MMmotd April 2022

mmmotd@solar.physics.montana.edu

1 participants
30 discussions

MM#009 Default Target
by Max Millennium Chief Observer 30 Apr '22

30 Apr '22

Dear Collaborators, The level of solar activity is moderate. The target unspotted region that was previously designated as NOAA 12996 has been inactive since the last message. NOAA regions 12993 and 12994 have now rotated over the North West limb. NOAA 12994 produced multiple C-class flares and several M-class flares since the last message, the largest being an M4.8 on 30-Apr-2022 at 09:48 UT. The target now switches back to the limb-crossing location of NOAA 12994 due to the heightened flaring activity of this region and the potential for large-magnitude flares being foot-point occulted by the limb. Additional C-class flares are expected over the following 24-hour period, with a small chance for another M-class flare. The limb-crossing position of NOAA 12994 on 30-Apr-2022 at 13:30 UT is: N15W90 , ( 919", 246" ) 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 29 Apr '22

29 Apr '22

Dear Collaborators, Solar activity is at a low-to-moderate level. The target regions NOAA 12993 and 12994 have rotated up to the North West limb and once again only NOAA 12994 produced flares since the last message, being a series of low C-class events. The largest magnitude flare in the period was a M1.2 on 29-Apr-2022 at 07:15 UT, once again originating from the now unspotted region that was previously designated as 12996. The target will switch to this unspotted region due to the further decay of NOAA 12993/12994 and the continued flaring of the unspotted region. Further C-class flares are expected in the next 24 hours, with a chance for a low M-class flare. The approximate position of this region (previously designated as NOAA 12996) on 29-Apr-2022 at 13:00 UT is: N25W46 , ( 622", 448" ) 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 28 Apr '22

28 Apr '22

Dear Collaborators, The level of solar activity is low. The target regions NOAA 12993 and 12994 have continued to decay since the last message and were classed as alpha/H-type and beta/C-type sunspot groups, respectively, at the beginning of the UT day. This pair of regions are rotating up to the North West limb, and once again only NOAA 12994 has produced flares since the last message (C1.1, C1.7 and C2.1 flares on 28-Apr-2022 at 01:27 UT, 04:10 UT and 11:29 UT, respectively). Similar to yesterday, a higher magnitude flare was observed from another region (a C6.7 on 28-Apr-2022 at 02:24 UT from the now unspotted 12996), but the target will remain with NOAA regions 12993/12994 due to their prior flaring history and the advanced decay stage of the previous NOAA 12996. More C-class flares are expected over the following 24-hour period. The position of NOAA 12993/12994 on 28-Apr-2022 at 11:30 UT is: N17W73 , ( 872", 299" ) 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 27 Apr '22

27 Apr '22

Dear Collaborators, Solar activity is at a low level. The target regions NOAA 12993 and 12994 continued to decay further and were classified as beta/C-type and beta-gamma/E-type sunspot groups, respectively, at the start of the UT day. This pair of regions are now approaching the North West limb, with only NOAA 12994 producing any flaring activity since the last message (a C1.3 flare on 27-Apr-2022 at 03:59 UT). A couple of higher magnitude flares were observed from other regions (a C7.7 on 27-Apr-2022 at 14:15 UT from NOAA 12996 being the largest), but the target will remain with NOAA regions 12993/12994 due to their past flaring history. Further C-class flares are expected in the next 24 hours, with a small chance of a low M-class flare. The position of NOAA 12993/12994 on 27-Apr-2022 at 22:30 UT is: N17W66 , ( 833", 307" ) 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 26 Apr '22

26 Apr '22

Dear Collaborators, The level of solar activity is low. The target regions NOAA 12993 and 12994 furthered their decay and decreased in magnetic complexity to be designated as beta-gamma/C-type and beta-gamma/E-type sunspot groups, respectively. NOAA 12993 decayed the most out of the two and also produced two C-class flares (a C4.8 on 25-Apr-2022 at 20:38 UT and a C2.1 on 26-Apr-2022 at 09:50 UT). Additional C-class activity is expected over the following 24-hour period with a small chance of another low M-class flare. The position of NOAA 12993/12994 on 26-Apr-2022 at 19:00 UT is: N17W51 , ( 710", 325" ) 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 25 Apr '22

25 Apr '22

Dear Collaborators, Solar activity is at a moderate level. The target regions NOAA 12993 and 12994 stabilised in their decay since the last message and were classed as a beta-gamma-delta/D-type and a beta-gamma/E-type sunspot groups, respectively. NOAA 12994 produced a couple of C-class events and NOAA 12993 produced additional M-class activity in the form an M1.2 flare and an M1.1 flare on 25-Apr-2022 at 01:18 UT and 03:52 UT, respectively. C-class activity is expected in the next 24 hours with further low M-class flares possible, while there continues to be a small chance of a >=M5 flare also. The position of NOAA 12993/12994 on 25-Apr-2022 at 18:00 UT is: N17W37 , ( 550", 339" ) 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 24 Apr '22

24 Apr '22

MM#009 Default Target Dear Collaborators, The active region complex target NOAA regions 2993/2994 were the source of numerous minor C-class events since the last message. The largest was a C3.7 at 04/24/04:12 UT. The flare was within the opposite polarity fields located just north of the large leading sunspot in 2993 (D-type/beta-gamma). This area is now decaying. 2994 has an EFR within its intermediate sunspot group slightly increasing its magnetic complexity. 2994 is now classified as having an E-type/beta-gamma sunspot group. C-class events expected, M-class event possible with a very slight chance of a major flare =>M5 in the next 24 hour period.. The position of NOAA 2993/2994 on April 24 at 14:45 UT is: N17W22 (Solar X = 343", Solar Y = 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, Bill Marquette (Helio Research)

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

23 Apr '22

MM#009 Default Target Dear Collaborators, The target regions NOAA 2993 (D-type/beta-gamma) and 2994 (E-type/beta) are now decaying. The regions were the source of only a few minor C-class events since the last message. The opposite polarity spots located north of the large leading sunspot in region 2993 are still present but are weakening. It is still the most likely site for flares (N21W13, X= 201", Y = 417"). 2994 has lost all of its mixed polarities. There is only a very slight chance of an event =>M5. At this time, we will terminate the MFW. C-class events expected with the chance of an isolated M-class event in the next 24 hour period. The position of NOAA 2993/2994 on April 23 at 14:00 UT is: N19W09 (Solar X = 142", Solar Y = 387") 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#003 Major Flare Watch
by Max Millennium Chief Observer 22 Apr '22

22 Apr '22

MM#003 Major Flare Watch Dear Collaborators, The target regions NOAA 2993/2994 produced two M-class events since the last message. Both regions have beta-gamma magnetic configurations. 2994 was the source of the M1.1 at 04/22/05:14 UT. 2993 was the source of the M3.4 at 04/22/13:25 UT. The two regions also produced several C-class events. 2993 is the most likely source for M-class activity. There is an area of mixed polarity fields located just north of the region's large leading sunspot (N21W01, X = 015", Y = 420"). Another M-class event likely with a chance of an isolated =>M5 major flare event in the next 24 hour period. The position of NOAA 2993/2994 on April 22 at 14:45 UT is: N19E05 (Solar X = -079", Solar Y = 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, Bill Marquette (Helio Research)

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MM#003 Major Flare Watch
by Max Millennium Chief Observer 21 Apr '22

21 Apr '22

MM#003 Major Flare Watch Dear Collaborators, The southwestern limb target that was the source of the X2.2 event yesterday did not produce any noteworthy events in the past 24 hours. The target will switch back to the large active region complex (NOAA regions 2993 and 2994). 2993 was the source of a strong M9.6 event at 04/21/01:59 UT. The flare location was in mixed polarity just north of the large leading sunspot. 2994 has mixed polarity located within its intermediate portion. Both regions are maintaining E-type/beta-gamma sunspot groups. Additional M-class events likely with the chance of a major flare =>M5 in the next 24 hour period.. The position of NOAA 2993/2994 on April 21 at 10:45 UT is: N18E20 (Solar X = -312", Solar Y = 371") 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 April 2022