Dear Collaborators,
Solar activity has reached an intermediate level. The largest event
since the last message was an M1.8 flare at 09:23 UT today from
the target region NOAA 13435 (N09E52, beta/C-type). 13435 also
produced another M1.1 plus two low-C flares in the period. Today
the target shall still be this region. Please note that NOAA 13436
(N19W40, beta/D-type) and 13429 (N12W54, beta/C-type) also
produced many low- and mid-C flares during the period. Additional
C-class flares are expected in the following 24-hour period, with a
good chance for further low M-class flares.
The position of NOAA 13435 on 19-Sep-2023 at 07:30 UT is:
N09E52 ( -745" , 76")
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 is at a low level. The largest event since the last message
was a C2.6 flare at 10:31 UT today from the target region NOAA 13435.
13435 retained its beta/D-type configuration and produced another
three C1-class flares in the period. NOAA 13435 shall continue as the
target region. Please note that an active region (unnumbered yet) to
the east of 13435 underwent negative flux emergence in its southern
portion. If possible, please also include this region in your field of view.
Besides, two limb regions (NOAA 13425 and 13430) produced three
C1-class flares as well. Additional C-class activities are expected over
the next 24 hours.
The position of NOAA 13435 on 18-Sep-2023 at 11:30 UT is:
N10E53 ( -752" , 94" )
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,
The level of solar activity is low-to-moderate. Target region NOAA
13429 has decayed since the last message, and is now classified as
a beta-gamma/D-type group. NOAA 13429 has not produced any flares
in the period. NOAA 13435 is a newly numbered region that recently
rotated on disk over the East limb. This region is classified as a
beta/D-type sunspot group and was the most flare-productive region
with being the source of three C-class flares, the largest of which
was a C3.5 on 17-Sep-2023 at 15:55 UT. Further C-class activity is
expected over the next 24 hours.
The position of NOAA 13435 on 17-Sep-2023 at 18:00 UT is:
N10E59 , ( -808", 104" )
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 level. Target region NOAA 13429 has
been stable in terms of spot area and number of spots since the last
message. Its development of a delta configuration late yesterday was
confirmed through its designation as a beta-gamma-delta/D-type group.
NOAA 13429 produced nearly every C-class flare in the period and all
of the three M-class flares that occurred, the largest being an M3.3
on 16-Sep-2023 at 05:28 UT. We are NOT starting an MM#003 Major Flare
Watch at this point mainly because NOAA 13429 has not undergone fresh
flux emergence - this region will be monitored closely in case this
changes. C-class flares are expected in the following 24-hour period,
with a strong chance for more low-to-mid M-class flares.
The position of NOAA 13429 on 16-Sep-2023 at 20:00 UT is:
N11W20 , ( 322", 71" )
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 at a moderate level. Target region NOAA
13429 has evolved slightly since the last message, reported as having
decreased in magnetic classification to be a beta/E-type sunspot group
at the start of the UT day. However, 13429 appears to now have a small
delta configuration in its intermediate spots. NOAA 13429 produced the
vast majority of flare activity in the period with being the source of
many C-class flares and the only M-class flares - an M1.9 and an M2.5
on 14-Sep-2023 at 19:23 UT and 21:17 UT, respectively. Further C-class
flares are expected over the next 24 hours, with a good chance for more
low M-class activity.
The position of NOAA 13429 on 15-Sep-2023 at 18:00 UT is:
N10W05 , ( 82", 47" )
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
13423 has decayed further since the last message, now classified
as a beta/E-type sunspot group. This region produced one C-class
flare in the period, while NOAA 13429 (a beta-gamma/E-type group)
was the source of multiple C-class flares and the largest flare
in the period (an M1.4 on 14-Sep-2023 at 06:40 UT). The increased
activity in NOAA 13429 is related to a period of significant flux
emergence since the last message. Additional C-class activity is
expected in the following 24-hour period, with a good chance for
another low M-class flare.
The position of NOAA 13429 on 14-Sep-2023 at 18:00 UT is:
N10E08 , ( -132", 48" )
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 13423
has undergone slight decay since the last message, but has
remained a beta-gamma/E-type sunspot group classification.
NOAA 13423 produced the two largest flares in the period -
a C5.6 on 12-Sep-2023 at 21:50 UT and a C5.5 on 13-Sep-2023
at 08:04 UT. C-class activity is expected over the next 24
hours, with a chance for another low M-class flare.
The position of NOAA 13423 on 13-Sep-2023 at 18:00 UT is:
N16W54 , ( 742", 193" )
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 level. Target region NOAA 13431
has remained stable since the last message, but developed a weak
delta to be classified as a beta-delta/D-type sunspot group. This
region only produced one C-class flare in the period, while NOAA
region 13425 (a beta/E-type) was the source of an M1.9 flare on
12-Sep-2023 at 04:18 UT and 13423 (a beta-gamma/E-type) produced
the largest magnitude flare - an M2.6 on 12-Sep-2023 at 06:47 UT.
The target switches back to NOAA 13423 because of its return to
M-class flaring. Additional C-class flares are expected over the
following 24-hour period, with a good chance for further M-class
flares.
The position of NOAA 13423 on 12-Sep-2023 at 18:00 UT is:
N16W40 , ( 589", 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,
Shaun Bloomfield (Northumbria University)
Dear Collaborators,
The level of solar activity is moderate. Target region NOAA 13423
has been stable in sunspot area and number of spots since the last
message, but was confirmed as a beta-gamma/E-type sunspot group at
the start of the UT day. This region has only produced one C-class
flare in the period, while NOAA regions 13429 (a beta/C-type) was
the source of an M1.4 flare on 11-Sep-2023 at 01:08 UT and 13431
(a beta/D-type) produced two M1.1 flares on 11-Sep-2023 at 03:58
UT and 14:38 UT. The target switches to NOAA 13431 which appears
to have a more mixed polarity configuration. C-class activity is
expected in the next 24 hours, with a good chance for additional
low-to-mid M-class flares.
The position of NOAA 13431 on 11-Sep-2023 at 22:00 UT is:
S08E48 , ( -701", -212" )
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 level. Target region NOAA 13425 has
decayed slightly in sunspot area and number of spots since the
last message and was confirmed as a beta/D-type sunspot group.
This region has produced two low C-class events in the period,
while NOAA 13423 (beta/E-type sunspot group) increased in its
frequency of flaring and produced the largest magnitude event
in the period (a C8.3 flare on 10-Sep-2023 at 01:41 UT). The
target switches to NOAA 13423 due to its higher flaring rate.
C-class activity is expected over the following 24-hour period.
The position of NOAA 13423 on 10-Sep-2023 at 18:00 UT is:
N12W13 , ( 209", 82" )
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)