Dear Collaborators,
Quiet-Sun conditions continue. The only event of note since the last
message was a B2.5 flare at 04:42 UT from NOAA 12848. The complex of
NOAA 12847 and 12849 has undergone some minor flux emergence over the
past 24 and shall remain the target region. Slight chance of isolated
low-level events.
The position of NOAA 12849 on 25-Jul-2021 at 11:30 UT is:
S27E18, ( -260", -502" )
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 (Queen's University Belfast)
Dear Collaborators,
NOAA 12849 was the source of a C4.3 flare at 23:54 UT yesterday, as
well as some B-level activity, but has continued to decay and is now
spotless. It shall continue to be the target region for the next 24
hours with further B-level activity possible.
The position of NOAA 12849 on 24-Jul-2021 at 15:30 UT is:
S20E37, ( -535", -387" )
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 (Queen's University Belfast)
Dear Collaborators,
Quiet-Sun conditions continue with only a few low B-level events
occurring since the last message. All numbered active regions
currently visible have very simple (alpha or beta) configurations, and
are either in decay or due to rotate behind the western limb. NOAA
12849 shall continue to be the target region although no change in
activity is expected over the next 24 hours. Also include NOAA 12847
in your field of view if possible.
The position of NOAA 12849 on 23-Jul-2021 at 11:30 UT is:
S18E54, ( -728", -338" )
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 (Queen's University Belfast)
Dear Collaborators,
Solar activity continues at low levels despite the presence of seven
numbered active regions on the visible solar disk. The target region
in the southeast limb, which was the source of a C1.2 flare at 15:55
UT yesterday, has now been designated as NOAA 12849 and is classified
as an alpha region. It shall continue as the target region for a
further 24 hours, and please include NOAA 12847 in your field of view
if possible. Only isolated low-level events likely at this time.
The position of NOAA 12849 on 22-Jul-2021 at 11:30 UT is:
S18E68, ( -833", -320" )
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 (Queen's University Belfast)
Dear Collaborators,
There are currently five numbered active regions on the visible solar
disk, plus an unnumbered beta region in the northeast quadrant. The
majority of the B-level activity since the last message has come from
a region currently behind the southeast limb. This region also
produced a C1.0 flare at 23:19 UT yesterday. This region shall be the
new target region but please include NOAA 12847 in the southeast
quadrant in your field of view as well if possible. Further B- and
C-level activity likely over the next 24 hours.
The approximate position of the target region on 21-Jul-2021 at 11:30 UT is:
S20E88, ( -886", -324" )
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 (Queen's University Belfast)
Dear Collaborators,
The target region in the northeast quadrant has now been designated as
NOAA 12846 and is classified as having an alpha/H-type configuration.
This region has remained quiescent since the last message, although a
region beyond the southeast limb has produced two C1 flares. NOAA
12846 shall remain the target region for a further 24 hours with
further B-level activity possible.
The position of NOAA 12846 on 20-Jul-2021 at 11:30 UT is:
N25E69, ( -799", 372" )
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 (Queen's University Belfast)
Dear Collaborators,
Solar activity has continued at the B-level since the last message,
the largest being a B4.4 flare at 01:20 UT today. The source of the
flares remains the partially occulted region currently behind the
northeast limb. The region is unnumbered and the magnetic
configuration remains uncertain at this time but it shall continue as
the target region. Further B-level activity expected over the next 24
hours with chance for a C-class flare as the region rotates into view.
The approximate position of the target region on 19-Jul-2021 at 11:30 UT is:
N24E84, ( -859", 376" )
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 (Queen's University Belfast)
Dear Collaborators,
The level of solar activity is very low. The target region has been
designated as NOAA 12845 and was classified as a beta/B-type sunspot
group at the start of the UT day. NOAA 12845 continued producing low
B-class flares for a while after yesterday's message, but it ceased
when the region stopped emerging new flux. NOAA 12843 displayed the
greatest frequency and magnitude of flaring in the period (with the
largest being a B9.7 on 18-Jul-2021 at 06:56 UT), but 12843 has now
rotated over the South West limb. High-lying loops from another new
region are now visible over the North East limb, with STEREO-A EUV
images showing it to be a compact coronal loop system. This region
has already produced three B-class flares of increasing magnitudes
(B1.6, B2.2, and B3.8 on 18-Jul-2021 at 10:14, 16:54, and 19:32 UT,
respectively), all three of which are footpoint occulted (i.e., the
true peak flare magnitudes would be greater). This region becomes
the new target, with B-class activity expected and a strong chance
for a C-class flare over the following 24-hour period as the region
rotates over the North East limb.
The approximate position of this region on 18-Jul-2021 at 20:30 UT is:
N25E90 , ( -855", 397" )
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 (Northumbria University)
Dear Collaborators,
Solar activity is at a very low level. The target NOAA 12843 remained
stable and flare-quiet since the last message as it rotated up to the
South West limb. NOAA 12842 was initially stable but appears to have
increased in complexity to a beta/C-type sunspot group while forming
an East-West magnetic polarity inversion line and producing 3 B-class
flares, including the largest since the last message (a B7.8 flare on
17-Jul-2021 at 03:01 UT). A new region emerged just East of central
meridian and rapidly developed spots in both polarities, currently
displaying at least a beta/B-type sunspot group classification. This
region is expected to be numbered as 12845 at the start of the next
UT day and has already produced 2 B-class flares (a B4.4 and a B4.7
on 17-Jul-2021 at 16:12 and 17:05 UT, respectively). This new region
becomes the target, with additional B-class activity expected and a
good chance for a C-class flare in the next 24 hours if the region
continues to emerge new flux.
The approximate position of this region on 17-Jul-2021 at 18:00 UT is:
S16W00 , ( 0", -333" )
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 (Northumbria University)
Dear Collaborators,
The level of solar activity is low. The target region was remained
unnumbered at the beginning of the UT day and with rotating further
on disk shows small spots/pores in its trailing polarity flux. NOAA
12843 has increased in activity since the last message even though
it has remained classified as an alpha/A-type sunspot group, being
the source of several B-class and two C-class flares (including the
largest of the period, a C1.7 on 16-Jul-2021 at 08:27 UT). 12843
returns to being the target region due to the increase in flaring
frequency and magnitude. Additional low C-class flares are possible
over the next 24 hours.
The position of NOAA 12843 on 16-Jul-2021 at 20:00 UT is:
S17W67 , ( 832", -303" )
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 (Northumbria University)