MMmotd February 2013

mmmotd@solar.physics.montana.edu

1 participants
28 discussions

MM#009 Default HESSI Target
by Max Millennium Chief Observer 28 Feb '13

28 Feb '13

MM#009 Default HESSI Target Dear RHESSI Collaborators, Solar flare activity is very low. The largest x-ray event since the last message was a B7.9 at 02/28/16:01 UT produced by NOAA 1682. 1682 added penumbral area in the past 24 hours but remains a magnetically simple D-type/beta region. B-class events expected with the chance of a C-class event in the next 24 hour period. The position of NOAA 1682 on February 28 at 14:00 UT is: S18W25 (Solar X = 390", Solar Y = -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, Bill Marquette (Helio Research)

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MM#009 Default HESSI Target
by Max Millennium Chief Observer 27 Feb '13

27 Feb '13

MM#009 Default HESSI Target Dear RHESSI Collaborators, NOAA 1682 increased its sunspot area and spot count but lost its weak beta-gamma magnetic configuration. It is now a simple D-type/beta region. 1682 was the source of the largest x-ray event (B8.3 at 02/27/03:22 UT) since the last message. Additional B-class activity expected with the chance of a C-class event in the next 24 hours. There is a new region rotating over the southeastern limb at S18 that produced a B5.6 event yesterday. The position of NOAA 1682 on February 27 at 14:00 UT is: S18W11 (Solar X = 176", Solar Y = -184") 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 Feb '13

26 Feb '13

MM#009 Default HESSI Target Dear RHESSI Collaborators, The target EFR is now numbered NOAA 1682. 1682 is continuing in growth phase displaying bright H-alpha plage and an arch-type filament system. The region currently has a D-type sunspot group with a weak beta-gamma magnetic configuration. 1682 was the source of B-class activity in the past 24 hours. The largest was a B4.3 at 02/26/08:12 UT. Additional B-class events expected with the chance of a C-class event in the next 24 hours. If rapid development continues there is a chance of an isolated M-class event as well. The position of NOAA 1682 on February 26 at 14:00 UT is: S18E03 (Solar X = -048", Solar Y = -187") 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 Feb '13

25 Feb '13

MM#009 Default HESSI Target Dear RHESSI Collaborators, The target region (old NOAA 1665) is in decay phase and quiescent. The target will switch to an EFR located in the southeastern quadrant. This region has bright H-alpha plage and a well developed arch-type filament system. It currently has a simple beta magnetic classification. If development continues, B-class events are probable with a chance of a C-class event in the next 24 hours. The most significant event in the past 24 hours was a very long duration limb occulted B7.9 event and associated CME produced by NOAA 1678 now located well beyond the northwestern limb. The position of the EFR target on February 25 at 14:00 UT is: S18E16 (Solar X = -255", Solar Y = -188") 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 Feb '13

24 Feb '13

MM#009 Default HESSI Target Dear RHESSI Collaborators, NOAA 1678 has completed west limb passage. 1678 was the source B- and C-class activity since the last message. The largest event was a C4.7 at 02/23/16:09 UT. The new target region will be the return of old NOAA 1665 rotating over the northeastern limb. It is too close to the limb to ascertain its magnetic configuration. B-class events probable with the chance of a C-class event in the next 24 hour period. The position of the target on February 24 at 14:00 of UT is: N15E88 (Solar X = -937", Solar Y = 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, Bill Marquette (Helio Research)

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MM#009 Default HESSI Target
by Max Millennium Chief Observer 23 Feb '13

23 Feb '13

MM#009 Default HESSI Target Dear RHESSI Collaborators, NOAA 1678 is now rotating over the west limb. It was the source of several B-class events since the last message. The largest was a B9.0 at 02/22/20:59 UT. B-class activity is probable with a chance of a C-class event in the next 24 hours. The position of NOAA 1678 on February 23 at 14:00 UT is: N10W88 (Solar X = 953", Solar Y = 171") 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 Feb '13

22 Feb '13

MM#009 Default HESSI Target Dear RHESSI Collaborators, NOAA 1678 continues to slowly decay as it approaches the west limb but is still maintaining its beta-gamma magnetic configuration. 1678 was the source of one B-class event and one C1.0 event in the past 24 hours. C-class activity probable and there remains a chance of an isolated M-class event in the next 24 hour period. The position of NOAA 1678 on February 22 at 14:00 UT is: N11W75 (Solar X = 920", Solar Y = 214") 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 21 Feb '13

21 Feb '13

MM#009 Default HESSI Target Dear RHESSI Collaborators, NOAA 1678 was the source of minor C- and B-class events since the last message. Polarity mixing within the region's intermediate portion has decreased significantly in the past few days but 1678 is maintaining an E-type/beta-gamma sunspot group. Additional C-class events expected with a chance of an isolated M-class event in the next 24 hour period. The position of NOAA 1678 on February 21 at 14:00 UT is: N11W62 (Solar X = 842", Solar Y = 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, Bill Marquette (Helio Research)

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MM#009 Default HESSI Target
by Max Millennium Chief Observer 20 Feb '13

20 Feb '13

MM#009 Default HESSI Target Dear RHESSI Collaborators, NOAA 1678 was the source of a C8.2 event at 02/20/11:11 UT. It is currently displaying bright H-alpha plage and a D-type sunspot group with a beta-gamma-delta magnetic configuration. The weak delta is located within the region's intermediate portion. C-class events expected with the chance of an isolated M-class event in the next 24 hours. The position of NOAA 1678 on February 20 at 14:00 UT is: N10W48 (Solar X = 711", Solar Y = 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, Bill Marquette (Helio Research)

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MM#009 Default HESSI Target
by Max Millennium Chief Observer 19 Feb '13

19 Feb '13

MM#009 Default HESSI Target Dear RHESSI Collaborators, The EFR mentioned yesterday is now numbered NOAA 1678. 1678 developed rapidly in the past 24 hours and was the source of two C-class events. The largest was a C2.2 at 02/19/10:51 UT. The region currently has a D-type/beta-gamma sunspot group with bright plage and a well developed arch-type filament system and appears to be forming a magnetic delta configuration within its intermediate portion. C-class activity expected with the chance of an isolated M-class event in the next 24 hour period. The position of NOAA 1678 on February 19 at 14:00 UT is: N10W34 (Solar X = 536", Solar Y = 264") 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 February 2013