Dear Collaborators,
Solar activity persists at an elevated level. The largest flare produced
since the last message was an M2.7 from NOAA 14227 at 09:33 UT today. NOAA
14232 produced an additional M1.2 event in the last 24 hours and continues
to show signs of elevated flux. NOAA 14232 will remain the target region
and the MFW will remain active for what may be the last 24 hours. Further
isolated M-class events are possible with a very small chance for a >M5
event.
The position of NOAA 14232 on 30-September-2025 at 11:30 UT is
N05E28, (-449", -16")
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 (Queen's University Belfast)
Dear Collaborators,
Solar activity levels remain elevated. Several flares have been produced
since the last message, the largest being an M3.6 at 01:37 UT today. NOAA
14232 has further increased in complexity over the last 24 hours and is now
classified as a beta-gamma type region. While no major flares were produced
since the last message, the MFW will remain active for a further 24 hours
due to the continued development of the target region. Further M-class
activity is expected in the coming 24 hours, with a slight chance for an
additional >M5 event.
The position of NOAA 14232 on 29-September-2025 at 11:30 UT is
N04E41, (-628", 18")
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 (Queen's University Belfast)
Dear Collaborators,
Solar activity has reached a high level since the last message. The largest
event was an M6.5 flare at 08:34 UT today, produced by NOAA 14232. This
region has increased in its magnetic complexity to be a beta/C-type. 14232
shall become the target region, and we are issuing a Major Flare Watch
alert at this time due to the increased possibility of another >M5 flare
within the coming days.
The position of the NOAA 14232 on 28-Sep-2025 at 11:30 UT is:
N03E57 (-803", -12")
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 low-M level since the last message.
The largest event was an M1.6 flare at 19:49 UT yesterday from an
unnumbered region near the northeast limb. This region also produced
an M1.1 and nine low-C flares. To the south of this limb region, NOAA
14232 (alpha/H-type, N02E71) and NOAA 14226 (beta/C-type, S10W14)
also produced an M1.1 flare at 07:03 UT today and an M1.0 flare at
03:29 UT today, respectively. Today, the target should switch to the limb
region, because of its high productivity. Yesterday’s target, NOAA 14217,
has almost rotated out of Earth-view. Further C-class activity is expected
with more low-M flare possible within the next 24 hours.
The approximate position of the target on 27-Sep-2025 at 11:30 UT is:
N19E71 (-850", 170")
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 is low. The largest event in the past
24 hours was a C3.4 flare at 13:54 UT yesterday from the
target region NOAA 14217. This region also produced four
~C2 flares and was classified as a beta/C-type. Today, the
target will remain with 14217 for a further 24 hours. In addition,
an unnumbered region beyond the northwest limb also produced
five ~C2 flares, including its largest being a C2.4 at 06:14 UT
today. More low-C activity is expected from these two regions
in the next 24 hours.
The position of NOAA 14217 on 26-Sep-2025 at 11:30 UT is:
S17W82 (906", -293")
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 been at a moderate-to-low level since the
last message. NOAA 14224 (beta/C-type, S13W57) produced
the largest event – an M1.6 at 18:57 UT yesterday and a C2.2
flare. The target region, NOAA 14217, was the source of four
low-C flares. It has developed into a beta-gamma/D-type
sunspot group. Today, the target shall continue as 14217 (with
NOAA 14224 in the field of view). Note that NOAA 14226
(beta-gamma/D-type, S11E11) also produced two ~C5 flares
in the period. Further C-class activity is expected with another
low-M flare likely in the following 24 hours.
The position of NOAA 14217 on 25-Sep-2025 at 11:30 UT is:
S17W68 (849", -319")
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 remained at a moderate level in the past 24
hours. The largest event was an M1.0 flare at 09:18 UT today,
produced by a region between NOAA 14224 and the target
region NOAA 14217. 14224 (S13W43) also produced a C6.7
and three low-C flares, although it was downgraded to a
beta/C-type magnetic configuration. 14217 also produced three
~C3 flares and remains a beta-gamma/C-type configuration,
showing signs of new magnetic flux emergence. Today, the
target shall continue as 14217, but if possible, please also
include NOAA 14224 in your field of view. Further C-class
activity is expected with additional low-M flares probable in the
coming 24 hours.
The position of NOAA 14217 on 24-Sep-2025 at 11:30 UT is:
S16W55 (754", -326")
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 reached a moderate level, due to an M1.0
flare at 10:24 UT today from the target region NOAA 14217.
This region has grown in its magnetic complexity to a
beta-gamma/C-type group. Today, the target shall remain with
14217. More C-class activity is expected with another low-M
flare likely over the next 24 hours.
The position of NOAA 14217 on 23-Sep-2025 at 11:30 UT is:
S16W38 (567", -351")
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 increased to an intermediate level since the
last message. The largest event was a C6.6 flare at 21:04 UT
yesterday from a region between NOAAs 14224 (beta-gamma/D-type,
S13W15) and 14223 (alpha/A-type, S17W14). To the east of
14223, NOAA 14217 produced six low-C flares, with its largest
being a C2.7 at 21:27 UT yesterday. 14217 retains a beta/E-type
sunspot group, with the emergence of new spots. Today, the
target shall switch to NOAA 14217. Yesterday’s target, NOAA
14220 (beta-gamma/E-type, S18W62) was merely the source of
a C2.3 flare at 17:01 UT yesterday. Additional low-C activity is
expected in the following 24 hours.
The position of NOAA 14217 on 22-Sep-2025 at 11:30 UT is:
S17W26 (402", -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,
Qiao Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity continues to be low since the last message.
Yesterday's target, NOAA 14216 did not show further activity during
the past 24 hours, while NOAA 14220 resumed to produce flares with
the largest being a C3.4 flare at 19:57 UT yesterday (9/20).
Today, the default target will switch back to NOAA 14220, on the
area of mixed polarity of the trailing sunspot. Additional C class
activities are expected.
The position of the target in NOAA 14220 on 21-September-2025 at
15:30 UT is: S18W47 (673", -368").
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,
Aki Takeda (Montana State University)
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