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)
Dear Collaborators,
Solar activity continues at the C-level. The largest event since the last
message was a C7.3 flare at 17:18 UT yesterday from beyond the northeast
limb. NOAA 14401 in the northeast quadrant has continued to develop. It has
produced several low C-flares and is now classified as a beta-gamma region.
NOAA 14401 shall be the new target region with further low-level activity
likely.
The position of NOAA 14401 on 25-Mar-2026 at 20:30 UT is:
N25E26, ( -383", 498" )
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,
Ryan Milligan (Queen's University Belfast)
Dear Collaborators,
Solar activity continues at a low level. The largest flares produced in the
last 24 hours were a pair of C1.2 flares from NOAA 13498 at 17:05 UT
yesterday and NOAA 14401 at 17:42 UT yesterday, respectively. NOAA 14400
has changed complexity since the last message and is now classified as a
beta-delta type region. The region still shows some sunspot dynamism
despite the lack of flare production. NOAA 14400 will continue as the
target region for now, with a chance for C-class activity in the next 24
hours.
The position of NOAA 14400 on 24-March-2026 at 12:30 UT is
S12W47, (690", -121")
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 is at a low level. A small number of flares were produced in
the last 24 hours, the largest being a C3.2 from NOAA 14392 at 00:24 UT
today. A new active region has emerged on the solar disk and is numbered as
NOAA 14400. This region has a beta-gamma-delta configuration and has
demonstrated notable aspects of dynamic sunspot activity since its
emergence. The target region will switch to NOAA 14400 for the next 24
hours, with C-class activity expected and potentially more as the region
develops.
The position of NOAA 14400 on 23-March-2026 at 12:30 UT is
S12W32, (500", -102")
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 been at a low level. The largest event
since the last message was a C1.2 flare at 15:58 UT
yesterday from NOAA 14399. This region also produced
three high-B flares. It has been classified as an alpha/H-type
sunspot group as it rotated onto the disk. Today, the target
should switch to 14399. Yesterday’s target, NOAA 14392,
has become flare quiet during the period. B-class activity
is expected, with another low-C flare likely in the following
24 hours.
The position of NOAA 14399 on 22-Mar-2026 12:30 UT is:
S17E75 (-890", -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,
Qiao Li (Purple Mountain Observatory)