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)
Dear RHESSI Collaborators,
Solar activity is at a low level. NOAA 11730 emerged new magnetic flux
since yesterday's message to develop a beta-gamma-delta/E-type sunspot
classification and produce several C-class events (the largest being a
C5.9 on 29-Apr-2013 at 20:22 UT). However, 11730 has shown considerable
decay of the delta spot over the past 12 hours. NOAA 11731 shows signs
of decay through fragmentation, with decreasing spot area coverage and
increasing number of spots. This region has been reclassified by NOAA
as a beta-gamma/E-type sunspot group and continues to be the source of
C-class flares (the largest being a C3.9 on 29-Apr-2013 at 21:55 UT).
Further C-class activity is expected, with a chance for an isolated low
M-class event.
The position of NOAA 11731 on 30-Apr-2013 at 12:00 UT is:
N09E04, ( -72", 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,
Shaun Bloomfield (Trinity College Dublin)
Dear RHESSI Collaborators,
Solar activity is at a moderate level. Yesterday's target NOAA region
11731 has grown in number of spots while maintaining spot area coverage
and a beta-gamma/D-type sunspot group classification. This region has
continued to be active since yesterday's message and was the source of
11 C-class events in the past 24 hours, the largest of which was a C3.6
flare on 28-Apr-2013 at 18:00 UT. Further C-class activity is expected,
with a chance for an isolated low M-class event.
The position of NOAA 11731 on 29-Apr-2013 at 13:00 UT is:
N09E18, ( -289", 217" )
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,
With NOAA 11726 now over the limb activity has returned to low levels. The
new target region shall be NOAA 11731 located in the northeast quadrant.
The region is classified as having a beta-gamma/D-type configuration and
was the source of a C2.1 flare at 06:07 UT today. Further isolated
low-level events possible.
The position of NOAA 11731 on 28-Apr-2013 at 09:00 UT is:
N09E32, ( -500", 210" )
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)
Dear RHESSI Collaborators,
Solar activity remains elevated as NOAA 11726 rotates over the western
limb. The region continues to produce C-level events and shall remain the
target region for a further 24 hours. Additional C-class flares expected
with chance for an isolated low M-class flare before west limb passage.
The position of NOAA 11726 on 27-Apr-2013 at 09:00 UT is:
N13W91, ( 928", 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,
Ryan Milligan (QUB)
Dear RHESSI Collaborators,
Solar activity remains at intermediate levels. NOAA 11726 has produced a
range of C-class flares over the past 24 hours. The region continues to
develop but is now on the western limb. Further C-level activity expected
with chance of an isolated low M-class flare before west limb passage.
The position of NOAA 11726 on 26-Apr-2013 at 06:00 UT is:
N13W89, ( 928", 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,
Ryan Milligan (QUB)
Dear RHESSI Collaborators,
NOAA 11726 continues to increase in size but has begun to diminish in terms
of complexity as it nears the western limb. The region has produced
multiple C-class flares over the past 24 hours but has failed to produce a
major event. We are ending the Major Flare Watch at this time but NOAA
11726 shall continue to be the target region. Further C-level activity
expected with chance for an isolated low M-class flare.
The position of NOAA 11726 on 25-Apr-2013 at 09:00 UT is:
N13W68, ( 862", 242" )
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)
Dear RHESSI Collaborators,
The target region NOAA 11726 continues to develop and retains its
beta-gamma-delta configuration. The largest flare since the last message
was a C8.2 at 14:05 UT yesterday. The region has lost some of the shear
around the delta spot but we shall continue with the Major Flare Watch for
a further 24 hours as the possibility of an M5 flare or greater still
remains.
The position of NOAA 11726 on 24-Apr-2013 at 09:00 UT is:
N13W54, ( 755", 260" )
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)