MMmotd December 2013

mmmotd@solar.physics.montana.edu

1 participants
30 discussions

MM#009 Default HESSI Target
by Max Millennium Chief Observer 21 Dec '13

21 Dec '13

Dear RHESSI Collaborators, The current level of solar activity is moderate. Yesterday's target (NOAA 11931) has remained quiescent since the previous message. On the other hand, NOAA 11928 released a series of C-class events, the largest of which was a C9.2 flare on 21-Dec-2013 at 10:36 UT. The region has emerged new flux in its intermediate portion, resulting in a strong gamma magnetic configuration, and shows multiple elongated polarity separation lines. Furthermore, the region exhibits a mixed polarity spot at its center. Further high C-class activity is expected, with a chance for an M-class flare. The position of NOAA 11928 on 21-Dec-2013 at 19:10 UT is: S17W42, ( 632", -265" ) 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, Paul Higgins (Trinity College Dublin/LMSAL)

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

20 Dec '13

Dear RHESSI Collaborators, The current level of solar activity is moderate. Yesterday's target (NOAA 11928) emerged further flux and shows a new highly sheared mixed polarity spot in its intermediate portion. The region was responsible for C-class activity including a C8.5 flare on 20-Dec-2013 at 15:33 UT. On the other hand, NOAA 11931 has rotated onto the East limb and was responsible for the two largest events of the previous 24 hours, a M3.5 flare on 19-Dec-2013 at 23:19 UT and a M1.6 flare on 20-Dec-2013 at 11:57 UT. While the magnetic configuration of NOAA 11931 is not as complex as NOAA 11928, its coronal structure did not appear significantly altered after the M-class flares, and so it may be capable of further significant activity. The target region is now designated as NOAA 11931. Further high C-class activity is expected with a chance for further low M-class events. The position of NOAA 11931 on 20-Dec-2013 at 18:45 UT is: S15E52, ( -741", -236" ) 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, Paul Higgins (Trinity College Dublin/LMSAL)

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

19 Dec '13

Dear RHESSI Collaborators, The current level of solar activity is low. A newly emerged region, designated as NOAA 11930, was responsible for low C-class activity. However, yesterday's target region (NOAA 11928) continued to emerge flux, and now exhibits a mixed polarity spot in its intermediate portion. So far, the region was responsible for C-class activity, including the largest event since the previous message (a C2.2 on 19-Dec-2013 at 15:35 UT). Further C-class activity is expected with a chance for a low M-class flare. The position of NOAA 11928 on 19-Dec-2013 at 18:10 UT is: S15W15, ( 245", -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, Paul Higgins (Trinity College Dublin/LMSAL)

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MM#009 Default HESSI Target
by Max Millennium Chief Observer 18 Dec '13

18 Dec '13

MM#009 Default HESSI Target Dear RHESSI Collaborators, The target EFR now numbered NOAA 1928 developed significantly and is currently the most complex region on the visible solar disk displaying a D-type/beta-gamma sunspot group. The largest event since the last message was a C4.0 at 12/17/23:29 UT. Its source was a region on the southeastern limb in the location of returning old NOAA 1913. The region is too close to the limb to ascertain its magnetic configuration. The position of NOAA 1928 on December 18 at 16:30 UT is: S15W02 (Solar X = 033", Solar Y = -230") 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 17 Dec '13

17 Dec '13

Dear RHESSI Collaborators, The current level of solar activity is low. The largest event since the previous message was a C3.1 flare on 16-Dec-2013 at 21:33 UT, released by NOAA 11927, a tiny bipole that emerged on the southern boundary of NOAA 11917. But, over all the region (11917 and 11927) continues to decay. A new region is rapidly emerging at ~S05E15, and appears to be growing in X-ray activity. The target region is now designated as the new region. Low C-class activity is expected, with a chance for a moderate C-class event. The position of the new region on 17-Dec-2013 at 18:10 UT is: S05E14, ( -237", -65" ) 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, Paul Higgins (Trinity College Dublin/LMSAL)

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MM#009 Default HESSI Target
by Max Millennium Chief Observer 16 Dec '13

16 Dec '13

Dear RHESSI Collaborators, The current level of solar activity is low. A partially occulted C1.5 flare occurred on over the east limb on 16-Dec-2013 at 01:14 UT. The source region will be monitored as it rotates onto the disk and its magnetic configuration becomes visible. Yesterday's target region (NOAA 11917) has continued to decay, and no longer exhibits any sign of mixed polarity spots. The region was responsible for C-class activity, including the largest event since the previous message, a C3.6 flare on 16-Dec-2013 at 03:44 UT. High B-class activity is expected with a chance for further low C-class activity. The position of NOAA 11917 on 16-Dec-2013 at 18:30 UT is: S15W47, ( 692", -240" ) 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, Paul Higgins (Trinity College Dublin/LMSAL)

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MM#009 Default HESSI Target
by Max Millennium Chief Observer 15 Dec '13

15 Dec '13

MM#009 Default HESSI Target Dear RHESSI Collaborators, Target region NOAA 1917 has increased its sunspot area, spot count, and magnetic complexity. The region is now classified D-type/beta-gamma-delta. A weak delta configuration is located in the northern intermediate portion of the sunspot group. C-class activity expected with a slight chance of an isolated M-class event in the next 24 hour period. The position of NOAA 1917 on December 15 at 16:30 UT is: S15W34 (Solar X = 528", Solar Y = -153") 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 14 Dec '13

14 Dec '13

MM#009 Default HESSI Target Dear RHESSI Collaborators, NOAA 1917 slowly developed since the last message. The region is maintaining its D-type/beta-gamma sunspot group. 1917 was the source a few C-class events. The largest was a C2.3 at 12/14/11:24 UT. Additional C-class activity is possible in the next 24 hours. The position of NOAA 1917 on December 14 at 16:30 UT is: S15W20 (Solar X = 323", 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 13 Dec '13

13 Dec '13

MM#009 Default HESSI Target Dear RHESSI Collaborators, Target region NOAA 1916 produced a limb occulted C1.7 event at 12/13/06:24. 1916 has completed west limb passage. The new target is NOAA 1917 a D-type/beta-gamma region with emerging flux located in its northern portion. 1917 was the source of a C4.8 event at 12/13/03:15 UT. Another C-class event possible in the next 24 hours. The position of NOAA 1917 on December 13 at 16:30 UT is: S15W06 (Solar X = 098", Solar Y = -241") 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 12 Dec '13

12 Dec '13

MM#009 Default HESSI Target Dear RHESSI Collaborators, The two largest events in the past 24 hours were produced by eruptive filaments. A C4.6 at 12/12/03:36 UT was associated with an eruptive filament located southeast of NOAA 1912 and the C3.4 event at 12/12/06:59 UT was associated with an eruptive filament located south of NOAA 1918 and southeast of NOAA 1917. Target region NOAA 1916 is still classified as an E-type/beta-gamma region. C-class events are possible before 1916 completes west limb passage. The position of NOAA 1916 on December 12 at 12:30 UT is: S12W85 (Solar X = 949", Solar Y = -201") 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 December 2013