MMmotd April 2013

mmmotd@solar.physics.montana.edu

1 participants
30 discussions

MM#009 Default HESSI Target
by Max Millennium Chief Observer 30 Apr '13

30 Apr '13

Dear RHESSI Collaborators, Solar activity is at a low level. NOAA 11730 emerged new magnetic flux since yesterday's message to develop a beta-gamma-delta/E-type sunspot classification and produce several C-class events (the largest being a C5.9 on 29-Apr-2013 at 20:22 UT). However, 11730 has shown considerable decay of the delta spot over the past 12 hours. NOAA 11731 shows signs of decay through fragmentation, with decreasing spot area coverage and increasing number of spots. This region has been reclassified by NOAA as a beta-gamma/E-type sunspot group and continues to be the source of C-class flares (the largest being a C3.9 on 29-Apr-2013 at 21:55 UT). Further C-class activity is expected, with a chance for an isolated low M-class event. The position of NOAA 11731 on 30-Apr-2013 at 12:00 UT is: N09E04, ( -72", 218" ) 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 (Trinity College Dublin)

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MM#009 Default HESSI Target
by Max Millennium Chief Observer 29 Apr '13

29 Apr '13

Dear RHESSI Collaborators, Solar activity is at a moderate level. Yesterday's target NOAA region 11731 has grown in number of spots while maintaining spot area coverage and a beta-gamma/D-type sunspot group classification. This region has continued to be active since yesterday's message and was the source of 11 C-class events in the past 24 hours, the largest of which was a C3.6 flare on 28-Apr-2013 at 18:00 UT. Further C-class activity is expected, with a chance for an isolated low M-class event. The position of NOAA 11731 on 29-Apr-2013 at 13:00 UT is: N09E18, ( -289", 217" ) 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 (Trinity College Dublin)

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

28 Apr '13

Dear RHESSI Collaborators, With NOAA 11726 now over the limb activity has returned to low levels. The new target region shall be NOAA 11731 located in the northeast quadrant. The region is classified as having a beta-gamma/D-type configuration and was the source of a C2.1 flare at 06:07 UT today. Further isolated low-level events possible. The position of NOAA 11731 on 28-Apr-2013 at 09:00 UT is: N09E32, ( -500", 210" ) 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 (QUB)

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

27 Apr '13

Dear RHESSI Collaborators, Solar activity remains elevated as NOAA 11726 rotates over the western limb. The region continues to produce C-level events and shall remain the target region for a further 24 hours. Additional C-class flares expected with chance for an isolated low M-class flare before west limb passage. The position of NOAA 11726 on 27-Apr-2013 at 09:00 UT is: N13W91, ( 928", 212" ) 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 (QUB)

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MM#009 Default HESSI Target
by Max Millennium Chief Observer 26 Apr '13

26 Apr '13

Dear RHESSI Collaborators, Solar activity remains at intermediate levels. NOAA 11726 has produced a range of C-class flares over the past 24 hours. The region continues to develop but is now on the western limb. Further C-level activity expected with chance of an isolated low M-class flare before west limb passage. The position of NOAA 11726 on 26-Apr-2013 at 06:00 UT is: N13W89, ( 928", 216" ) 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 (QUB)

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MM#009 Default HESSI Target
by Max Millennium Chief Observer 25 Apr '13

25 Apr '13

Dear RHESSI Collaborators, NOAA 11726 continues to increase in size but has begun to diminish in terms of complexity as it nears the western limb. The region has produced multiple C-class flares over the past 24 hours but has failed to produce a major event. We are ending the Major Flare Watch at this time but NOAA 11726 shall continue to be the target region. Further C-level activity expected with chance for an isolated low M-class flare. The position of NOAA 11726 on 25-Apr-2013 at 09:00 UT is: N13W68, ( 862", 242" ) 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 (QUB)

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MM#003 Major Flare Watch
by Max Millennium Chief Observer 24 Apr '13

24 Apr '13

Dear RHESSI Collaborators, The target region NOAA 11726 continues to develop and retains its beta-gamma-delta configuration. The largest flare since the last message was a C8.2 at 14:05 UT yesterday. The region has lost some of the shear around the delta spot but we shall continue with the Major Flare Watch for a further 24 hours as the possibility of an M5 flare or greater still remains. The position of NOAA 11726 on 24-Apr-2013 at 09:00 UT is: N13W54, ( 755", 260" ) 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 (QUB)

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MM#003 Major Flare Watch
by Max Millennium Chief Observer 23 Apr '13

23 Apr '13

Dear RHESSI Collaborators, The target region NOAA 11726 was the source of an M1.0 flare at 10:22 UT yesterday. Since then the region has grown to over 500 uh and is now harboring a large delta spot in its trailing portion. It has also begun to show signs of shearing and H-alpha brightening at the location of the delta. At this time we are implementing a Major Flare Watch due to the increased possibility of an M5 flare or greater over the next 24-48 hours. The position of NOAA 11726 on 23-Apr-2013 at 09:00 UT is: N13W40, ( 602", 275" ) 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 (QUB)

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MM#009 Default HESSI Target
by Max Millennium Chief Observer 22 Apr '13

22 Apr '13

Dear RHESSI Collaborators, Solar activity remains at the low C-level. NOAA 11726 continues to develop and is now classified as a beta-gamma-delta region due to some mixed polarity in the positive trailing spot. Flux emergence continues throughout the region with some sunspot merging in the trailing spot. Further C-class flares expected with chance for an isolated low M-class event. The position of NOAA 11726 on 22-Apr-2013 at 09:00 UT is: N12W27, ( 425", 270" ) 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 (QUB)

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

21 Apr '13

Dear RHESSI Collaborators, The target region NOAA 11726 has continued to develop and is now classified as a beta-gamma/E-type region. It has produced several low C-class flares since the last message including a C3.6 at 01:02 UT today. Further C-level activity expected. The position of NOAA 11726 on 21-Apr-2013 at 09:00 UT is: N13W10, ( 165", 296" ) 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 (QUB)

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MMmotd April 2013