Dear Collaborators,
Solar activity has returned to a high level since the last message.
Just at 11:29 UT, an X1.2 flare was produced by NOAA 13947
(N10E66), a northeast region previously mentioned. This region
also produced six C-class flares during the period. At this time,
we are implementing the Major Flare Watch campaign on NOAA
13947. Besides, yesterday's target NOAA 13936 has fully rotated
beyond the west limb, which also produced an M1.1 and two
C-class flares in the period. Further C- and low M-class activities
are expected, with a good chance of additional major flares (>M5)
in the next few days.
The position of NOAA 13947 on 3-Jan-2025 at 08:30 UT is:
N10E66 (-878",191")
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 been at a moderate-to-low level since
the last message. The largest event was an M1.2 flare
at 18:05 UT yesterday, produced by the target region
NOAA 13936 (N13W89). It has nearly rotated beyond
the west limb and also produced an M1.1 flare and two
mid-to-high C-class flares in the period. We will watch
this region for a final 24 hours but are ending the Major
Flare Watch campaign at this time. Additionally, the
northeast limb region (N10E82), mentioned in yesterday's
message, produced three mid-to-high C-class flares
during the period. Further C-class activity is expected,
with a good chance for additional low-M flares in the
following 24 hours.
The position of NOAA 13936 on 2-Jan-2025 at 08:30 UT is:
N13W89 (950",219")
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 dropped to a moderate level since the
last message. The target region NOAA 13936 (N13W76)
was still the most flare-productive region on the visible
solar disk as it approaches the northwest limb. It produced
several C-class flares and three low M-class flares during
the period, with the largest being an M2.7 at 22:02 UT
yesterday. The Major Flare Watch shall remain in effect
with NOAA 13936. Additionally, NOAA 13938 (N19W35,
beta-gamma/D-type) produced an "M2.9" flare during the
decay phase of the M2.7 flare. A northeast limb region
(N10E89, unnumbered yet) also produced an M1.0 and
two mid-to-high C-class flares in the period. Further low-M
activity is expected, with a chance for an isolated >M5 flare
in the next 24 hours.
The position of NOAA 13936 on 1-Jan-2025 at 12:30 UT is:
N13W76 (922",231")
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.
The largest event since the last message was an M5.0 flare
at 16:45 UT yesterday from the target region NOAA 13936
(N12W62), which retains a beta-gamma-delta configuration
and increases in the sunspot area and number of spots.
13936 also produced another five M-class and over ten C-
class flares in the period. Today the Major Flare Watch shall
remain in effect with NOAA 13936. Additionally, NOAA 13927
(S08W89), 13939 (S17W01), and 13932 (S16W69) were the
sources of several low M-class flares in the period. Further
low-M activity is expected, with a chance for additional >M5
flares in the following 24-48 hours.
The position of NOAA 13936 on 31-Dec-2024 at 12:30 UT is:
N12W62 (844",226")
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 remains at a high level. The largest event since the last
message was an X1.5 flare at 04:01 UT today, produced by the target
region NOAA 13936 (N13W46). This region has now developed into a
beta-gamma-delta configuration and produced another six M-class flares
in the period, including an M7.1 yesterday. Today the Major Flare Watch
will remain in effect with NOAA 13936. Please note that NOAA 13932
(S17W55, beta-gamma/D-type) produced an "X1.1" flare during the
decay phase of the X1.5 flare. Additionally, NOAA 13932,13939 (S17E15),
and 13941 (S06E21) produced several low M-class flares in the period.
Further low-M activity is expected, with a good chance for additional >M5
flares from various regions in the following 24-48 hours.
The position of NOAA 13936 on 30-Dec-2024 at 08:30 UT is:
N13W46 (685",252")
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 a high level. The largest event
since the last message was an X1.1 flare at 07:08 UT
produced by NOAA 13936. This region also produced the
most low-M flares today. It has displayed the separation of
its leading spots and retained a beta-delta/E-type magnetic
configuration in the period, with the emergence of additional
spots. Yesterday’s target NOAA 13938 was only a source of
a C7.3 flare. Today the Major Flare Watch shall switch to
13936 from 13938. More low-M activity is expected, with a
good chance for another >M5 flare in the next 24-48 hours.
The position of NOAA 13936 on 29-Dec-2024 at 12:30 UT is:
N13W36 (560", 256")
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,
Qiao Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has grown to a moderate level since the last
message. The largest event was "an M4.5 flare" at 11:12 UT
from NOAAs 13932 (beta-gamma-delta/D-type, S17W30) and
13933 (beta-gamma/D-type, S07W55). The target region NOAA
13938 was a source of an M3.3 flare at 20:29 UT yesterday,
although it was downgraded to a beta-gamma/D-type sunspot
group. Today the Major Flare Watch will continue as NOAA 13938.
More low-M activity is probable, with a chance for an isolated >M5
flare in the following 24 hours.
The position of NOAA 13938 on 28-Dec-2024 at 12:30 UT is:
N19E18 (-286", 358")
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,
Qiao Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has dropped to an intermediate level over the past
24 hours. There are three ~C9 flares produced by three regions.
The largest flare in the period was a C9.6 at 18:28 UT yesterday
from a small newly-emerged region (unnumbered yet). NOAA
13932 (beta-gamma-delta/E-type, S17W15) also was a source
of a C9.5 flare at 07:53 UT today. The target region NOAA 13938
produced a C9.0 flare at 00:44 UT today. 13938 has developed a
weak delta to a beta-gamma-delta/E-type magnetic configuration
as it emerged new visible magnetic fluxes surrounding its main
spots. Today the Major Flare Watch shall remain with 13938 for a
further 24 hours. Further C-class activity is expected, with a chance
for an isolated >M5 flare in the coming 24 hours.
The position of NOAA 13938 on 27-Dec-2024 at 12:30 UT is:
N21E33 (-497", 383")
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,
Qiao Li (Purple Mountain Observatory)
Dear Collaborators,
The level of solar activity has continued to be high since the
last message. The largest event was an M7.3 flare at 02:52 UT
today from NOAA 13938. This region also produced an M3.1
flare at 23:59 UT yesterday and retains a beta-gamma/D-type
classification, with the emergence of new spots. Yesterday’s
target NOAA 13932 (beta-gamma/F-type, S18W06) was flare
quiet during the period. Today the Major Flare Watch shall
switch to 13938 from 13932. Additional low-M activity is probable,
with a good opportunity for another >M5 flare in the coming days.
The position of NOAA 13938 on 26-Dec-2024 at 12:30 UT is:
N20E46 (-661", 360")
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,
Qiao Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has returned to a high level since the last message.
The target region NOAA 13932 produced the largest event in the
period – an M5.0 at 04:46 UT today. 13932 lost the delta configuration
to be confirmed as a beta-gamma/F-type sunspot group, with signs
of decay in its leading portion. Today the Major Flare Watch will
continue as NOAA 13932. Note that NOAA 13838 (beta-gamma/D-type,
N20E61) was the most productive over the period as it rotated on
disk, including its largest magnitude being an M2.9 at 04:14 today.
More low-M activity is very likely, with a chance for an isolated >M5
flare in the next 24 hours.
The position of NOAA 13932 on 25-Dec-2024 at 08:30 UT is:
S18E08 (-129", -266")
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,
Qiao Li (Purple Mountain Observatory)