MMmotd April 2012

mmmotd@solar.physics.montana.edu

1 participants
30 discussions

MM#009 Default HESSI Target
by Max Millennium Chief Observer 30 Apr '12

30 Apr '12

MM#009 Default HESSI Target Dear RHESSI Collaborators, The target region, NOAA 1471, was the source of a few C-class events since the last message. The largest was a C6.0 at 04/30/10:41 UT. The region's sunspot group is a simple C-type/beta but there is some minor mixed polarities within the large plage area. Another C-class event is possible with only a slight chance of an isolated M-class event in the next 24 hour period. The position of NOAA 1471 on April 30 at 11:00 UT is: S23E55 (Solar X = -720", Solar Y = -335") 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 29 Apr '12

29 Apr '12

MM#009 Default HESSI Target Dear RHESSI Collaborators, The target region, now numbered NOAA 1471, has rotated onto the visible disk. 1471 is still too close to the limb to ascertain it magnetic configuration but it appears that there is a tiny opposite polarity spot located within the penumbra of the large leading polarity umbra. A C-class event possible with a slight chance of an M-class event. The position of NOAA 1471 on April 29 at 13:00 UT is: S23E68 (Solar X = -814", Solar Y = -347") 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 28 Apr '12

28 Apr '12

MM#009 Default HESSI Target Dear RHESSI Collaborators, Target region continues to decay quietly. We'll switch to the new region rotating over the southeast limb. The new target region has bright plage and is displaying minor surging. It is too close to the limb to ascertain its magnetic configuration. C-class events possible in the next 24 hour period. The position of the target region on April 28 at 05:00 UT is: S23E80 (Solar X = -865", Solar Y = -360") 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 Apr '12

27 Apr '12

MM#009 Default HESSI Target Dear RHESSI Collaborators, NOAA 1465, continues to slowly decay but remains the most interesting region on the visible solar disk. 1465 produced a C2.4 event at 04/27/11:02 UT. The largest x-ray event of the period was an unexpected M1.1 event at 04/27/08:24 UT. Its source region was NOAA 1466 (N12W33). C-class events possible with a slight chance of an isolated M-class event in the next 24 hours. The position of NOAA 1465 on April 27 at 11:00 UT is: S18W45 (Solar X = 642", Solar Y = -244") 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 Apr '12

26 Apr '12

MM#009 Default HESSI Target Dear RHESSI Collaborators, NOAA 1465 is slowly and quietly decaying but is still the most interesting region on the visible solar disk. C-class events possible with a slight chance of an isolated M-class event in the next 24 hour period. The position of NOAA 1465 on April 26 at 13:00 UT is: S17W34 (Solar X = 511, Solar Y = -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, Bill Marquette (Helio Research)

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MM#009 Default HESSI Target
by Max Millennium Chief Observer 25 Apr '12

25 Apr '12

MM#009 Default HESSI Target Dear RHESSI Collaborators, NOAA 1465 is mostly unchanged maintaining an interesting "self-contained" sunspot group. Most of the region's umbrae are within a common penumbra but it is not a complex magnetic delta configuration because the opposite polarity umbrae are not within a distance of 1 heliographic degree. C-class events probable with a chance of an isolated M-class event in the next 24 hour period. The position of NOAA 1465 on April 25 at 13:00 UT is: S19W20 (Solar X = 309", 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 24 Apr '12

24 Apr '12

MM#009 Default HESSI Target Dear RHESSI Collaborators, NOAA 1465 increased its penumbral area. 1465 is a "self-contained" region with almost all umbrae within a single large penumba but the opposite polarities are too far apart to qualify as a complex magnetic delta configuration. C-class events expected with a chance of an isolated M-class event in the next 24 hour period. The position of NOAA 1465 on April 24 at 11:00 UT is: S18W07 (Solar X = 110", Solar Y = -219") 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 Apr '12

23 Apr '12

MM#009 Default HESSI Target Dear RHESSI Collaborators, NOAA 1465 developed significantly since the last message. 1465 added sunspot count, sunspot area, and magnetic complexity. The region is currently classified D-type/beta-gamma-delta. The target will switch from NOAA 1459 (S15W34) to 1465 today. C-class events certain with a good chance of an M-class event within the next 24 hour period. The position of NOAA 1465 on April 23 at 13:00 UT is: S18E06 (Solar X = -095", Solar Y = -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, Bill Marquette (Helio Research)

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MM#009 Default HESSI Target
by Max Millennium Chief Observer 22 Apr '12

22 Apr '12

MM#009 Default HESSI Target Dear RHESSI Collaborators, Target region NOAA 1459 is mostly unchanged. It was the source of two minor C-class events since the last message. NOAA 1465 also produced a C-class event. C-class events probable in the next 24 hours. The position of NOAA 1459 on April 22 at 13:00 UT is: S15W21 (Solar X = 331", Solar Y = -172") 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 Apr '12

21 Apr '12

MM#009 Default HESSI Target Dear RHESSI Collaborators, Target EFR, NOAA 1465, was the source of 6 C-class events since the last message. It has now stabilized with a beta magnetic configuration. We'll switch the target to NOAA 1459, S16W08. 1459 has added a few more spots and increased its magnetic complexity to beta-gamma. C-class events are possible with a slight chance of an isolated M-class event in the next 24 hour period. In addition to 1459, NOAA regions 1460,1462,1463, and 1465 have the potential to produce C-class events with a slight chance of an isolated M-class event. The position of NOAA 1459 on April 21 at 15:00 UT is: S16W08 (Solar X = 128", Solar Y = -183") 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 2012