Dear Collaborators,
The level of solar activity is moderate. Target region NOAA 13576 has grown
marginally in terms of sunspot area since the last message by consolidating
some spots, and it remains classified as a beta-gamma-delta/F-type sunspot
group. NOAA 13576 was the most flare-productive region in the period, with
multiple C-class and two M-class flares (an M3.5 and M1.8 on 8-Feb-2024 at
12:41 UT and 15:17 UT, respectively), which includes the largest magnitude
flare. Further C-class flaring is expected in the next 24 hours, with good
chances for additional M-class flares.
The position of NOAA 13576 on 8-Feb-2024 at 16:30 UT is:
S15E51 , ( -732", -185" )
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,
Shaun Bloomfield (Northumbria University)
Dear Collaborators,
Solar activity is at a moderate-to-high level. Target region NOAA 13576
has displayed polarity mixing and separation of its main spots since the
last message, so was re-classified as a beta-gamma-delta/F-type sunspot
group. This region produced several C-class flares and an M1.4 flare on
7-Feb-2024 at 17:41 UT. NOAA 13575 showed signs of decay and produced an
M5.2 flare on 7-Feb-2024 at 03:04 UT as it rotated up to the South West
limb. Despite NOAA 13575 producing a >M5 flare, at this stage the target
region will remain as NOAA 13576 due to its delta spot involving a long
narrow excursion into the main leading spot. Additional C-class activity
is expected over the following 24-hour period, with a good chance for
more M-class activity.
The position of NOAA 13576 on 7-Feb-2024 at 22:00 UT is:
S16E34 , ( -524", -180" )
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,
Shaun Bloomfield (Northumbria University)
Dear Collaborators,
The level of solar activity is moderate. Target region NOAA 13576 has been
stable in terms of sunspot area and number of spots since the last message
and remains classified as a beta-delta/E-type sunspot group, but may also
have a gamma classification move visible as this rotates further on disk.
This region produced only C-class flares in the period, while NOAA 13575
produced an M4.3 flare on 6-Feb-2024 at 02:37 UT - the largest magnitude
flare. NOAA 13575 has undergone some consolidation of spots over the past
2 days and is classified as a beta-gamma-delta/D-type sunspot group. The
default target region will remain with NOAA 13576 due to its overall size
and prior flaring history. Further C-class flaring is expected in the next
24 hours, with a chance for more M-class flares.
The position of NOAA 13576 on 6-Feb-2024 at 11:00 UT is:
S15E51 , ( -732", -185" )
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,
Shaun Bloomfield (Northumbria University)
Dear Collaborators,
Solar activity has returned to a moderate level in the last 24 hours.
The largest event since the last message was an M1.4 flare at
11:40 UT today from the target region, which was now numbered
as NOAA 13576. This region was classified as a beta/D-type
configuration. It was still the most productive and became more
active, with a high and increasing current helicity. Today the target
shall remain with NOAA 13576. Further C-class activities are
expected, with a good chance of another low-M flare in the following
24 hours.
The position of NOAA 13576 on 4-Feb-2024 at 12:30 UT is:
S17E75 (-899", -257")
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 has decreased slightly since the last
message. An unnumbered region near the South East limb
produced the largest flare that was a C7.7 flare at 05:31 UT today.
This region also produced a C5.8 flare and 4 low-C flares, where
EUV images show dynamic activities. Today the target shall switch
to this limb region. Yesterday’s target region NOAA 13571 was only
a source of 3 low-level flares, with signs of decay. Further C-class
activities are expected, with a low-M flare likely in the coming
24-48 hours.
The approximate position of the target on 3-Feb-2024 at 11:30 UT is:
S16E88 (-950", -300")
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 reached a moderate level. The largest event
since the last message was an M1.2 flare at 02:52 UT today
from NOAA 13571. This region was also the source of a C5.7
flare plus several low-C flares. It has been classified as an
alpha/H-type sunspot group, with the emergence of new magnetic
fluxes. 13571 should become the new target due to its recent
high frequency of flaring activity. Yesterday’s target NOAA 13567
only produced a C1 flare. Further C-class activities are expected,
with a chance of another low-M flare in the following 24 hours.
The position of NOAA 13571 on 2-Feb-2024 at 12:30 UT is:
S16E54 (-758", -209")
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 a low level in the past 24 hours.
Target region NOAA 13567 was a source of 6 C1 flares. It continued
to be classified as a beta/D-type configuration and to increase in
sunspot area and counts. Today the target shall remain with NOAA
13567. Please also note that a newly emerged region (N25E02)
that was unnumbered yet produced the largest event, a C3.1 flare
at 07:22 UT today. Additional C-class activities are expected in the
next 24-hour period.
The position of NOAA 13567 on 1-Feb-2024 at 12:30 UT is:
N19E47 (-674", 381")
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 been still at an intermediate level since the
last message. Yesterday’s target region NOAA 13559 produced
6 C-class flares, including the largest magnitude flare (a C5.7
flare at 17:34 UT on 30-Jan-2024), but it has almost rotated
beyond the west limb. A newly numbered region NOAA 13567
has been classified as a beta/D-type configuration. It was a
source of several low-C flares and has shown signs of additional
flux emergence in the period. Today we shall end the Major Flare
Watch campaign, and the default target shall switch to NOAA
13567. Further C-class activities are expected in the following
24 hours.
The position of NOAA 13567 on 31-Jan-2024 at 08:30 UT is:
N20E65 (-830", 371")
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 become high-to-intermediate levels in the
past 24 hours. The target region NOAA 13559 was a source
of 2 high-C (C6.0 and C5.9) and 6 low-C flares. 13559 has
been downgraded to be a beta-gamma/E-type sunspot group,
but its proximity to the limb hampers accurate classification.
The looptops of NOAA 13559 shall continue as the target region
and the Major Flare Watch will be extended for a further 24 hours,
with a slight chance of a partially occulted M-class flare.
The position of NOAA 13559 on 30-Jan-2024 at 12:30 UT is:
N26W90 (874", 424")
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 reached a high-M level, due to a long-duration
M6.8 flare at 03:54 UT today produced by the target region
NOAA 13559. This region also produced an M1.3 plus several
C-class flares. It maintains its magnetic complexity with a
beta-gamma/F-type configuration, although it rotates towards the
North West limb. The target shall continue as NOAA 13559, but
we are implementing a Major Flare Watch campaign at this time
because of the increased possibility of another >M5 flare within
the following 24-48 hours.
The position of NOAA 13559 on 29-Jan-2024 at 08:30 UT is:
N26W75 (846", 447")
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)