Dear Collaborators,
Solar activity is at a low-to-moderate level. Target region NOAA
13421 has continued to fragment since the last message but this
has resulted in increasing its complexity to a beta-gamma/E-type
classification. NOAA 13421 has only produced one C-class flare,
while NOAA 13425 (a beta/D-type group) was the source of several
C-class flares and the largest magnitude event in the period (an
M2.1 flare on 7-Sep-2023 at 18:58 UT). Further C-class activity
is expected over the following 24-hour period, with a chance for
another low M-class flare.
The position of NOAA 13425 on 8-Sep-2023 at 17:00 UT is:
N23E47 , ( -641", 294" )
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 low. Target region NOAA 13421
has shown signs of decay since the last message, its leading
polarity spots fragmenting somewhat. Despite this, 13241 has
remained as a beta/D-type sunspot group classification. This
region has continued to produce C-class activity, including
the largest magnitude event in the period - a C3.5 flare on
6-Sep-2023 at 20:43 UT. More C-class flares are expected in
the next 24 hours, with a small chance for an isolated low
M-class flare.
The position of NOAA 13421 on 7-Sep-2023 at 18:00 UT is:
N14W36 , ( 544", 135" )
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 low-to-moderate level. Target region
NOAA 13421 has grown slightly in spot area since yesterday's
last message, remaining classified as a beta/D-type sunspot
group. NOAA 13421 continues to be the most flare-productive
region, generating multiple C-class flares and two M-class
flares that were the largest magnitude events in the period
(an M1.2 and an M1.0 on 5-Sep-2023 at 19:33 UT and 23:21 UT,
respectively). Additional C-class flares are expected over
the following 24-hour period, with a good chance for further
low M-class activity.
The position of NOAA 13421 on 6-Sep-2023 at 18:00 UT is:
N14W24 , ( 376", 122" )
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
13421 has increased in number of spots and spot area since
the last message. This region has increased in spot maturity
to display penumbrae on both polarity spots, changing it to
a beta/D-type sunspot group. NOAA 13421 continued to be the
most flare-productive region, including being the source of
the largest magnitude flare in the period - an M2.0 flare on
5-Sep-2023 at 08:03 UT. Further C-class activity is expected
in the next 24 hours, with a chance for more M-class flares.
The position of NOAA 13421 on 5-Sep-2023 at 16:00 UT is:
N15W09 , ( 141", 130" )
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 now at a moderate-to-low level. Target region
NOAA 13413 has now rotated over the North West limb. Following
the last message NOAA 13413 only produced low C-class flares.
Newly-numbered NOAA region 13421 (a beta/B-type sunspot group)
has emerged new flux to form several spots through the period,
becoming the most flare-productive region on disk. At this time
we end the MM#003 Major Flare Watch, with the target changing
to NOAA 13421. Additional C-class flares are expected over the
following 24-hour period, with a small chance for a low M-class
flare.
The position of NOAA 13421 on 4-Sep-2023 at 18:00 UT is:
N15E04 , ( -66", 129" )
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 reached a high level since the last
message. The target region NOAA 13413 has produced
multiple flares, the largest being an M6.0 flare at 08:09 UT
today. Although this region rotates towards the northwest
limb, it retains its beta/D-type magnetic configuration.
13413 shall continue as the target region, but we are
issuing a Major Flare Watch alert at this time before it
completely rotates beyond the west limb. Further low
M-class activities are expected with the increased possibility
of another partially occulted >M5 flare within the next 24 hours.
The position of NOAA 13413 on 3-Sep-2023 at 11:30 UT
N10W91 (936",165")
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 slightly increased for the past 24 hours,
with an M3.4 flare at 06:33 UT today produced by the
target region NOAA 13413. 13413 was still classified as a
beta/D-type magnetic configuration. Today the target shall
still be this region. Please note that a spotless region
(S21E45) also produced several flares, the largest being
C7.4. Further C-class activities are expected, with additional
moderate-level activity possible in the following 24-hour period.
The position of NOAA 13413 on 2-Sep-2023 at 11:30 UT
N10W83 (929", 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,
Qiao Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has reached moderate levels since the last
message. The target region NOAA 13413 has produced
three consecutive M1 flares (M1.0, M1.2, M1.2) beginning
at 02:20 UT today. This region was also the source of
several C1 flares. It retains its beta/D-type sunspot group
with an apparent increase in sunspot area. 13413 shall
continue as the target due to its high frequency of flaring
and high current helicity. Please note that NOAA 13415
(S09W51, beta/D-type) also produced two B-class flares.
Further C-class activities are expected with a chance for
another low-M flare in the next 24-48 hours.
The position of NOAA 13413 on 1-Sep-2023 at 11:30 UT
N09W69 (877",105")
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 at low levels. The largest event
since the last message was a C3.0 flare at 23:20 UT on
30-Aug-2023 from NOAA 13413. 13413 was also the
source of a C1.5 flare and it retains its beta/D-type magnetic
configuration. Today the target shall switch to NOAA 13413.
Yesterday’s target NOAA 13417 (S05E39, beta/D-type) was
quiescent in the period. In addition, NOAA 13415 (S09W38,
beta/D-type) and two plage regions (S26W11, N17W49) also
produced a few low-C flares. B-class activities are expected
with low C-class flares probable in the next 24 hours.
The position of NOAA 13413 on 31-Aug-2023 at 11:30 UT
N09W55 (770", 80")
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 at low levels for the past 24 hours.
The largest event was a C4.0 flare at 23:17 UT on
29-Aug-2023 from NOAA 13417. 13417 also produced a
C1.7 plus a B9.9 flares. This region was classified as a
beta/C-type with mixed polarities in the leading portion.
Today the target region shall switch to NOAA 13417.
Yesterday’s target (still unnumbered, N21E81) was the
source of 2 C1 flares and 2 B-class flares but it has a low
and decreasing current helicity. In addition, NOAA 13413
(N09W43, beta/D-type) and NOAA 13415 (S10W26,
beta-gamma/D-type) also produced a C1.3 plus a B8.4
flares. Additional C-class activities are likely from various
active regions with a slight chance of a low M-class flare
in the following 24 hours.
The position of NOAA 13417 on 30-Aug-2023 at 11:30 UT
S07E54 (-764", -184")
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)