MMmotd October 2013

mmmotd@solar.physics.montana.edu

1 participants
33 discussions

MM#009 Default HESSI Target
by Max Millennium Chief Observer 31 Oct '13

31 Oct '13

MM#009 Default HESSI Target Dear RHESSI Collaborators, NOAA 1884 was the source of a C1.0 event at 10/31/06:51 UT. The largest x-ray event in the past 24 hours was a M1.9 at 10/31/13:51 UT - its source region was NOAA 1877 now located just beyond the southwestern limb at S10. 1884 is maintaining an E-type/beta-gamma-delta sunspot group. The delta configuration appears to be weakening. C-class events probable with the chance of an isolated M-class event in the next 24 hours. The position of NOAA 1884 on October 31 at 14:00 UT is: S11E16 (Solar X = -262", Solar Y = -255") 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 30 Oct '13

30 Oct '13

MM#009 Default HESSI Target Dear RHESSI Collaborators, Solar flare activity has been at a low level since the X2 event produced by default target region NOAA 1875 yesterday. The background x-ray flux is currently flat at the B5 level. 1875 has completed west limb passage. The new target is NOAA 1884. 1884 is currently classified as an E-type region with a beta-gamma-delta magnetic configuration. C-class events are possible with the chance of an isolated M-class event in the next 24 hours. The position of NOAA 1884 on October 30 at 20:30 UT is: S13E26 (Solar X = -414", Solar Y = -284") 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#003 Major Flare Watch
by Max Millennium Chief Observer 29 Oct '13

29 Oct '13

Dear RHESSI Collaborators, The current solar activity level is high. Today's target region (NOAA 11875) has just released a limb-occulted X2.3 flare on 29-oct-2013 at 21:54 UT. A major flare watch is now in effect. A further >M5 flares are likely and a further X-class flare is possible. The position of NOAA 11875 on at UT is: N06W89 (Solar X = 960", Solar Y = 099") 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 29 Oct '13

29 Oct '13

MM#009 Default HESSI Target Dear RHESSI Collaborators, Solar flare activity is currently at a moderate level. The most active region was NOAA 1875 now located on the northwestern limb. 1875 was the source of numerous C-class events and an M1.5 at 10/28/20:57 UT. Target region NOAA 1882 (S08E10) is now in decay phase displaying a much weaker magnetic delta. We will switch to NOAA 1875 today. NOAA 1877 (S12E67) has emerging flux and will likely be chosen for the target region tomorrow. 1875, 1877, and 1882 are capable of producing C-class events with the chance of an isolated M-class event in the next 24 hour period. The position of NOAA 1875 on October 29 at 18:00 UT is: N06W89 (Solar X = 960", Solar Y = 099") 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#003 Major Flare Watch
by Max Millennium Chief Observer 28 Oct '13

28 Oct '13

MM#003 Major Flare Watch Dear RHESSI Collaborators, Solar flare activity continues at a high level. NOAA 1875 (N07W74) was the most active region in the past 24 hours producing 2 major flares (X1 event at 10/28/02:03 UT and an M5.1 event at 10/28/04:41 UT). 1875 very rapidly developed a strong delta configuration located in the large, leading penumbra late UT yesterday. The delta appears to have decayed somewhat following the X- and M- events. Target region NOAA 1882 was the source of 2 M-class events today. The largest was an M4.4 at 10/28/15:15 UT. 1882 is currently in growth phase adding sunspot area and count in its trailing portion where a strong delta configuration is located. The Major Flare Watch will continue today with 1882 as its target region. Both 1882 and 1875 have the potential to produce a major flare =/>M5 with a chance of an X-class event as well in the next 24 hours. The position of NOAA 1882 on October 28 at 16:30 UT is: S08E24 (Solar X = -390", Solar Y = -206") 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#003 Major Flare Watch
by Max Millennium Chief Observer 27 Oct '13

27 Oct '13

Dear RHESSI Collaborators, Solar activity is at a moderate level. NOAA regions 11875 and 11882 continue to be the most magnetically complex regions on the visible solar disk, both showing a beta-gamma-delta magnetic classification. NOAA 11875 has maintained area and number of spots and continues to produce C-class flares. NOAA 11882 has grown in area and number of spots, but has decreased in flare productivity over the previous 24 hours (despite containing the strongest delta spot). At this stage we are ceasing the MM#018 Great Flare Watch to reinstate the MM#003 Major Flare Watch on NOAA 11882 for at least the next 24 hours, as this region retains the potential for a >M5 flare. The position of NOAA 11882 on 27-Oct-2013 at 22:00 UT: S08E35, ( -548", -200" ) 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#018 Great Flare Watch
by Max Millennium Chief Observer 26 Oct '13

26 Oct '13

Dear RHESSI Collaborators, The level of solar activity is high. NOAA 11882 remains the most active region on disk. This region is now sufficiently on disk for a reliable magnetic classification and is designated as a beta-gamma-delta/D-type sunspot group. NOAA 11882 has grown in area and number of spots in the previous 24 hours, with the delta consisting of the primary leading and primary trailing spots. This region continues to produce significant flare activity (6 M-class events since yesterday's message). The MM#018 Great Flare Watch will remain in effect for the next 24 hours, as 11882 retains the potential for a >X1 flare. The position of NOAA 11882 on 26-Oct-2013 at 20:00 UT is: S08E48, ( -711", -189" ) 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#018 Great Flare Watch
by Max Millennium Chief Observer 25 Oct '13

25 Oct '13

Dear RHESSI Collaborators, Solar activity is at a high level. NOAA region 11882 has recently rotated onto the visible disk over the South East limb, but has already produced 2 X-class flares in the past 7 hours (an X1.7 and an X2.1 on 25-Oct-2013 at 07:53 UT and 14:51 UT, respectively). This region is classified as a beta/D-type sunspot group by NOAA, but its proximity to the limb limits the accuracy of a magnetic designation. At this time we are initiating a MM#018 Great Flare Watch, due to NOAA 11882 having produced multiple >X1 flares. Further M-class activity is likely in the next 24 hours, with a chance for an additional >X1 flare. The position of NOAA 11882 on 25-Oct-2013 at 16:00 UT is: S08E64, ( -861", -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, Shaun Bloomfield (Trinity College Dublin)

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

24 Oct '13

Dear RHESSI Collaborators, The level of solar activity is high. The previous MM#003 Major Flare Watch (MFW) was called in response to an M9.3 flare that occurred on 24-Oct-2013 at 00:21 UT. At the MFW issue time the originating region was miss-assigned as NOAA 11875, due to that region showing the decay of an M3.1 flare in near-realtime imaging. The M9.3 flare originated from NOAA 11877, to which the MFW target changes now. NOAA 11877 is classified as a beta-gamma-delta/E-type sunspot group, but may be in the process of losing its delta spot. The MFW will remain in effect for the following 24 hours, due to 11877 having produced a >M5 flare. The position of NOAA 11877 on 24-Oct-2013 at 22:00 UT is: S12W03, ( 52", -284" ) 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#003 Major Flare Watch
by Max Millennium Chief Observer 23 Oct '13

23 Oct '13

Dear RHESSI Collaborators, The current activity level is high. The target region (NOAA 11875) has just released a ~M9 flare on 24-Oct-2013 at 00:30 UT. Because of this significant flare, and region's beta-gamma-delta magnetic classification, a major flare watch is now enacted. Further M-class activity is likely, with a good chance for a major flare (>M5). The position of NOAA 11875 on 24-Oct-2013 at 00:50 UT is: N08W11, ( 191", 50" ) 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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MMmotd October 2013