Dear Collaborators,
Solar activity remains at a low level since the last message.
The largest event was a C5.0 flare at 12:09 UT today from
NOAA 14114 (beta/E-type, N20W85). This region also
produced three low-C flares as it almost rotated beyond the
west limb. Four low-C flares came from NOAA 14118
(beta/D-type, S13E15), with its largest being a C2.0 flare at
04:56 UT today. The target region NOAA 14117 was flare-quiet
during the period, but it experienced negative magnetic flux
emergence around its leading portion. 14117 should continue
as the target region. If possible, please also include 14118 in
your field of view. Additional C-class flares are expected in the
next 24 hours.
The position of NOAA 14117 on 23-June-2025 at 11:30 UT is
S15E04 (-63", -277")
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 decrease to a low level. The largest
event since the last message was a C1.4 flare at 10:57 UT
today from NOAA 14117. This region retained a beta/D-type
magnetic configuration, with an increase in its sunspot area.
To the southeast of 14117, NOAA 14118 (S14E29) also displayed
visible magnetic flux emergence to become a beta/C-type
group. Yesterday’s target NOAA 14114 only produced a C1.3
flare. Today, we shall end the Major Flare Watch campaign,
and the default target shall switch to NOAA 14117 (with NOAA
14118 in the field of view). More C-class activity is expected
in the following 24 hours.
The position of NOAA 14117 on 22-June-2025 at 11:30 UT is
S15E16 (-252", -274")
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 a moderate level. The largest
event since the last message was an M1.1 flare at 17:21 UT
yesterday from NOAA 14117 (S14E31, beta/D-type). Only five
high-B and low-C flares were produced by the target region
NOAA 14114. 14114 experienced a further decay in its leading
spots but remained a beta-gamma/E-type sunspot group. Today,
the Major Flare Watch will be extended for the final 24 hours
with NOAA 14114. Further C-class activity is probable, with a
slight chance for an isolated >M5 flare in the coming 24 hours.
The position of NOAA 14114 on 21-June-2025 at 11:30 UT is
N18W61 (786", 278")
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 high level. The largest event since
the last message was an X1.9 flare at 23:37 UT yesterday from
the target region NOAA 14114. This region also produced an
M4.6 flare at 00:02 UT today. It retained a beta-gamma/E-type
magnetic configuration, showing signs of decay in its leading
portion. Today, the Major Flare Watch shall continue as NOAA
14114. More C-class activity is expected, with a chance for
another >M5 flare in the next 24-48 hours.
The position of NOAA 14114 on 20-June-2025 at 11:30 UT is
N21W48 (656", 321")
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 decreased to an intermediate level since the
last message. The target region NOAA 14114 produced 12
C-class flares, with the largest being a C8.0 at 09:06 UT. This
region lost its delta configuration to become a beta-gamma/E-type,
but exhibited signs of shearing and additional flux emergence.
Today the Major Flare Watch shall remain with NOAA 14114.
Further C-class activity is expected, with a chance for an isolated
>M5 flare in the following 24 hours.
The position of NOAA 14114 on 19-June-2025 at 11:30 UT is
N18W33 (490", 272")
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. The largest event
in the past 24 hours was an X1.2 flare at 21:38 UT yesterday
produced by the target region NOAA 14114. This region has
remained stable in sunspot area and classification as a
beta-gamma-delta/E-type, showing signs of separation of its
main spots. Today, the Major Flare Watch shall continue as
NOAA 14114. More low-M activity is probable, with another
>M5 flare likely in the following 24 hours.
The position of NOAA 14114 on 18-June-2025 at 11:30 UT is
N18W19 (293", 271")
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. Two ~M1 flares, a M1.1 at 14:43 UT
yesterday and a C9.9 at 06:14 UT today, were attributed
to NOAA 14109 (S17W91, beta/C-type) and an unnumbered
region (S15E89), respectively. The target region NOAA
14114 was only the source of four mid-C flares. It retained
a beta-gamma-delta/E-type magnetic configuration, and
continued to develop additional spots in its intermediate and
tail portions. Today the Major Flare Watch shall be extended
for a further 24 hours with NOAA 14114. More low-M activity
is very likely, with a chance for an isolated >M5 flare in the
following 24 hours.
The position of NOAA 14114 on 17-June-2025 at 11:30 UT is
N18W08 (125", 272")
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 continued at a high level. The largest events
since the last message were an M8.5 flare at 17:45 UT yesterday
and an M6.3 flare at 09:17 UT today from NOAA 14114. This region
has been classified as a beta-gamma-delta/E-type sunspot group,
with an emergence of new visible magnetic fluxes surrounding its
main spots. Yesterday’s target NOAA 14105 showed no M-class
activity as it is currently rotating out of Earth-view. Today the Major
Flare Watch shall switch to 14114 from 14105, due to a higher
probability of another >M5 flare from 14114 in the coming days.
The position of NOAA 14114 on 16-June-2025 at 11:30 UT is
N17E05 (-79", 258")
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 in the last 24 hours. NOAA 14105 was the
source of an M6.8 flare at 22:51 UT yesterday. NOAA 14105 has shown an
increase in activity since the last message as it continues its transit of
the southwest limb. At this time we are issuing a Major Flare Watch with
NOAA 14105 as the target region while it remains in view. Further M-class
activity is anticipated, with the potential for an additional isolated >M5
event in the next 24-48 hours.
The position of NOAA 14105 on 15-June-2025 at 11:30 UT is
S15W78, (892", -248")
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 remains at a low level. A number of flares were produced in
the last 24 hours, the largest being an M1.2 from NOAA 14105 at 20:49 UT
yesterday. NOAA 14105 is now at the southwest limb and still shows a
substantial degree of emerging flux. This region will remain the target
region while it begins its transit over the southwest limb. Further C-class
activity is expected with a slight chance for an additional isolated
M-class flare in the next 24 hours.
The position of NOAA 14105 on 14-June-2025 at 11:30 UT is
S15W66, (834", -250")
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)