MMmotd December 2024

mmmotd@solar.physics.montana.edu

1 participants
21 discussions

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

21 Dec '24

Dear Collaborators, Solar activity has been at a moderate-to-low level since the last message. The largest event was an M1.9 flare at 00:33 UT today from the South East portion of Yesterday's region NOAA 13928. This region has been newly numbered as NOAA 13932 and classified as a beta/D-type sunspot group as it completely rotated on disk over the South East limb. Today the target shall switch to 13932 (also with NOAA 13928 in the field of view). NOAA 13928 has increased its magnetic complexity to be classified as a beta-gamma/D-type magnetic configuration. Further C-class activity is expected, with a chance for an isolated low-M flare in the coming 24 hours. The position of NOAA 13932 on 21-Dec-2024 at 12:30 UT is: S18E55 (-761", -285") 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)

1 0

MM#009 Default Target
by Max Millennium Chief Observer 20 Dec '24

20 Dec '24

Dear Collaborators, Solar activity has continued at a moderate level since the last message. The target region NOAA 13928 produced the largest flare - an M2.5 flare at 11:15 UT today. This region retains a beta/D-type sunspot group, with the emergence of new negative magnetic fluxes in its intermediate portion. 13928 shall remain as the target. In addition, NOAA 13924 (beta-gamma/E-type, S19W89) also produced an M2.1 flare at 07:20 UT today. Further C-class activity is expected, with a good chance for additional low-M flares in the following 24 hours. The position of NOAA13928 on 20-Dec-2024 at 12:30 UT is: S14E53 (-757", -220") 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)

1 0

MM#009 Default Target
by Max Millennium Chief Observer 19 Dec '24

19 Dec '24

Dear Collaborators, Solar activity has increased to a moderate level since the last message. The target region has been numbered as NOAA 13928 and 13927 (S08E54, beta/D-type). 13928 was the most productive region and produced two low-M and a dozen C-class flares, with the largest being an M3.8 flare at 15:27 UT yesterday. It has been classified as a beta/D-type magnetic configuration. Today the target shall continue as 13928 (with NOAA 13927 in the field of view). Note that NOAA 13924 (beta-gamma/E-type, S18W83) was also the source of an M1.7 flare at 10:21 yesterday. Further C-class activity is expected, with a good chance for another low-M flare in the following 24 hours. The position of NOAA13928 on 20-Dec-2024 at 01:30 UT is: S15E65 (-800", -250") 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)

1 0

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

18 Dec '24

Dear Collaborators, Solar activity has increased to an intermediate level since the last message. The largest event was a C8.2 flare at 07:22 UT today from an unnumbered region near the South East limb. This region also produced seven ~C2-C6 flares and was the most productive region. It appears to be a (at least) bipolar sunspot group. Today the target shall switch to this limb region from NOAA 13917. 13917 has already rotated beyond the South West limb. Note that NOAA 13920 (N19W70) also produced two ~C3 flares. More low-C activities are expected, with another high-C flare very likely in the next 24 hours. The approximate position of the target on 18-Dec-2024 at 12:30 UT is: S16E89 (-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)

1 0

MM#009 Default Target
by Max Millennium Chief Observer 17 Dec '24

17 Dec '24

Dear Collaborators, Solar activity has dropped to a low level. The largest event since the last message was a partially occulted C4.5 flare at 01:22 UT today from the target region NOAA 13917. This region also produced five low-C flares and it has almost rotated beyond the South West limb, with its looptops visible in the EUV channel. Today the target shall remain at NOAA 13917 for the last 24 hours. Besides, some other regions (NOAAs 13924, 13922, 13925) also produced a few low-C flares. More C-class activity is expected, with a high-C flare probable in the coming 24 hours. The position of NOAA 13917 on 17-Dec-2024 at 12:30 UT is: S07W91 (967", -119") 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)

1 0

MM#009 Default Target
by Max Millennium Chief Observer 16 Dec '24

16 Dec '24

Dear Collaborators, Solar activity has returned to a moderate level in the past 24 hours, due to an M3.1 flare at 20:15 UT yesterday from NOAA 13920 (beta/E-type, N22W49). The target region NOAA 13917 has produced four C-class flares, with the largest being a C7.6 at 20:21 UT yesterday. It has been classified as a beta/D-type sunspot group as it transits to the South West limb. Further C-class activity is expected, with another low M-class flare likely in the coming 24 hours. The position of NOAA 13917 on 16-Dec-2024 at 12:30 UT is: S07W90 (967", -118") 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)

1 0

MM#009 Default Target
by Max Millennium Chief Observer 15 Dec '24

15 Dec '24

Dear Collaborators, Solar activity has decreased since the last message. The largest event in the period was a C8.3 flare at 10:50 UT today produced by the target region NOAA 13917 (S07W77, beta-gamma/D-type), which also produced another several C-class flares. Today, NOAA 13917 shall remain the target region. Additionally, NOAA 13916 (S15W89) and 13924 (S19W23) produced several C-class flares in the period, including a C7.3 and a C6.0, respectively. Further C-class activity is expected, with a chance of low M-class flares in the next few days. The position of NOAA 13917 on December 15 at 12:30 UT is: S07W77 (943",-115") 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 (Purple Mountain Observatory)

1 0

MM#009 Default Target
by Max Millennium Chief Observer 14 Dec '24

14 Dec '24

Dear Collaborators, Solar activity has continued at a moderate level since the last message. The largest events in the period were two M1.0 flares, produced by NOAA 13917 (S08W61) and yesterday's target NOAA 13922 (S18E17), respectively. 13922 produced another two low C-class flares in the period, while 13917 was the most flare-productive region on the disk, which produced another 11 C-class flares in the period. 13917 retains a beta- gamma-delta configuration. Today, the target region shall switch to NOAA 13917 due to its activity history and magnetic complexity. Further C-class and additional low M-class flares are expected in the next 24 hours. The position of NOAA 13917 on December 14 at 08:30 UT is: S08W61 (845",-128") 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 (Purple Mountain Observatory)

1 0

MM#009 Default Target
by Max Millennium Chief Observer 13 Dec '24

13 Dec '24

Dear Collaborators, Solar activity has been at a moderate level. Yesterday's target NOAA 13920 (N22W09) retains a beta-delta/E-type configuration but has produced only two low C-class flares since the last message. The most flare-productive region on the disk was NOAA 13922 (S18E29, beta/C-type), which was the source of three low M-class and four C-class flares in the period, including the largest one - an M2.2 at 17:31 UT yesterday (12/12). Today the target region shall switch to NOAA 13922 due to its activity history. Please note that NOAA 13917 (S08W49) has now developed into a beta-gamma-delta configuration and also produced a low M-class flare (M2.0 at 11:13 UT today) in the period. Additional low M-class flares are expected in the next 24 hours. The position of NOAA 13922 on December 13 at 12:30 UT is: S18E29 (-450",-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 (Purple Mountain Observatory)

1 0

MM#009 Default Target
by Max Millennium Chief Observer 12 Dec '24

12 Dec '24

Dear Collaborators, Solar activity is now at a low C-level. The largest event since the last message was an M6.7 flare at 15:32 UT yesterday (12/11) produced by NOAA 13912, which has completely rotated over the west limb. The target region NOAA 13920 (N22E05) was flare-quiet in the period but has now developed into a beta-delta/E-type configuration with a sunspot area of 250 μh. At this time, we are ending the Major Flare Watch campaign, but NOAA 13920 shall remain the target region due to its activity history and magnetic complexity. Additionally, several low C-class flares were produced by NOAA 13922 (S18E43, beta/C-type) and 13917 (S08W33, beta-gamma/D-type). Further C-class activity is expected, with a chance of low M-class flares in the next 24 hours. The position of NOAA 13920 on December 12 at 08:30 UT is: N22E05 (-79",375") 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 (Purple Mountain Observatory)

1 0

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

MMmotd December 2024