Dear Collaborators,
Solar activity has remained at an intermediate level since the last
message. NOAA 13511 produced one further C-class flare as it transited
the southwest limb. NOAA 13514 has shown dynamic sunspot behaviour
over the last 24 hours and has produced several C-class flares,
including a C9.1 at 03:27 UT today. At this time we are ending the
Major Flare Watch campaign. The target region will switch to NOAA
13514 for the next 24 hours. Further C-class activity likely, with a
chance for an isolated M-class flare.
The position of NOAA 13514 on 12-Dec-2023 at 12:30 UT is:
N06W15, (251", 110")
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,
Harry Greatorex & Ryan Milligan (Queen's University Belfast)
Dear Collaborators,
Solar activity has continued at a moderate level since the last
message. In the last 24 hours NOAA 13511 produced over fifteen C-class
flares, as well as an M1.4 flare at 22:37 UT yesterday. NOAA 13511 is
still classified as a beta-gamma type region as it begins its transit
over the southwest limb. The Major Flare Watch will be extended for a
further 24 hours, with a slight chance for an isolated >M5 flare.
The position of NOAA 13511 on 11-Dec-2023 at 12:30 UT is:
S23W78, (877", -379")
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,
Harry Greatorex & Ryan Milligan (Queen's University Belfast)
Dear Collaborators,
Solar activity has returned to a moderate level since the last message.
The target region NOAA 13511 continued to be the most flare-productive
spot region, being the source of more than ten C-class flares as well as
the largest magnitude event in the period - an M2.3 at 03:42 UT today.
13511 has now developed to a beta-gamma region with fresh flux
emergence and shall continue as the target region. The Major Flare
Watch will be extended for a further 24 hours, with a slight chance of
an above M5 flare.
The position of NOAA 13511 on 10-Dec-2023 at 12:30 UT is:
S22W66, (826",-363")
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,
De-Chao Song (Purple Mountain Observatory)
Dear Collaborators,
Solar activity had been moderately high since the last message.
Yesterday's target NOAA 13513 retains its beta-gamma magnetic
configuration and produced a small number of low C-class flares
in the period, while NOAA 13511 (a beta/E-type) was the source
of three M-class plus more than ten C-class flares, including the
largest in the period - an M5.4 flare at 22:57 UT yesterday. At this
time we are implementing a Major Flare Watch campaign with
NOAA 13511 as the new target region due to the complexity of
the magnetic field connection between it and the nearby active
regions (such as NOAA 13510) and its additional flux emergence.
Further low M-class activities are expected in the following 24-48
hours, with a chance for another above M5 flare.
The position of NOAA 13511 on 9-Dec-2023 at 12:30 UT is:
S22W52, (713",-364")
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,
De-Chao Song (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has slightly decreased since the last message. A number
of C-class flares were produced, the largest being C8.2 at 20:46 UT
yesterday from the target NOAA 13513. 13513 has now developed to
a beta-gamma region with flux emergence and produced another ten
C-class flares in the period. It shall remain the target region over the
following 24 hours. Besides, NOAA 13511 also produced eight C-class
flares during the period. Further C-class flares are expected, with a
chance for low M-class flares.
The position of NOAA 13513 on 8-Dec-2023 at 08:30 UT is:
N18E35, (-532",301")
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,
De-Chao Song (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has remained at a moderate level since the last message.
The target region NOAA 13513 (beta/D-type) continued to be the most
flare-productive region, being the source of more than ten C-class flares
as well as the largest magnitude event in the period - an M2.3 on 6-Dec-
2023 at 21:26 UT. 13513 shows signs of further development and shall
continue as the target region. Please note that NOAA 13511 (S22W26)
also produced three low C-class flares today, which has a beta-gamma
magnetic configuration. Additional C-class activity is expected over the
next 24 hours, with a chance for another low M-class flare.
The position of NOAA 13513 on 7-Dec-2023 at 12:30 UT is:
N19E46, (-664",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,
De-Chao Song (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has increased since the last message. The target region
near the northeast limb is now numbered as NOAA 13513 and
designated as a beta/C-type sunspot region. This region continued
to be the most flare-productive region, being the source of more than
ten C-class plus three M-class flares, including the largest in the period
- an M2.1 at 05:30 UT today. This region continues to undergo flux
emergence and shall remain as the target for the following 24 hours.
Further C-class flares are expected, with a good chance of additional
M-class flares.
The position of NOAA 13513 on 6-Dec-2023 at 08:30 UT is:
N19E62, (-814",315")
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,
De-Chao Song (Purple Mountain Observatory)
Dear Collaborators,
Solar activity is at a moderate level. Yesterday's target NOAA 13511
has produced only three low-to-mid C-class flares since the last
message. The largest event in the period is an M1.6 flare from a
currently unnumbered active region on the North East limb (N18E77)
at 06:39 UT today. This region was also the source of more than
ten C-class flares and will be the default target region. More C-class
flares are expected over the next 24 hours, with a chance of additional
M-class activity.
The approximate position of this region on 5-Dec-2023 at 12:30 UT is:
N18E73, (-886" , 299")
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,
De-Chao Song (Purple Mountain Observatory)
Dear Collaborators,
Solar activity is at a low-to-moderate level. Yesterday's target NOAA
13500 only produced one B9 and two low C-class flares during its
approach to the South West limb. The largest event in the period
was a C8.1 flare at 01:22 UT today, produced by a newly emerged
active region NOAA 13511 (S23E16, beta/B-type), which was also
the source of another two ~C1 flares. 13511 continues to undergo
flux emergence and shall be the new default target region. There is
a possibility of high C-/low M-level activity over the next 24 hours.
Also include the nearby NOAA 13510 (S15E15, beta/C-type) in
your field of view if possible, which also produced two C1 flares
in the period.
The position of NOAA 13511 on 4-Dec-2023 at 12:30 UT is:
S23E16, (-247",-389")
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,
De-Chao Song (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has diminished since the last message. The target region
NOAA 13500 (S18W65, beta-gamma/E-type) and some west limb
regions produced the vast majority of flare activity in the period, the
largest event being a C4.0 flare at 07:54 UT today attributed to NOAA
13499 near the southwest limb (S23W89). The target will remain on
13500 due to its magnetic complexity and its past flaring history.
Further C-class activity is expected over the next 24 hours, with a
slight chance for low M-class flares.
The position of NOAA 13500 on 3-Dec-2023 at 12:30 UT is:
S18W65, (840",-305")
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,
De-Chao Song (Purple Mountain Observatory)