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)
Dear Collaborators,
Solar activity has reached moderate levels since the last message.
The largest event in the period was an M1.0 flare at 20:55 UT yesterday,
attributed to the target region NOAA 13500 (S18W49, beta-gamma/E-type).
However, some other flares from the west limb regions, occurring
simultaneously, also contributed to the soft X-ray flux. 13500 was also
the source of another eight C-class flares in the period. Today the target
shall remain on 13500 due to its past flaring history and ongoing flux
emergence. Besides, NOAA 13492 (N19W91, beta/C-type) also produced
five low-to-mid C-class flares during the period. Further C-class flares are
expected with a chance of additional M-class flares in the next 24 hours.
The position of NOAA 13500 on 2-Dec-2023 at 08:30 UT is:
S18W49, (700",-309")
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 increased since the last message. The target
region NOAA 13500 continues to retain its beta-gamma magnetic
configuration and has grown in spot area in the period. This region
continued being the source of multiple C-class flares since the last
message, but the largest event in the period was an M1.1 flare at
04:12 UT today from NOAA 13502 near the northwest limb (N15W75).
The target remains with 13500 due to its magnetic complexity and
the signs of further development with flux emergence. More C-class
flares are expected in the next 24 hours, with a chance for additional
M-class flares.
The position of NOAA 13500 on 1-Dec-2023 at 12:30 UT is:
S18W37, (558",-313")
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 largest event
in the period was a C3.8 flare at 14:27 UT yesterday from the target region
NOAA 13500, which also produced another five low C-class flares in the
period. 13500 retains its beta-gamma magnetic configuration and has
increased in terms of spot area and number of spots. NOAA 13500 will
remain as the target region due to its continued flux emergence, although
we are ending the Major Flare Watch at this time. Further C-class activity
is likely, with a slight chance of M-class flares.
The position of NOAA 13500 on 30-Nov-2023 at 08:30 UT is:
S18W23, (362",-317")
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 high level. The largest event since the last message
is an M9.8 flare at 19:35 UT yesterday from the target region NOAA 13500.
13500 retains its beta-gamma magnetic configuration and continues to
undergo flux emergence. It shall remain the target region. At this time,
we are implementing the Major Flare Watch campaign. Further C-class
activities are expected over the following 24-hour period, with a chance
for another above M5 flare.
The position of NOAA 13500 on 29-Nov-2023 at 08:30 UT is:
S19W10, (160",-336")
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)