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)
Dear Collaborators,
Solar activity has dropped to a very low level since the last
message. The largest event was a B7.3 flare at 22:19 UT
yesterday from the target region NOAA 14392. This region
still shows a beta-gamma/C-type magnetic configuration
and remains the largest sunspot area on the disk. Today,
the target shall continue at this region. Elsewhere, two
regions including NOAA 14397 (N17E50, beta/C-type) in
the northeast quadrant produced three low-to-mid B-class
flares. B-class activity is expected, with a low-C flare likely
in the next 24 hours.
The position of NOAA 14392 on 20-Mar-2026 08:30 UT is:
S17W31 (476", -183")
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 was low in the past 24 hours. The
target region NOAA 14392 remained highly productive,
producing multiple low-C and B-class flares, with the largest
event being a C3.6 at 12:53 UT yesterday. Despite showing
a slight decay in its sunspot area and number, the region has
maintained its beta-gamma/C-type magnetic complexity.
Further C-class flares are expected, with a chance for a low-M
flare in the coming days.
The position of NOAA 14392 on 19-Mar-2026 12:30 UT is:
S17W19 (301", -173")
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 moderate levels. An M2.7 flare
at 08:05 UT today was produced by the target region NOAA
14392. This region also produced three ~B6 and three low-C
flares since the last message. It continues to exhibit a
beta-gamma/C-type sunspot group, accompanied by increases
in both sunspot area and number. Close to the northeast of
14392, NOAA 14394 (S12E03) produced an M1.3 flare at 08:55
UT yesterday. More C-class flares are expected, with a chance
for an additional low-M flare in the following 24-hour period.
The position of NOAA 14392 on 18-Mar-2026 12:30 UT is:
S16W06 (97", -150")
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 moderate level in the last 24
hours. The largest event was an M1.3 flare at 08:55 UT today,
produced by the target region NOAA 14392. This region was
also the source of a low-C plus three B-class flares during the
period. It has continued to exhibit the emergence of mixed
magnetic fluxes surrounding its well-developed sunspot, and
has been classified as a beta-gamma/C-type configuration.
Today, the target region shall remain with 14392. C-class flares
and another low-M flare are likely in the next 24 hours.
The position of NOAA 14392 on 17-Mar-2026 08:30 UT is:
S16E10 (-161", -151")
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 moderate level since the last
message. The most productive region was the target region
NOAA 14392. It has produced an M2.8 flare at 12:00 UT today
and four B-class flares in the period. This region retained a
beta/C-type sunspot group, showing the emergence of mixed
magnetic fluxes surrounding its main spot. Today, the target
region will continue at 14392. Additional C-class activity is
possible in the coming 24 hours.
The position of NOAA 14392 on 16-Mar-2026 08:30 UT is:
S16E23 (-363", -158")
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 at a moderate-to-low level since the
last message. The largest event in the last 24 hours was an M1.0 flare
at 09:21 UT today(3/15) from NOAA 14392 in the Southeast quadrant.
The target region, NOAA 14384 produced several high-B to low-C class
flares since yesterday but now it completed Northwestern limb transit
and the bright core of EUV emission above this region rotated behind
the limb. NOAA 14393, approaching the North central meridian, has also
been the source of several high-B to low-C class events, but is losing
its sunspot area.
NOAA 14392 is the source of only an M1.0 flare in the last 24 hours,
but is undergoing flux emergence in its Northeast and Northwest
vicinites. Today, we will switch the default target to NOAA 14392,
on the Northwest side of the main sunspot, which is the source region
of the M1.0 event. C class activities are expected.
The position of the target in NOAA 14392 on 15-March-2026 at
16:30 UT is: S15E30 (-472", -148").
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)
--
Dear Collaborators,
Solar activity has been at a moderate-to-low level since the last
message. The largest event in the last 24 hours was a C8.9 flare at
20:19 UT yesterday(3/13) from NOAA 14392 in the Southeast quadrant.
This region added several tiny sunspots in its surrounding area since
yesterday, but has been flare-quiet after the C8.9 event.
Yesterday's target, NOAA 14384 on the Northwestern limb, produced
more than 10 high-B to low-C class flares in the last 24 hours.
The EUV loop system over this region is showing dynamic activity
over the limb. In the next 24 hours, NOAA 14384 remains to be the
target region, expecting additional C class events on or from behind
the Northwestern limb.
The position of the target in NOAA 14384 on 14-March-2026 at
15:30 UT is: N09W83 (945", 175").
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)
Dear Collaborators,
Solar activity has increased to a moderate level since the last
message. The largest event in the last 24 hours was an M1.2 flare at
9:40 UT today(3/13) from NOAA 14384 approaching the Northwest limb.
The trailing portion of this region underwent further significant
flux emergence to grow the new sunspot to a comparable size with its
original leading sunspot. Three low-to-mid C class flares were also
reported from this region in the last 12 hours, while yesterday's
target, NOAA 14393 only produced two low-C class flares since the
last message.
Today, we will switch our target to NOAA 14384, expecting additional
C to M class events during its Northwest limb transit.
The position of the target in NOAA 14384 on 13-March-2026 at 16:00 UT
is: N09W72 (905", 195").
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)