Dear RHESSI Collaborators,
Solar activity is at a moderate level. NOAA region 11731 has continued
to decay, losing its delta magnetic configuration and being classified
as a beta-gamma/E-type sunspot group. This region produced only two low
C-class events over the previous 24 hours. Yesterday's MFW target NOAA
11739 has been classified by NOAA as a beta-gamma/D-type sunspot group
and was the source of several C-class events since yesterday's message
(the largest being a C8.4 flare on 5-May-2013 at 06:39 UT). NOAA 11739
may have a delta-spot configuration in its mixed-polarity intermediate
spots, but it remains too close to the limb to be certain. The MM#003
Major Flare Watch will continue for the next 24 hours, as the possible
delta-spot configuration indicates the potential to produce another M5
or greater flare.
The position of NOAA 11739 on 5-May-2013 at 11:00 UT is:
N13E51, ( -721", 252" )
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)
Dear RHESSI Collaborators,
Solar activity is at a moderate-to-high level. NOAA region 11731 has
decayed somewhat in spot area, but retains a beta-gamma-delta/E-type
sunspot group classification. This region was the source of one low
C-class event in the past 24 hours, and an M1.3 flare on 3-May-2013
at 16:39 UT. A new region has rotated over the North East limb since
yesterday's message, and is designated as NOAA 11739. This region
produced an M5.7 flare on 3-May-2013 at 17:24 UT and two subsequent
low C-class events. Prior to rotating over the North East limb, this
region was also the source of a flare and CME eruption on 1-May-2013
at ~02:15 UT. NOAA 11739 remains too close to the limb to accurately
determine its magnetic configuration, but is classified as having at
least a beta/D-type sunspot group classification. At this time we are
implementing a Major Flare Watch due to the increased possibility of
an M5 or greater flare over the next 24-48 hours.
The position of NOAA 11739 on 4-May-2013 at 12:30 UT is:
N13E68, ( -861", 237" )
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)
Dear RHESSI Collaborators,
Solar activity has returned to a low level. NOAA region 11730 has
decayed significantly in the previous 24 hours, decreasing in spot
area and number of spots. This region is now classified by NOAA as
a beta/C-type sunspot group and produced only two low C-class events
since yesterday's message. NOAA 11731 has also produced only two low
C-class events since the M1.1 flare on 2-May-2013 at 04:58 UT. This
region will remain the target as it has maintained spot area, number
of spots, and a beta-gamma-delta/E-type sunspot group classification.
Further C-class activity is expected, with a chance for another low
M-class event.
The position of NOAA 11731 on 3-May-2013 at 09:30 UT is:
N09W36, ( 558", 201" )
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)
Dear RHESSI Collaborators,
Solar activity remains at a moderate level. NOAA regions 11730 and 11731
have both maintained beta-gamma-delta/E-type sunspot group classifications.
NOAA 11731 has stabilized in spot area coverage and number of spots, while
11730 continues to decrease in spot area and is now decreasing in number of
spots. NOAA 11731 was the source of several C-class events over the past 24
hours, as well as an M1.1 flare on 2-May-2013 at 04:58 UT. Further C-class
activity is expected, with a chance for another low M-class event.
The position of NOAA 11731 on 2-May-2013 at 09:00 UT is:
N09W22, ( 353", 211" )
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)
Dear RHESSI Collaborators,
Solar activity is at a moderate level. NOAA 11730 has maintained spot
area and a beta-gamma-delta/E-type sunspot group classification while
increasing in number of spots. This region has continued to produce
several C-class events, the largest being a C9.6 flare on 1-May-2013
at 01:20 UT. Yesterday's target NOAA 11731 has also maintained spot
area coverage, but has been reclassified as a beta-gamma-delta/E-type
sunspot group. Although 11731 has produced fewer (and lower magnitude)
flares than 11730 in the past 24 hours, 11731 will remain the target
as it contains more high-gradient magnetic polarity inversion lines.
Further C-class activity is expected in the following 24 hours, with
a chance for a low M-class event.
The position of NOAA 11731 on 1-May-2013 at 10:30 UT is:
N09W09, ( 145", 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,
Shaun Bloomfield (Trinity College Dublin)