Dear Collaborators,
Solar activity continues to be at a medium level. The largest event
in the past 24 hours was an M3.9 flare from behind the Southwest
limb, probably due to the eruption of the filament located between
NOAA 13990 and 13991 followed by a bright post-flare loop arcade.
The target region, NOAA 13998 has significantly increased its size
(from 290 to 430 millionths) and continues to show a sign of flux
emergence. This region produced 2 M class flares (M1.3 at 2:25 UT
and M3.6 at 11:20 UT both on 2/25) and the latter event occurred
between the leading negative sunspots and NOAA 13996's following
positive sunspots. Today we will continues to observe NOAA 13998
on the area of leading (negative) sunspot, expecting additional C to
M class events.
The position of the target in NOAA 13998 on 25-February-2025 at
16:30 UT is: S13W53 (755", -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 continues to be at a medium level. An X2.0 flare was
produced from the West limb region, NOAA 14001 at 19:22 UT on 2/23,
followed by an M1.3 at 01:33 UT today. However, this region is now
located far behind the limb, and thus we do not select as the target
of the observations for the next 24 hours.
The second largest event was from an M3.3 event from NOAA 14000
at 06:53 UT today, but no other flare record so far. On the other hand,
yesterday's target, NOAA 13998 continues to show flare activity with
the largest being an M1.0 event at 16:18 UT on 2/23. Although this
region does not have a delta configuration anymore, its size is still
growing and showing dynamic sunspot motions. We will continues to
observe the center portion of NOAA 13998 for the next 24 hours.
Additional C to low-M class flares are expected.
The position of the target in NOAA 13998 on 24-February-2025 at
16:30 UT is: S12W35 (550", -112").
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 Colleagues,
Solar activity has increased to a medium level since the last message.
The largest event was an M4.9 event at 2:00 UT today(2/23) from NOAA
14001 approaching the West limb. This region produced 2 C8 class
flares yesterday and another M class flare today (M1.6 at 11:47 UT)
but will complete the limb passage today.
The target region, NOAA 14000 developed mix polarity in the following
sunspots and now classified as a beta-gamma-delta type. However, it
is kind of dormant with respect to flare activity with no flare record
in the past 24 hours. On the other hand, NOAA 13998 underwent
significant flux emergence with its size increased from 220 to 280
millionths during the past 24 hours. This region is producing more
than 10 C class flares and an M1.0 at 09:54 UT today, showing rapid
sunspot movements. Today we will observe NOAA 13998 at the region of
new sunspots for the next 24 hours.
The position of the target in NOAA 13998 on 23-February-2025 at 16:30 UT is:
S12W23 , ( 371", -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,
Aki Takeda (Montana State University)
Dear Collaborators,
Solar activity has returned to a low level since the last message.
The largest event was a C8.2 flare at 2:43 UT today(2/22) from an
unnumbered region newly emerged in the Northwest quadrant and is
approaching the limb. NOAA 13990, a sigmoid region produced 5 C
class events including a C8.0 at 16:01 UT on 2/21, but significantly
reduced in size and is undergoing a West limb passage.
Yesterday's target, now designated as NOAA 14000, produced 3 C
class flares with the largest being a C7.5 at 3:17 UT today. All of these
occurred from the area of following (negative) polarity. We will continue
to observe this region for another 24 hours, expecting additional C to
low-M class events.
The position of the target in NOAA 14000 on 22-February-2025 at
16:30 UT is: N17E01 (-17", 398").
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 low-to-medium level since the last
message. A new region emerged early 2/20 in the Northeast quadrant
grew rapidly and produced 2 M class flares (M3.4 at 12:05 UT and
M1.4 at 14:31 UT both on 2/21).
Yesterday's target NOAA 13996 has quieted since the last message with
no flare record, while NOAA 13998, the target of 2/19 increased in area
but dropped delta configuration (now classified as a beta-gamma type).
Today, we will observe the new target (yet unnumbered) in the
Northeast quadrant for the next 24 hours, expecting additional C to M
class activity.
The position of the target on 21-February-2025 at 16:30 UT is:
N16E10 (-174", 378").
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 continues to be low since the last message. The largest
event was a C8.1 flare at 23:23 UT on 2/19 from NOAA 13990, a large
sigmoid region.
The target region, NOAA 13998 produced only a few low-C class activity
in the past 48 hours, while new flux is emerging from the Northeast of
the main negative sunspot. NOAA 13996 also has new flux emergence
at the center of the leading and following sunspots, showing several
low-to-mid C class activities in the past 24 hours. Several positive
satellite spots appeared in the Eastern vicinity of the negative leading
sunspot of NOAA 13996. Today, we will observe the leading sunspot of
NOAA 13996 as the default target. Additional C class flare or larger are
expected.
The position of the target in NOAA 13996 on 20-February-2025 at 16:30
UT is: S16W03 (57", -163").
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 continues to be at a low level. The largest event in the
past 24 hours was a C4.2 flare at 10:41 UT on 2/19 from NOAA
13997 located near central meridian. NOAA 13990, a large sigmoid
region in the Western hemisphere produced 2 C3 class flares on 2/19.
The target region, NOAA 13998 has somewhat quieted, having produced
no flare events for more than 36 hours. However, it maintains magnetic
configuration of a beta-delta type and showing new flux emergence
with sunspot motion. We will continue to observe NOAA 13998 at the
region of flux emergence for the next 24 hours. Several C class events
are expected.
The position of the target in NOAA 13998 on 19-February-2025 at 16:30
UT is: S12E31 (-493", -116").
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 remains to be low since the last message. The largest
event was a C5.7 flare at 00:47 UT on 2/18 from NOAA 13990. The target
region, NOAA 13992 did not show further development in magnetic
configuration only having produced several low-to-mid C class flares
in the past 24 hours and now during the West limb passage.
NOAA 13998 is a new region that emerged a few days ago at the East of
NOAA 13996 and showing more than 20 low-to-mid C class flares since then.
This region is adding size and magnetic complexity and classified as a
beta-delta type. We will observe the center portion of NOAA 13998 as a
default target for the next 24 hours. Additional C class flares or larger
are
expected.
The position of the target in NOAA 13998 on 18-February-2025 at 16:30
UT is: S13E44 (-661", -149").
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 continued to be at a low level, but slightly increased
since the last message. The largest event was an M1.0 flare at
15:07 UT today from NOAA 13992 approaching the West limb.
This region is experiencing new flux emergence at the Northwest
of the main positive sunspot and having produced 5 low-to-mid C
class flares in the past 24 hours.
We will observe the Northwest region of NOAA 13992 as the default
target for the next 24 hours. Additional C class flares are expected
with the chance of another M class event.
The position of the target in NOAA 13992 on 17-February-2025 at 16:30
UT is: S05W76 (936", -72").
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 levels remain low. A small number of C-class flares were
produced, the largest being a C3.9 at 23:56 UT yesterday from NOAA 13996.
There has been minimal sunspot dynamism as most active regions on the disk
appear relatively stable. For now, NOAA 13990 will continue as the target
region. Further C-class activity is expected
The position of NOAA 13990 on 16-February-2025 at 12:30 UT is:
S09W61, (117", -36")
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)