Dear Collaborators,
Solar activity has increased to a high level since the last message.
The largest event in the period was an M7.5 flare at 01:07 UT today
from the target region NOAA 14409 (N02W08; see the SSW Latest
<https://www.lmsal.com/solarsoft/latest_events/#Contiguous_C2.3_and_M7.5_AR4…>
Events entry
<https://www.lmsal.com/solarsoft/latest_events/#Contiguous_C2.3_and_M7.5_AR4…>).
This region has remained the dominant source of
activity on the visible disk, producing numerous C-class flares and
two additional low-M flares (M1.7 and M1.2) during the period. 14409
retains a beta-gamma configuration, and its leading sunspots are
showing signs of shearing and ongoing flux emergence. At this time,
we are implementing a Major Flare Watch with NOAA 14409. Further
C-class activity is expected, with a chance of an isolated >M5 flare
over the next 24–48 hours.
The position of NOAA 14409 on 4-Apr-2026 at 11:30 UT is:
N02W08 (133",139")
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 to a moderate level since the last message.
The largest event during the period was an M3.5 flare from NOAA 14404
(N13W28, beta/C-type). The target region, NOAA 14409 (N02E06),
produced more than ten C-class flares and two M1.3 flares during the
period. 14409 has increased in magnetic complexity and is now classified
as beta-gamma/D-type. Today, NOAA 14409 will remain the target region.
Additional C-class flares are expected, with a chance of additional low-M
flares over the next 24 hours.
The position of NOAA 14409 on 3-Apr-2026 at 11:30 UT is:
N02E06 (-100",140")
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 largest event
in the period was a C8.1 flare at 19:47 UT yesterday from NOAA 14409
(N02E17, beta/D-type). This region also produced seven additional
C-class flares during the period, including two ~C5 flares. Yesterday’s
target, NOAA 14405 (beta-gamma, E-type), produced only a few high
B-class flares during the period. Today, the target should be switched
to NOAA 14409. Additional C-class activity is expected over the next
24 hours.
The position of NOAA 14409 on 2-Apr-2026 at 11:30 UT is:
N02E17 (-281",137")
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 low level. The largest event since the
last message was a C1.3 flare at 10:49 UT today from NOAA
14409 (N02E32, beta/D-type). The target region NOAA 14405
(S27E11, beta-gamma/E-type) produced several ~C1 flares
during the period, the largest being a C1.2 flare. We are ending
the Major Flare Watch but will continue to monitor NOAA 14405
as the target region. Additional C-class activity is expected over
the next 24 hours.
The position of NOAA 14405 on 1-Apr-2026 at 11:30 UT is:
S27E11 (-163",-338")
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 level, with the GOES 1-8 flux mostly flat at
~C1.
The largest event since the last message was a C3.1 flare from the target
NOAA 14405 (beta-gamma/E-type) at 11:48 UT yesterday. Today, the
Major Flare Watch remains focused on NOAA 14405, particularly the
northern part of the main trailing sunspot, where flux emergence is
evident.
Further C-class activity is expected, with a chance of an isolated >M5
flare
within the next 24 hours.
The position of NOAA 14405 on 31-Mar-2026 at 11:30 UT is:
S27E25 (-362",-345")
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,
An X1.5 flare was produced by the target region 14405 (S27E37,
see the SSW Latest Events entry
<https://www.lmsal.com/solarsoft/latest_events/#Eruptive_X1.5_AR_4405_S25E45…>)
at 02:47 UT today. This region
retains a beta-gamma/E-type magnetic configuration. At this time,
we will implement a Major Flare Watch campaign with NOAA 14405.
Further C-class activity is expected, with a chance for >M5 flares
in the next 24-48 hours.
The position of NOAA 14405 on 30-Mar-2026 at 11:30 UT is:
S27E37 (-516",-355")
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 low level. A small number of flares were
produced over the last 24 hours, the largest being a C2.1 from NOAA 14407
at 04:48 UT today. NOAA 14405 is now classified as a beta-gamma type region
as it progresses further onto the disk. At present this region remains
relatively quiet, with low levels of emerging flux. However, for now, this
region will remain the target region. Further C-class activity is expected
in the next 24 hours.
The position of NOAA 14405 on 29-March-2026 at 15:30 UT is
S26E46, (-622", -349")
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 consistent. The target region has now been assigned
as NOAA 14405 and this region produced the largest flare of the last 24
hours - an M1.3 at 02:16 UT today. This region is currently classified as a
beta-type region and currently shows relatively stable sunspot activity.
The target region will continue as NOAA 14405, with further C-class
activity expected in the next 24 hours and a slight chance for further
isolated M-class events.
The position of NOAA 14405 on 28-March-2026 at 16:30 UT is
S25E56, (-723", -347")
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 consistent. A number of flares were produced
from a currently unnumbered active region beyond the southeastern limb, the
largest being a partially occulted C5.4 at 09:48 UT today. NOAA 14403 has
remained relatively quiet since the last message. Given the activity
extending from the region about the southeastern limb, the target region
will switch to the southeastern limb. Further C-class activity is expected
in the next 24 hours.
The approximate position of the target region on 27-March-2026 at 12:30 UT
is:
S22E76, (-865", -334")
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 persists at a low level. Several flares were produced since
the last message, the largest being an M3.9 from a newly numbered active
region, NOAA 14403, at 06:11 UT today. NOAA 14403 is currently positioned
about the northeastern limb, and while this region is currently classified
as an alpha type region, it may develop as it progresses across the solar
disk. As this region has been the most productive in the last 24 hours the
target region will switch to NOAA 14403. Further C-class activity is
expected, with the chance for additional isolated M-class flares in the
next 24 hours.
The position of NOAA 14403 on 26-March-2026 at 08:30 UT is
N16E62, (-817", 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,
Harry Greatorex (Queen's University Belfast)