MMmotd August 2017

mmmotd@solar.physics.montana.edu

1 participants
30 discussions

MM#009 Default HESSI Target
by Max Millennium Chief Observer 31 Aug '17

31 Aug '17

Dear RHESSI Collaborators, The largest event since the last message was a C5.2 at 18:38 UT on August 30 produced by the target region NOAA 12674. 12674 was also the source of a C1.3 and a few high B-class events. 12674 has been designated as a beta/E-type magnetic classification, increasing in sunspot area and number of spots. More B- and C-class flares are expected in the following 24 hours. The position of NOAA 12674 on August 31 at 07:30 UT is: N14E60 (-800", 170") 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 (Nanjing University / Montana State University)

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MM#009 Default HESSI Target
by Max Millennium Chief Observer 30 Aug '17

30 Aug '17

Dear RHESSI Collaborators, Yesterday's target region has been designated as NOAA 12674, which has a beta/D-type magnetic configuration. 12674 produced numerous B-class as well as three low C-class flares (the largest being two C1.3) in the past 24 hours. It appears to be in a growth phase. Additional B- and C-class activities are expected in the next 24-hour period. The position of NOAA 12674 on August 30 at 07:30 UT is: N11E66 (-853", 132") 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 (Nanjing University / Montana State University)

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MM#009 Default HESSI Target
by Max Millennium Chief Observer 29 Aug '17

29 Aug '17

Dear RHESSI Collaborators, Solar activity has increased since the last message. A new region (unnumbered yet) near the northeastern limb is rotating onto the visible disk. It produced numerous high B-class events as well as three low C-class flares (the largest being a C2.8 at 02:55 UT on August 29) in the past 24 hours. Today we will switch the target to this new region. Further B- and C-class limb events are expected in the next 24 hours. The approximate position of the target on August 29 at 07:30 UT is: N15E88 (-890", 280") 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 (Nanjing University / Montana State University)

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MM#009 Default HESSI Target
by Max Millennium Chief Observer 28 Aug '17

28 Aug '17

Dear RHESSI Collaborators, Solar activity has been at a very low level. The largest event since the last message was a B3.5 at 17:46 UT on August 27 produced by a region beyond the southeastern limb. The target region NOAA 12671 has been flare quiet. It is almost rotating over the western limb with overlying loops visible. We will watch this region for a final 24 hour period. NOAA 12672 (N07W24) produced a B1.6 at 00:53 UT on August 28 and continues to decay. Low level activities are expected in the next 24 hours. The position of NOAA 12671 on August 28 at 07:30 UT is: N13W91 (924", 213") 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 (Nanjing University / Montana State University)

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MM#009 Default HESSI Target
by Max Millennium Chief Observer 27 Aug '17

27 Aug '17

MM#009 Default HESSI Target Dear RHESSI Collaborators, The activated dark filament in target region NOAA 2672 (N07W15, E-type/beta) mentioned in the message yesterday became destabilized and erupted around 20:45 UT and was associated with a weak double ribbon flare and a B5.4 event at 08/26/21:00 UT. The largest event since the last message was a limb occulted C6.3 at 08/27/15:16 UT produced by NOAA 2671 located on the northwestern limb. 2672 continues in decay phase. The target will switch to 2671. Another C-class limb event is possible in the next 24 hours. The position of NOAA 2671 on August 27 at 13:30 UT is: N14W91 (Solar X = 920", Solar Y = 229") 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 HESSI Target
by Max Millennium Chief Observer 26 Aug '17

26 Aug '17

MM#009 Default HESSI Target Dear RHESSI Collaborators, Target region NOAA 2672 (N07W02, E-type/beta-gamma) and NOAA 2671 (N13W77, F-type/beta-gamma) produced minor B-class events since the last message. 2672 continues to decay and 2671 is displaying new small negative polarity spots emerging just west of the main positive polarity trailing sunspot. 2672 has a well-defined somewhat active dark filament located along its magnetic inversion line. 2672 and 2671 are expected to be the source of B-class events with another C-class event possible in the next 24 hours. The position of NOAA 2672 on August 26 at 15:00 UT is: N07W02 (Solar X = 033", Solar Y = -001") 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 HESSI Target
by Max Millennium Chief Observer 25 Aug '17

25 Aug '17

MM#009 Default HESSI Target Dear RHESSI Collaborators, Target region NOAA 2672 (N07E13, E-type/beta-gamma) and NOAA 2671 (N11W64, E-type/beta-gamma) are slowly decaying. Both regions produced minor B-class events and 2672 was the source of an isolated C5.5 event at 08/25/07:27. Both regions have the potential to produce B-class activity and another C-class event is possible in the next 24 hours. The position of NOAA 2672 on August 25 at 13:40 UT is: N07E13 (Solar X = -212", Solar Y = 002") 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 HESSI Target
by Max Millennium Chief Observer 24 Aug '17

24 Aug '17

MM#009 Default HESSI Target Dear RHESSI Collaborators, Target region NOAA 2672 and NOAA 2671 produced C- and B-class events since the last message. The largest C-class event was a C3.0 at 08/24/00:37 UT produced by NOAA 2671. 2671 continues to decay especially within its trailing portion. 2672 is mostly unchanged. Both regions are likely to be the source of B- and C-class events in the next 24 hour period. The position of NOAA 2672 on August 24 at 13:30 UT is: N08E26 (Solar Y = -413", Solar Y = 027") 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 HESSI Target
by Max Millennium Chief Observer 23 Aug '17

23 Aug '17

MM#009 Default HESSI Target Dear RHESSI Collaborators, NOAA regions 2671 and 2672 are continuing to decay. 2671 has had a significant loss of sunspot count and area and 2672 has lost its magnetic delta configuration. Both regions produced numerous B- and C-class events since the last message. Target region NOAA 2672 was the source of the largest event (C2.2 at 08/23/13:42 UT). B-class events expected and a C-class event probable from the target region and B-class events probable with the chance of another C-class event from 2671 (N10W39) in the next 24 hour period. The position of NOAA 2672 on August 23 at 13:30 UT is: N08E39 (Solar X = -593", Solar Y = 042") 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 HESSI Target
by Max Millennium Chief Observer 22 Aug '17

22 Aug '17

MM#009 Default HESSI Target Dear RHESSI Collaborators, NOAA 2671 (N11W26) was the source of numerous B- and C-class events since the last message but target region, NOAA 2672, was the source of the largest event of the period (C3.0 at 08/21/17:57 UT). Both regions are somewhat decaying but 2671 is still maintaining its large F-type/beta-gamma sunspot group and 2672 is still an E-type/beta-gamma-delta group.The magnetic delta configuration is located within the trailing portion. At this time we will continue to target 2672 for at least the next 24 hour period. B- and C-class events expected with a slight chance of an isolated M-class event in the next 24 hours with also a chance of B- and C-class activity from 2671. The position of NOAA 2672 on August 22 at 16:00 UT is: N07E52 (Solar X = -744", Solar Y = 045") 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 August 2017