Dear RHESSI Collaborators,
Solar activity is at a very low level. NOAA region 11554 has grown in
spot area coverage since yesterday's initial NOAA designation and has
maintained a beta/D-type sunspot group class. A new region has rotated
over the NE limb and is designated as NOAA 11555. This region appears
to have the largest spot area on disk, but today's target will remain
as 11554 due to past flaring history. B-class activity is probable,
with a chance for low C-class events.
The position of NOAA 11554 on 26-Aug-2012 at 14:00 UT is:
N16W08, ( 123", 149" )
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,
Yesterday's target region has been designated as NOAA region 11554.
This region has continued to evolve, now showing substantial spots
and mature penumbrae in a beta/D-type sunspot group classification.
NOAA region 11554 produced a C1.7 flare on 25-Aug-2012 at 02:24 UT.
More C-class activity is possible in the following 24 hours.
The position of NOAA 11554 on 25-Aug-2012 at 09:00 UT is:
N16E07, ( -113", 149" )
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,
The level of solar activity remains very low. A new region has emerged
in the North East quadrant, developing several clear spots in the past
24 hours. This unnumbered region appears to have a beta magnetic class
with well-developed coronal loops, and is currently forming penumbrae.
B-class activity is possible in the following 24 hours, with a chance
for some low C-class events if further magnetic flux emerges.
The approximate position of this region on 24-Aug-2012 at 10:00 UT is:
N16E22, ( -347", 157" )
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 very low level. NOAA region 11548 has continued to
maintain spot area, number of spots, and a beta/C-type sunspot group class.
Although NOAA 11548 has recently only produced B-class events, this region
will remain the target due to its compact population of coronal loops that
are bright across a range of temperatures. B-class activity is probable,
with a chance for C-class events.
The position NOAA 11548 on 23-Aug-2012 at 12:30 UT is:
N18E11, ( -175", 184" )
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,
NOAA region 11548 has shown no significant evolution since yesterday's
message with maintaining spot area, number of spots, and a beta/C-type
sunspot group class. NOAA 11548 has produced only B-class events in the
past 24 hours. Continued B-class activity is expected, with a chance of
some C-class events in the following 24 hours.
The position of NOAA 11548 on 22-Aug-2012 at 09:30 UT is:
N18E27, ( -408", 194" )
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,
NOAA region 11548 has continued to decay, decreasing in both spot
area coverage and number of spots. This region remains classified
as a beta/C-type sunspot group, but also displays highly extended
plage. Despite the previous high rate of flaring, NOAA 11548 only
produced B-class events in the last 48 hours. A chance exists for
C-class events in the next 24 hours.
The position of NOAA 11548 on 21-Aug-2012 at 11:30 UT is:
N20E41, ( -583", 241" )
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,
NOAA region 11548 appears to have decreased slightly in spot area and
maintained number of spots as it rotates further onto the visible disk.
This region still has only a beta/C-type sunspot group classification,
but has decreased significantly in terms of flaring frequency and peak
flare magnitudes. We are ending the Major Flare Watch campaign at this
time, but further C-class activity is expected from NOAA 11548.
The position of NOAA 11548 on 20-Aug-2012 at 16:30 UT is:
N19E53, ( -718", 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,
Shaun Bloomfield (Trinity College Dublin)
Dear RHESSI Collaborators,
Yesterday's target region has now been designated as NOAA region 11548.
This region is reported as a beta/C-type sunspot group class, but it is
too close to the limb to accurately determine a magnetic configuration.
NOAA region 11548 has produced 11 C-class and 2 M-class events since
yesterday's Major Flare Watch began, the largest of which was an M2.0
flare on 18-Aug-2012 at 16:02 UT. The Major Flare Watch campaign will
continue, as an increased likelihood of another >M5 flare still exists.
The position of NOAA 11548 on 19-Aug-2012 at 11:30 UT is:
N20E70, ( -837", 285" )
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,
Yesterday's target region is in the process of rotating over the North
East limb and it appears to have a magnetic classification of at least
beta complexity. The target has produced four partially limb-occulted
M-class events in the past 24 hours, the largest of which was an M5.5
flare on 18-Aug-2012 at 00:24 UT. At this time we are implementing a
Major Flare Watch campaign due to the increased likelihood of another
>M5 flare.
The approximate position of this region on 18-Aug-2012 at 08:00 UT is:
N20E87, ( -889", 316" )
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,
NOAA 11543 has decreased in number of spots as it rotates towards the
NW limb, with an associated decrease in complexity to an alpha/H-type
sunspot classification. A limb-occulted C4.7 flare on 17-Aug-2012 at
08:29 UT occurred on the NE limb. The beyond-limb source might be the
return of the region previously designated NOAA 11528, which produced
low-to-moderate C-class flares on its last disk passage. More C-class
activity is possible in the next 24 hours.
The approximate position of this region on 17-Aug-2012 at 11:00 UT is:
N20E90, ( -890", 322" )
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)