MMmotd February 2014

mmmotd@solar.physics.montana.edu

1 participants
29 discussions

MM#009 Default HESSI Target
by Max Millennium Chief Observer 28 Feb '14

28 Feb '14

Dear RHESSI Collaborators, Solar activity remains elevated, although NOAA 11990 has failed to produce another major flaring event. We are therefore ending the current Major Flare Watch campaign. The new target region shall be NOAA 11991, a beta/D-type region in the southeast quadrant that has produced several C-class flares over the past 24 hours, as well as an M1.1 flare at 00:44 UT today. The region has shown signs of flux emergence and is likely to produce further low-to-intermediate level activity. The position of NOAA 11991 on 28-Feb-2014 at 08:35 UT is: S25E47, ( -643", -331" ) 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 27 Feb '14

27 Feb '14

Dear RHESSI Collaborators, Solar activity is at C-level, with the majority of events over the past 24 hours emanating from NOAA 11991, while NOAA 11990 was the source of a C3.1 flare at 09:00 UT today. NOAA 11990 is now classified as a beta-delta region, and has recently seen some negative polarity flux emerge into the penumbra of the positive leader spot. Major Flare Watch shall remain in effect for a further 24 hours with NOAA 11990 as the target region, but also include NOAA 11991 in your field of view if possible. The position of NOAA 11990 on 27-Feb-2014 at 12:35 UT is: S12E43, ( -648", -113" ) 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 26 Feb '14

26 Feb '14

Dear RHESSI Collaborators, The target region NOAA 11990 has remained quiescent since the X4.9 flare yesterday. Several other active regions have produced C-level events, including NOAA 11982 which was also the source of an M1.1 flare at 14:52 UT today. NOAA 11990 has shown significant signs of decay since the last message but retains its reversed polarity delta configuration with strong sheering. At this time we are downgrading from a Great Flare Watch to a Major Flare Watch due to the decreased likelihood of another large X-class flare at this time. The position of NOAA 11990 on 26-Feb-2014 at 12:35 UT is: S12E57, ( -796", -135" ) 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#018 Great Flare Watch
by Max Millennium Chief Observer 25 Feb '14

25 Feb '14

Dear RHESSI Collaborators, NOAA 11990 is now identified as a large delta spot with strong sheer along its polarity inversion line. Given the potential for another X-class flare in the next 24-48 hours we are now implementing a Great Flare Watch campaign. The position of NOAA 11990 on 25-Feb-2014 at 17:00 UT is: S15E67, ( -862", -203" ) 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 Feb '14

24 Feb '14

Dear RHESSI Collaborators, Since the previous message, the target region (now designated as NOAA 11990) was the source of a X4.97 flare on 25-Feb-2014 at 00:49 UT. At this time a large spot is visible in the leading portion of the target region, but the region's magnetic configuration is still uncertain. A Major Flare Watch is now in effect. There is a significant chance for a further major flare. The position of NOAA 11990 on 25-Feb-2014 at 01:20 UT is: S15E76, ( -910", -221" ) 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 24 Feb '14

24 Feb '14

Dear RHESSI Collaborators, NOAA 11982 has remained quiescent over the past 24 hours, while the new region encroaching upon the southeast limb (the return of NOAA 11967) has continued to produce low C-level flares since the M1.1 flare yesterday. Although the magnetic configuration of this new region is unclear, it shall be the new target region. Further low-to-intermediate level activity possible. The position of the target region on 24-Feb-2014 at 08:35 UT is: S09E86, ( -956", -143" ) 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 23 Feb '14

23 Feb '14

Dear RHESSI Collaborators, The current level of solar activity is moderate. The largest event since yesterday's message was a M1.1 flare released by a new region over the East limb on 23-Feb-2014 at 06:10 UT. At this time the magnetic configuration of the new region cannot be determined. Yesterday's target (NOAA 11982) has not produced further significant activity since the previous message, but continues to emerge flux in its following portion. Chromospheric brightenings are are being released at the strong polarity separation line adjacent to the large following spot. Low C-class activity is expected with the chance for a moderate C-class event. The position of NOAA 11982 on 23-Feb-2014 at 17:45 UT is: S10W05, ( 81", -49" ) 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 22 Feb '14

22 Feb '14

Dear RHESSI Collaborators, The current level of solar activity is low. The largest event since yesterday's message was a C7.7 flare released by a region over the East limb on 22-Feb-2014 at 15:50 UT. At this time the magnetic configuration of the new region cannot be determined. On the other hand, yesterday's target (NOAA 11982) was responsible for further low C-class activity and shows evidence for further flux emergence in its following portion (the primary site of its flare activity). Further low C-class activity is expected with the chance for a moderate C-class event. The position of NOAA 11982 on 23-Feb-2014 at 03:30 UT is: S10E03, ( -51", -49" ) 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 21 Feb '14

21 Feb '14

Dear RHESSI Collaborators, The current level of solar activity is low. Since yesterday's message, low C-class activity was produced by regions over both the East and West limbs. Yesterday's target region (NOAA 11982) was not responsible for further significant events, but now shows signs of flux emergence in its North-East portion. Instruments with a limited FOV should focus on the newly emerging flux, ~5 degrees North of the main polarity separation line within NOAA 11982. Low C-class activity is expected with a chance for a moderate C-class event. The position of NOAA 11982 on 21-Feb-2014 at 18:45 UT is: S11E22, ( -353", -75" ) 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 Feb '14

20 Feb '14

Dear RHESSI Collaborators, The current level of solar activity is moderate. The largest event since the previous message was a M3.0 flare, released by NOAA 11976 on 20-Feb-2014 at 07:56. The region is currently decaying, and does not exhibit a complex magnetic configuration. On the other hand, yesterday's target (NOAA 11982) was responsible for a series of moderate C-class events. Continued flux emergence and rapidly moving emerging spots are evident within its intermediate portion. For instruments with limited FOV, the main flare site appears to be centered on the large leading spot within NOAA 11982. If possible, both NOAA 11982 and NOAA 11981 should be included in the FOV. Further moderate C-class activity is expected with a chance for a high C-class flare. The position of NOAA 11982 on 20-Feb-2014 at 17:45 UT is: S11E34, ( -537", -88" ) 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 February 2014