MMmotd March 2023

mmmotd@solar.physics.montana.edu

1 participants
32 discussions

MM#003 Major Flare Watch
by Max Millennium Chief Observer 31 Mar '23

31 Mar '23

Dear Collaborators, The level of solar activity is moderate-to-low. Target region NOAA 13256 has rotated just over the North West limb and was classified as a beta/C-type sunspot group at the start of the UT day (but the classifications will have been severely impacted by foreshortening effects so close to the limb). NOAA 13256 has continued to produce C-class flares since the last message, while the largest magnitude flare in the period (a C4.4 on 31-Mar-2023 at 09:02 UT) came from the limb-exiting location of NOAA 13260. The current MM#003 Major Flare Watch on NOAA 13256 will continue for a further 24 hours as its high-lying loops remain in Earth-view. More C-class flares are expected over the following 24-hour period with a small chance for another >M5 flare. The position of NOAA 13256 on 31-Mar-2023 at 15:30 UT is: S22W90 , ( 890", -357" ) 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)

1 0

MM#003 Major Flare Watch
by Max Millennium Chief Observer 30 Mar '23

30 Mar '23

Dear Collaborators, Solar activity is at a high level. Target NOAA 13256 showed a decrease in sunspot area and longitudinal extent since the last message to be classified as a beta-gamma/E-type sunspot group, but the designations will have been affected by limb foreshortening to some degree. This region has continued to be flare productive, being the source of C-class flares and the largest flare in the period - a M5.4 on 30-Mar-2023 at 07:24 UT. The MM#003 Major Flare Watch that is on NOAA 13256 was successful in catching this >M5 flare and will continue to be in effect. Further C-class flares are expected in the next 24 hours, with a chance for another flare >M5 as NOAA 13256 rotates up to the West limb. The position of NOAA 13256 on 30-Mar-2023 at 15:00 UT is: S22W82 , ( 883", -343" ) 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)

1 0

MM#003 Major Flare Watch
by Max Millennium Chief Observer 29 Mar '23

29 Mar '23

Dear Collaborators, The level of solar activity is high. Target region NOAA 13256 grew in spot area and longitudinal extent since the last message, being reclassified as a beta-gamma/F-type sunspot group. This region has continued to be the most flare-productive region, being the source of multiple C-class flares and the largest flare in the period - a X1.2 on 29-Mar-2023 at 02:18 UT. At this point we are initiating a MM#003 Major Flare Watch on NOAA 13256. C-class flares are expected over the following 24-hour period, with a chance for another flare >M5 as NOAA 13256 rotates towards to the West limb. The position of NOAA 13256 on 29-Mar-2023 at 13:00 UT is: S22W69 , ( 833", -321" ) 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)

1 0

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

28 Mar '23

Dear Collaborators, Solar activity is at a low level. Target region NOAA 13256 has decayed slightly since the last message, but remained classed as a beta-gamma/E-type sunspot group. NOAA 13256 continued to produce C-class activity, being the source of 3 C-class flares including the largest in the period - a C3.5 on 27-Mar-2023 at 20:20 UT. Further C-class activity is expected in the next 24 hours. The position of NOAA 13256 on 28-Mar-2023 at 18:00 UT is: S23W53 , ( 710", -311" ) 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)

1 0

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

27 Mar '23

Dear Collaborators, The level of solar activity is low. Target NOAA 13256 has remained stable since the last message, continuing to be classified as a beta-gamma/E-type sunspot group. NOAA 13256 continued to produce flaring activity during the period, totaling 5 C-class events that includes the largest flare - a C4.6 on 27-Mar-2023 at 06:20 UT. Additional C-class flares are expected over the following 24-hour period. The position of NOAA 13256 on 27-Mar-2023 at 15:00 UT is: S23W53 , ( 710", -311" ) 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)

1 0

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

26 Mar '23

Dear Collaborators, Solar activity continues at a very low level. The largest event since the last message was a C2.6 flare at ~04:00 UT today from NOAA 13256 (S23W38). 13256 has increased in size and complexity, and is now classified as a beta-gamma/E-type region. Today the target shall switch to this region. The neighbouring regions NOAA 13257 (S27W18, alpha/H-type) and 13259 (S22W24, beta/C-type) also produced a few low C-class flares during the period. Please also include NOAA 13257 and 13259 in your field of view if possible. Further C-class activities are expected in the next 24 hours. The position of NOAA 13256 on 26-Mar-2023 at 11:30 UT is: S23W38 (546",-291") 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)

1 0

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

25 Mar '23

Dear Collaborators, Solar activity continues at a very low level. A series of low C-class and high B-class flares were produced by various regions during the period. The largest event in the period was a C2.2 flare at ~13:10 UT on 24-Mar-2023 from the target region NOAA 13259. 13259 grew slightly in terms of sunspot group and has been designated as a beta/C-type classification. Today the target will stay on this region. If possible, please also include the neighbouring NOAA 13257 (S27W08) and 13256 (S23W28) in your field of view. Additional low C-class flares are expected from various regions in the next 24-48 hours. The position of NOAA 13259 on 25-Mar-2023 at 16:30 UT is: S21W15 (233", -239") 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)

1 0

MM#009 Default Target
by Max Millennium Chief Observer 24 Mar '23

24 Mar '23

Dear Collaborators, Solar activity continues at a very low level. The largest event since the last message was a C1.7 flare at 06:04 UT today from the target region NOAA 13259. 13259 retains a beta/B-type classification and also produced a B9 flare in the period. NOAA 13259 shall continue as the target region for the next 24 hours. Please note that some other active regions, NOAA 13257 (S27E07), 13262 (S18E49), 13260 (N20E09) and a spotless region (S16E25) also produced several high B-class flares during the period. If possible, please also include NOAA 13257 in your field of view. More high B-class and low C-class activities are expected in the next 24 hours. The position of NOAA 13259 on 24-Mar-2023 at 12:30 UT is: S22W00 (0", -251") 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)

1 0

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

23 Mar '23

Dear Collaborators, Solar activity has continued at low levels since the last message. Yesterday's target region NOAA 13257 (S23E20, beta/C-type) was quiescent in the past 24 hours. The largest event was a C2.6 flare at 03/22/19:07 UT from NOAA 13259 (S22E13, beta/B-type), which also produced two C1 flares and one high B-class flare during the period. 13259 is emerging negative fluxes. Today the target shall switch to this region. If possible, please also include the neighbouring NOAA 13257 and 13256 (S22W00) in your field of view due to their closely connected magnetic loops. Further C-level activities are expected, with a slight chance for a low M-class flare over the next 24 hours. The position of NOAA 13259 on 23-Mar-2023 at 12:30 UT is: S22E13 (-201", -253") 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)

1 0

MM#009 Default Target
by Max Millennium Chief Observer 22 Mar '23

22 Mar '23

Dear Collaborators, Solar activity has been at a low level since the last message. Yesterday's target region NOAA 13256 (S23E12, beta/C-type) was quiescent during the period. The largest event was an impulsive C4.6 flare at 03/21/13:46 UT from NOAA 13257 (S28E33, alpha/H-type) which also produced another three low C-class flares in the period. Today the target shall switch to this region. The nearby region NOAA 13259 (S23E24, beta/B-type) also produced two C1 flares during the period. If possible, please also include NOAA 13259 and 13256 in your field of view. Further C-level flares are expected in the following 24 hours, with a slight chance for a low M-class flare. The position of NOAA 13257 on 22-Mar-2023 at 12:30 UT is: S28E33 (-464",-363") 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)

1 0

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

MMmotd March 2023