MMmotd July 2013

mmmotd@solar.physics.montana.edu

1 participants
31 discussions

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

31 Jul '13

Dear RHESSI Collaborators, The level of solar activity is low. Yesterday's target region 11805 has rotated to the West limb and has significantly decreased in activity. On the other hand, a new region, NOAA 11809, has rotated onto the East limb. Meanwhile, a new bipole is currently emerging at around N05E45, which may act to destabilise both NOAA 11809 and nearby NOAA 11808. NOAA 11809 appears to have the strongest and most complex sunspot configuration, although it is difficult to determine the precise surface magnetic field morphology, currently. Considering soft X-ray images, NOAA 11809 is the most active and was responsible for at least one C-class event (a C1.5 on 31-Jul-2013 at 05:18 UT) since the last message. Further low C-class activity is expected, with a chance for an isolated high C-class event. The position of NOAA 11809 on 31-Jul-2013 at 17:30 UT is: N14E69, ( -859", 195" ) 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 30 Jul '13

30 Jul '13

Dear RHESSI Collaborators, The level of solar activity is low. Yesterday's new regions (NOAA 11807 and 11808) have ceased emerging new flux. NOAA 11808 shows evidence for a very small but concentrated polarity separation line in its following portion and the region appears to be destabilising nearby NOAA 11801. However, the overall magnetic complexity and spot area of the two ARs is much less than that of yesterday's target NOAA 11800 and nearby 11805. This AR complex continues to release B- and C-class flares, the largest of which was a C6.3 event from NOAA 11800 on 29-Jul-2013 at 23:18 UT. Since NOAA 11800 has rotated over the limb, the target will now switch to NOAA 11805. Further C-class activity is expected with a chance for an isolated low M-class flare. The position of NOAA 11805 on 30-Jul-2013 at 17:30 UT is: S06W68, ( 871", -134" ) 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 Jul '13

29 Jul '13

Dear RHESSI Collaborators, The level of solar activity is low. The largest flare since the previous message was a C3.2 flare on 28-Jul-2013 at 12:21 UT released from the area between NOAA 11805 and 11800. Since yesterday this localised complex of sunspot groups (including NOAA 11805, 11800 and decayed regions 11803, 11798, and 11799) has been resposible for multiple C-class flares. There is currently a ~C3 flare in progress from the region. Although there are also two currently emerging bipole regions on disk (near N30W10 and N15E60), the target region is still designated as 11800, as it is clearly still unstable. But, if the observer's field of view is large enough, it should also include NOAA 11805, which appears to be strongly magnetically connected. Tomorrow the target will likely switch to one of the newly emerging bipole regions. Further high B-class activity is expected with a chance for a further C-class event. The position of NOAA 11800 on 29-Jul-2013 at 17:00 UT is: S08W83, ( 930", -141" ) Paul Higgins (Trinity College Dublin/LMSAL)

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

28 Jul '13

Dear RHESSI Collaborators, The level of solar activity is low. The largest flare since the previous message was a C1.7 flare on 28-Jul-2013 on 03:10, released from NOAA 11793, which has rotated over the west limb. Weak flux emergence has continued within NOAA 11805. Yesterday's target NOAA 11800 has continued to emerge flux, increasing the number of spots and total spot area. This has increased the evidence for a gamma magnetic classification within the region. Further B-class activity is expected with a chance for C-class events. The position of NOAA 11800 on 28-Jul-2013 at 17:30 UT is: S08W70, ( 879", -162" ) Paul Higgins (Trinity College Dublin/LMSAL)

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

27 Jul '13

Dear RHESSI Collaborators, The level of solar activity is low. The largest flare since the previous message was a C1.8 event released by NOAA 1803 on 26-Jul-2013 at 21:49 UT. This region appears to be a plage region in close proximity to yesterday's target, NOAA 11800, which has released three low C-class flares since yesterday. NOAA 11800 has decreased its number of spots, but increased in spot area. Further B-class activity is expected with the possibility of further C-class activity. The position of NOAA 11800 on 27-Jul-2013 at 17:00 UT is: S08W55, ( 772", -182" ) 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 26 Jul '13

26 Jul '13

Dear RHESSI Collaborators, The level of solar activity is low. The largest flare since the previous message was a C2.1 event released by yesterday's target (NOAA 11800) on 26-Jul-2013 at 22:44 UT. The region was also the source of other B-class activity since the previous message. Evidence for a gamma classification is still weak. However, new flux has emerged again within NOAA 11800. This has strengthened the following (negative) spot and has increased the number and strength of the intermediate (positive spots). Further B-class activity is expected with the possibility of further C-class activity. The position of NOAA 11800 on 26-Jul-2013 at 17:30 UT is: S09W42, ( 622", -213" ) 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 25 Jul '13

25 Jul '13

Dear RHESSI Collaborators, The level of solar activity is low. The largest flare since the previous message was a C1.8 event released by yesterday's target (NOAA 11800) on 24-Jul-2013 at 21:43 UT. The region was also the source of other B- and C-class activity. A strong intermediate spot of the leading polarity is now visible close to the main following spot. Further B-class activity is expected with the possibility of further C-class activity. The position of NOAA 11800 on 25-Jul-2013 at 18:30 UT is: S09W28, ( 443", -224" ) 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 Jul '13

24 Jul '13

Dear RHESSI Collaborators, The level of solar activity is low. The new region mentioned in the last message has now rotated over the east limb (now designated NOAA 11801) and has a alpha magnetic classification. A small bipole is currently emerging within the decayed eastern portion of NOAA 11803. Yesterday's target (NOAA 11800) has slowed its flux emergence and now exhibits slight evidence for a beta-gamma configuration. The region was the source of a B4.9 event on 24-Jul-2013 at 01:24 UT. Further B-class activity is expected with a chance for an isolated C-class event. The position of NOAA 11800 on 24-Jul-2013 at 17:30 UT is: S07W13, ( 207", -198" ) 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 23 Jul '13

23 Jul '13

Dear RHESSI Collaborators, The level of solar activity is low. The largest flare since yesterday's message was a B4.6 flare on 22-Jul-2013 at 10:33 UT released by a new region currently over the east limb. Considering the current STEREO B EUV image, the region does not appear to be large. Yesterday's target, NOAA region 11800 has not produced further significant activity since the previous message. However, the region has emerged new flux in its northern portion, in the form of a new bipole. Although, the new flux has not resulted in NOAA 11800 gaining a mixed polarity classification as of yet. B-class activity is expected with a chance for an isolated C-class event. The position of NOAA 11800 on 23-Jul-2013 at 18:30 UT is: S08W02, ( 37", -215" ) 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 Jul '13

22 Jul '13

Dear RHESSI Collaborators, The level of solar activity is low. The largest flare since yesterday's message was a B8.3 flare on 21-Jul-2013 at 12:19 released by NOAA region 11793 (which now shows no significant signs of a gamma configuration). Yesterday's target, NOAA region 11800 has not produced further significant activity since yesterday's C3.1 flare. The main spots in NOAA 11800 have further separated but the region is now classified as a beta/D-type region. B-class activity is expected with a chance for an isolated C-class event. The position of NOAA 11800 on 22-Jul-2013 at 18:30 UT is: S08E12, ( -191", -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, Paul Higgins (Trinity College Dublin/LMSAL)

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MMmotd July 2013