MMmotd

mmmotd@solar.physics.montana.edu

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

21 Feb '24

Dear Collaborators, Solar activity remains at a low level since the last message. A small number of C-class flares were produced, the largest being a partially occulted C4.4 from a currently unnumbered active region over the southeast limb at 01:55 UT today. NOAA 13590 continues to show an increase in both size and complexity, and is currently classified as a beta-gamma type region with a sunspot area of 760 μh. NOAA 13590 will continue to be the target region for the next 24 hours with a chance of further C-class activity or greater. The position of NOAA 13590 on 21-Feb-2024 at 12:30 UT is: N17E44, (-646",364") 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 20 Feb '24

20 Feb '24

Dear Collaborators, Solar activity has remained at a low level since the last message. A small number of C-class flares were produced, the largest being a partially occulted C4.1 from NOAA 13583 at 22:59 UT yesterday. NOAA 13590 is now classified as a beta-type region with a substantial sunspot area of 530 μh. This region continues to demonstrate signs of significant flux as it furthers its transit onto the solar disk. NOAA 13590 will continue to be the target region for the next 24 hours. Further C-class activity is expected, with a slight chance for an isolated M-class flare. The position of NOAA 13590 on 20-Feb-2024 at 12:30 UT is: N18E54, (-748",364") 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 19 Feb '24

19 Feb '24

Dear Collaborators, Solar activity has remained at a low level since the last message. NOAA 13583 produced a small number of low C-class flares as it continues its transit beyond the northwest limb. Newly numbered active region NOAA 13590 produced several mid-level C-class flares at the northeast limb, the largest being a C6.8 at 09:34 UT today. NOAA 13590 is currently showing signs of significant flux as it continues its transit onto the solar disk. The target region will switch to NOAA 13590, with a chance of further C-class activity or greater in the next 24 hours. The position of NOAA 13590 on 19-Feb-2024 at 12:30 UT is: N19E71, (-868",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, Harry Greatorex (Queen's University Belfast)

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MM#009 Default Target
by Max Millennium Chief Observer 18 Feb '24

18 Feb '24

Dear Collaborators, The level of solar activity is low. Target region NOAA 13583 has grown slightly in sunspot area since the last message and is now classified as a beta/F-type sunspot group. NOAA 13583 produced four C-class flares in the period, while a region currently behind the North East limb produced five C-class flares, and the largest magnitude flare was from NOAA 13584 (a beta/C-type sunspot group) in the form of a C7.9 flare on 17-Feb-2024 at 18:22 UT. The target stays on NOAA 13583 due to its higher flaring rate, but the North East limb will be monitored. Additional high C-class flares are probable in the next 24 hours, with a small chance for an M-class flare. The position of NOAA 13583 on 18-Feb-2024 at 16:30 UT is: N09W60 , ( 831" , 209" ) 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#009 Default Target
by Max Millennium Chief Observer 17 Feb '24

17 Feb '24

Dear Collaborators, Solar activity is at a low-to-moderate level. Target region NOAA 13576 has now rotated over the South West limb and was still the most flare-productive region in the period, being the source of multiple high C-class flares and an M3.0 on 16-Feb-2024 at 21:57 UT. The only other region that was the source of flaring activity was NOAA 13583 (a beta/F-type) that produced a C5.2 on 17-Feb-2024 at 05:44 UT. NOAA 13583 becomes the new target. More mid-to-high C-class activity is expected over the following 24-hour period. The position of NOAA 13583 on 17-Feb-2024 at 16:30 UT is: N09W50 , ( 736" , 225" ) 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#009 Default Target
by Max Millennium Chief Observer 15 Feb '24

15 Feb '24

Dear Collaborators, Solar activity is at a low level. Target region NOAA 13576 slowed in decay since the last message, increasing again in longitudinal extent to become classified as a beta-gamma-delta/F-type sunspot group. This region continues to be the source of almost all the flares in the period, having produced multiple C-class flares and the largest magnitude event (a C7.5 on 14-Feb-2024 at 17:53 UT). At this point we terminate the MM#003 Major Flare Watch because the delta-spot in NOAA 13576 has weakened. Further C-class flares are expected over the following 24-hour period, with a chance for an M-class flare. The position of NOAA 13576 on 15-Feb-2024 at 12:30 UT is: S16W72 , ( 888", -232" ) 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)Ying Li (Purple Mountain Observatory)

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MM#003 Major Flare Watch
by Max Millennium Chief Observer 14 Feb '24

14 Feb '24

Dear Collaborators, The level of solar activity is moderate. Target region NOAA 13576 decayed slightly since the last message, becoming classified as a beta-gamma-delta/E-type sunspot group. This region again produced multiple C-class flares in the period along with an M1.0 flare on 14-Feb-2024 at 07:26 UT - the joint largest magnitude flare along with an M1.0 from NOAA 13582 (a beta/D-type group) on 14-Feb-2024 at 03:02 UT. The MM#003 Major Flare Watch will continue with NOAA 13576 for what might be a final 24 hours because it still retains a delta spot. C-class flares are expected in the next 24 hours, with a good chance for low M-class activity and a small chance of an isolated >M5 flare. The position of NOAA 13576 on 14-Feb-2024 at 17:00 UT is: S17W60 , ( 809", -228" ) 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 13 Feb '24

13 Feb '24

Dear Collaborators, Solar activity is at a moderate-to-high level. Target region NOAA 13576 decayed reasonably in terms of sunspot area since the last message, but has remained classified as a beta-gamma-delta/F-type sunspot group. This region again produced several C-class flares and two M-class flares in the period - an M1.5 flare and an M1.6 flare on 12-Feb-2024 at 15:31 UT and 22:00 UT, respectively. The largest magnitude flare (an M2.7 on 12-Feb-2024 at 20:35 UT) came from a new region located at the North East limb, but an accurate classification of this region is affected by its proximity to the limb. The MM#003 Major Flare Watch will continue with NOAA 13576 for at least another 24 hours as it decays further. More M-class flares are likely in the following 24-hour period, with a chance for another >M5 flare. The position of NOAA 13576 on 13-Feb-2024 at 11:00 UT is: S17W43 , ( 636", -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, Shaun Bloomfield (Northumbria University)

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MM#003 Major Flare Watch
by Max Millennium Chief Observer 12 Feb '24

12 Feb '24

Dear Collaborators, The level of solar activity is high. Target region NOAA 13576 remained stable in terms of sunspot area and classification (as a beta-gamma-delta/F-type) since the last message, but may be showing signs of decay in its trailing spots. This region again produced several C-class flares and two M-class flares (an M6.5 and M1.1 on 12-Feb-2024 at 03:23 UT and 12:50 UT, respectively) which included the largest magnitude flare in the period. The MM#003 Major Flare Watch will continue with NOAA 13576 as its target region. Further M-class flares are likely over the next 24 hours, with a good chance for another >M5. The position of NOAA 13576 on 12-Feb-2024 at 15:00 UT is: S16W21 , ( 486", -174" ) 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 11 Feb '24

11 Feb '24

Dear Collaborators, Solar activity is at a high level. Target region NOAA 13576 grew slightly in terms of spot area since the last message, and continues to be a beta-gamma-delta/F-type sunspot group classification. This region again produced multiple C-class flares and an M9.0 flare on 10-Feb-2024 at 22:56 UT - the largest magnitude flare in the period. At this time we are initiating an MM#003 Major Flare Watch on NOAA region 13576. Additional M-class flares are expected over the following 24-hour period, with a good chance for another >M5 flare. The position of NOAA 13576 on 11-Feb-2024 at 16:30 UT is: S16W19 , ( 305", -164" ) 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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