 07:30 UT is: N23W62 (768", 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, De-Chao Song, Ying Li (Purple Mountain Observatory)

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MM#009 Default Target
by Max Millennium Chief Observer 27 Jun '23

27 Jun '23

Dear Collaborators, Solar activity is at a low-to-moderate level. Target NOAA 13340 grew slightly in terms of sunspot area and number of spots since the last message, now being classified as a beta-gamma region with some mixed polarities in the trailing portion. 13340 remained the most flare-productive region, being the source of multiple C-class flares and the largest magnitude flare in the period - an M1.6 at 16:08 UT yesterday. 13340 shall continue as the target region. Please note that a newly emerged region NOAA 13354 (N15E20, beta/C-type) underwent rapid flux emergence and also produced two low C-class flares in the period. Further C-class flares are expected in the following 24-hour period, with a chance for another M-class flare. The position of NOAA 13340 on 27-Jun-2023 at 07:30 UT is: N20W49 (670", 298") 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, Ying Li (Purple Mountain Observatory)

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MM#009 Default Target
by Max Millennium Chief Observer 26 Jun '23

26 Jun '23

Dear Collaborators, Solar activity has remained at a low level since the last message. Yesterday's target region NOAA 13341 further decayed in terms of sunspot area and only produced two C1 flares in the period, while continuing to be classified as a beta/C-type sunspot group. NOAA 13340 (N23W35, beta-gamma/E-type) was the most flare-productive region in the period with being the source of 10 C-class flares, including the largest magnitude flare - a C7.1 at 03:49 UT today. The target will now switch to NOAA 13340. Please note that NOAA 13337 (N21W65, alpha/H-type) also produced a high C-class (C6.8) flare at 21:56 UT yesterday. More C-class flares are expected over the following 24-hour period, with low M-class activity also possible. The position of NOAA 13340 on 26-Jun-2023 at 07:30 UT is: N23W35 (499", 341") 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, Ying Li (Purple Mountain Observatory)

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MM#009 Default Target
by Max Millennium Chief Observer 25 Jun '23

25 Jun '23

Dear Collaborators, The level of solar activity is low. Target region NOAA 13341 decayed slightly in terms of sunspot area over the past 24 hours, but it has remained a beta/C-type sunspot group classification. Both NOAA 13337 (a beta/C-type group) and NOAA 13340 (a beta/E-type group) produced C-class flares in the period, but NOAA 13341 was again the source of the largest magnitude flare - a C8.5 on 25-Jun-2023 at 12:03 UT. At this point we terminate the MM#003 Major Flare Watch, although NOAA 13341 remains the default target. More C-class activity is expected over the following 24-hour period, with a chance for an isolated M-class flare. The position of NOAA 13341 on 25-Jun-2023 at 18:00 UT is: S16W01 , ( 14", -296" ) 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, Shaun Bloomfield (Northumbria University)

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MM#003 Major Flare Watch
by Max Millennium Chief Observer 24 Jun '23

24 Jun '23

Dear Collaborators, Solar activity is at a low-to-moderate level. Target NOAA 13341 was again stable in terms of sunspot area and number of spots since the last message, remaining classified as a beta/C-type sunspot group. NOAA 13337 (a small beta/D-type region) produced the most flares in the period and the largest magnitude flare - an M1.1 on 24-Jun-2023 at 12:11 UT. The MM#003 Major Flare Watch will continue for a final 24 hours on NOAA 13341 (unless additional activity/growth is seen). Low M-class flares are possible in the next 24 hours, with a small chance for an isolated >M5 or X-class flare. The position of NOAA 13341 on 24-Jun-2023 at 18:00 UT is: S16E12 , ( -191", -294" ) 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, Shaun Bloomfield (Northumbria University)

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MM#003 Major Flare Watch
by Max Millennium Chief Observer 23 Jun '23

23 Jun '23

Dear Collaborators, The level of solar activity is moderate. Target region NOAA 13341 again remained stable in terms of sunspot area and number of spots since the last message, but has shown some signs of spot separation while continuing to be classed as a beta/C-type sunspot group. NOAA 13335 (a beta/E-type region) was the most flare-productive region in the period (at least in terms of flare frequency) with being the source of multiple C-class flares, but NOAA 13341 still produced a few C-class flares and the largest magnitude flare - an M4.8 flare on 22-Jun-2023 at 23:29 UT. The MM#003 Major Flare Watch remains in effect on NOAA 13341 for another 24 hours. Low M-class flares are probable over the following 24-hour period, with a chance for a >M5 or X-class flare. The position of NOAA 13341 on 23-Jun-2023 at 18:00 UT is: S16E25 , ( -387", -290" ) 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, Shaun Bloomfield (Northumbria University)

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MM#003 Major Flare Watch
by Max Millennium Chief Observer 22 Jun '23

22 Jun '23

Dear Collaborators, Solar activity is at a moderate level. Target region NOAA 13341 has been quite stable in terms of number of spots and spot area since the last message, but has decreased in its designation of magnetic complexity to a beta/C-type sunspot group. NOAA 13341 remained the most flare-productive region, being the source of multiple C-class flares and the largest magnitude flare in the period - another M1.1 on 22-Jun-2023 at 10:57 UT. NOAA 13341 will continue as the MM#003 Major Flare Watch target for at least another 24 hours. Further low M-class flares are probable in the next 24 hours, with a chance for an isolated >M5 or X-class flare. The position of NOAA 13341 on 22-Jun-2023 at 18:00 UT is: S15E38 , ( -564", -268" ) 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, Shaun Bloomfield (Northumbria University)

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MM#003 Major Flare Watch
by Max Millennium Chief Observer 21 Jun '23

21 Jun '23

Dear Collaborators, The level of solar activity is moderate-to-high. Target NOAA 13341 has matured since the last message without significant change in number of spots or spot area, increasing in magnetic complexity to be classified as a beta-gamma/D-type sunspot group. NOAA 13337, a previously decayed region that is emerging new spots, produced an M1.0 flare in the period (on 21-Jun-2023 at 15:31 UT) but NOAA 13341 continued to be the most flare-productive region with being the source of several C-class flares and the largest magnitude flare in the period - an M1.1 on 21-Jun-2023 at 12:31 UT. The MM#003 Major Flare Watch will continue on NOAA 13341. Additional low M-class flares are probable over the following 24-hour period, with a chance for another >M5 or X-class flare. The position of NOAA 13341 on 21-Jun-2023 at 18:00 UT is: S15E48 , ( -680", -264" ) 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, Shaun Bloomfield (Northumbria University)

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MMmotd June 2023