MMmotd May 2021

mmmotd@solar.physics.montana.edu

1 participants
31 discussions

MM#009 Default Target
by Max Millennium Chief Observer 31 May '21

31 May '21

Dear Collaborators, Solar activity continues at low levels with NOAA 12824 now beyond the western limb. The new target region shall be NOAA 12827 in the northeast quadrant. The region has produced several B-class flares since the last message, including a B7.7 flare at 05:34 UT today. It is classified as a beta/C-type region, and is expected to produce further low-level activity over the next 24 hours with change of an isolated C-level event. The position of NOAA 12827 on 31-May-2021 at 11:30 UT is: N11E22, ( -349", 192" ) 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, Ryan Milligan (Queen's University Belfast)

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MM#009 Default Target
by Max Millennium Chief Observer 29 May '21

29 May '21

Dear Collaborators, The target region NOAA 12824 was the source of three low B-class flares since the last message. 12824 has decayed to a beta/C-type region. It is almost rotating over the west limb. We will watch this region for a further (maybe final) 24 hours. Please note that there was a newly emerged region in the northeast quadrant, numbered as NOAA 12827 (N11E42) with a beta/B-type configuration. B-class activities are expected with a chance of C-class events in the next 24 hours. The position of NOAA 12824 on May 30 at 03:30 UT is: N18W81 (889", 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, Ying Li (Purple Mountain Observatory)

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MM#009 Default Target
by Max Millennium Chief Observer 29 May '21

29 May '21

Dear Collaborators, NOAA 12826 produced four low C-class flares plus a few B-class flares since the last message. 12826 has rotated over the west limb. Today the target will switch back to NOAA 12824 which produced the largest event of the period, a C9.4 flare at 05/28 22:19 UT. This C9.4 flare was associated with a prominent CME. 12824 remains its beta/ D-type configuration. Additional C-class flares are probable with a very slight chance of an M-class flare in the next 24 hours. The position of NOAA 12824 on May 29 at 07:30 UT is: N19W72 (851", 313") 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 27 May '21

27 May '21

Dear Collaborators, The target region NOAA 12826 was the source of numerous B-class flares in the past 24 hours, the largest one being a B9.8 at 05/27/07:58 UT. 12826 had a beta/D-type configuration and is rotating over the west limb. We will watch this region for a further 24 hours. The other region with sunspots on the visible disk, NOAA 12824 (N20W57), produced two C-class flares in the past few hours, a C1.0 and a C7.6 (at 05/27/22:54 UT). 12824 was reclassified as a beta/D-type region. If possible, please also include 12824 in your field of view. Additional C-class activities are expected with a slight chance of a low M-class flare in the following 24 hours. The position of NOAA 12826 on May 28 at 03:30 UT is: N24W76 (839", 389") 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 26 May '21

26 May '21

Dear Collaborators, The target region NOAA 12826 was the source of numerous B- and C-class events, the largest one being a C3.8 at 05/26/21:17 UT. 12826 has been classified as a beta/D-type region with increasing its sunspot area significantly. If possible, please also include NOAA 12824 (N20W43, the previous target) in your field of view. 12824 also produced a C1.6 flare during the period. Additional C-class activities are expected with a light chance of a low M-class event in the next 24 hours. The position of NOAA 12826 on May 27 at 03:30 UT is: N24W62 (764", 394") 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 26 May '21

26 May '21

Dear Collaborators, Yesterday's target NOAA 12824 (N20W29) was downgraded to a beta/C-type region. It only produced three low B-class flares in the past 24 hours. Today the target will switch to the newly emerged region as mentioned in the last message. This region has been designated as NOAA 12826 with a beta/C-type configuration. 12826 has produced nine B-class flares, the largest one being a B9.5 at 05:01 UT today. More B-class activities are expected with a good chance of C-class events in the next 24 hours. The position of NOAA 12826 on May 26 at 03:30 UT is: N24W49 (654", 399") 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 25 May '21

25 May '21

Dear Collaborators, The target region NOAA 12824 only produced a few low B-class flares in the past 24 hours. 12824 retains its beta-gamma/C-type magnetic configuration. It shows mixed polarities in its leading portion. Please note that there rapidly emerged a new region in the west of 12824, which appears some spots. B-class flares are expected with a good chance of C-class flares in the next 24 hours. The position of NOAA 12824 on May 25 at 07:30 UT is: N19W17 (262", 331") 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 24 May '21

24 May '21

Dear Collaborators, The target region NOAA 12824 has produced only a C2.2 (at 05/23/17:00 UT) and a few low B-class flares since the last message. 12824 maintains its beta-gamma/ C-type configuration. It continues to show some dynamic surges (or small eruptions) in H-alpha images in its leading portion. Additional C-class flares are expected with a slight chance of a low M-class event in the next 24 hours. The position of NOAA 12824 on May 24 at 07:30 UT is: N19W04 (62", 334") 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 23 May '21

23 May '21

MM#009 Default Target Dear Collaborators, Target region NOAA 2824 continues to be active producing numerous C-class events and 2 M-class events since the last message (M1.4 at 05/22/21:36 and M1.1 at 05/23/11:08 UT). 2824 is mostly unchanged maintaining its beta-gamma magnetic configuration with small opposite negative polarity satellite spots located adjacent to the region's main positive polarity leading sunspot. C-class events expected with another M-class event likely. There is a chance for a >M1 event in the next 24 hour period if new negative polarity satellite spots develop. The position of NOAA 2824 on May 23 at 14:45 UT is: N20E05 (Solar X = -078", Solar Y = 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, Bill Marquette (Helio Research)

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MM#009 Default Target
by Max Millennium Chief Observer 22 May '21

22 May '21

MM#009 Default Target Dear Collaborators, Target region NOAA 2824 was the source of numerous B- and C-class events and an isolated M1.1 event at 05/22/17:11 UT. Several small negative polarity spots emerged encircling the positive polarity main leading sunspot since the last message. 2824 now has a beta-gamma magnetic configuration. C-class events expected with another isolated M-class event likely. If the surrounding negative polarity satellite spots continue to develop, >M1-class events are possible. The position of NOAA 2824 on May 22 at 14:00 UT is: N20E22 (Solar X = -335", Solar Y = 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, Bill Marquette (Helio Research)

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MMmotd May 2021