Dear Collaborators,
The level of solar activity is moderate. Target region NOAA 13311
continues to be the most complex sunspot group on the visible disk,
remaining classified as a beta-gamma-delta/E-type spot group. This
region maintained a high frequency of C-class flares since the last
message and was also the source of the largest magnitude flare - an
M3.1 on 23-May-2023 at 12:07 UT. We continue with the MM#003 Major
Flare Watch targeting NOAA 13311 for another 24 hours. Additional
low M-class flares are likely in the next 24 hours, with a chance
for another >M5 flare.
The position of NOAA 13311 on 23-May-2023 at 18:00 UT is:
N18E10 , ( -160", 320" )
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 13311 continues to
be the largest and most complex sunspot group on the visible disk, remaining
classified as a beta-gamma-delta/E-type spot group. This region has been the
source of twelve C-class flares since the last message including the largest
magnitude flare, an M2.6 on 21-May-2023 at 15:49 UT. The MM#003 Major Flare
Watch will remain in effect on NOAA 13311 for at least 24 hours more. Further
low M-class activity is probable over the following 24-hour period, with a
chance for another >M5 flare.
The position of NOAA 13311 on 22-May-2023 at 20:00 UT is:
N18E24 , ( -369", 320" )
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 continues at high levels for the past 24 hours.
The largest event since the last message was an M5.7 at
05/20/14:54 UT produced by the target region NOAA 13311.
13311 also produced another three M-class flares including
an M5.2 at 05/20/22:52 UT. It has been designated as a
beta-gamma-delta/E-type configuration with increasing
the sunspot area and number of spots. Please note that
NOAA 13305 (N12W78, beta/D-type) was the source of
ten C-class flares in the period. Additional low M-class flares
are expected with a chance of another >M5 flare in the next
few days.
The position of NOAA 13311 on May 21 at 11:30 UT
N18E40 (-581", 317")
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,
Ying Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity continues at high levels for the past 24 hours.
The largest event since the last message was an M9.0 at
12:25 UT today from the target region NOAA 13311. This
region was also the source of another 6 M-class (including
an M6.5 and the other being low M-class) flares and it has
been classified as a beta-delta/E-type configuration. 13311
emerged new sunspots and new magnetic fluxes. Today the
Major Flare Watch region shall continue at this region. In
addition, NOAA 13312 (S25E63, beta/C-type) also produced
an M1.1 flare in the period. Further low M-class activities are
expected in the following 24-48 hours, with a good chance
for another above M5 flare.
The position of NOAA 13311 on 20-May-2023 at 11:30 UT
N17E53 (-725", 297")
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, Ying Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has reached a high level for the past 24 hours.
The largest event since the last message was an M5.4 flare
at 00:41 UT today from the target region, which has been
numbered as NOAA 13311. This region also produced another
5 M-class (M1.1, M3.9, M4.5, M1.6, M2.5) plus multiple C-class
flares and has been classified as a beta/D-type configuration
with a high and increasing current helicity. Today the Major
Flare Watch region shall remain this region, which is likely to
remain flare productive. Further low M-class activities are
expected over the following 24-48 hours, with a chance for
another above M5 flare.
The position of NOAA 13311 on 19-May-2023 at 11:30 UT
N18E69 (-842", 305")
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, Ying Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has been at moderate levels for the past 24 hours.
The largest event since the last message was an M2.2 flare at
11:32 UT today from a northeast limb region (unnumbered yet).
This region has also produced four M1 and multiple C-class flares.
Today the Major Flare Watch region will switch to this limb region
because of its recent higher frequency of flaring. Yesterday’s target
was numbered as NOAA 13310 (beta/D-type, S20E67) and only
produced 2 low C-class flares. Another region NOAA 13305 also
produced a C-class flare. Further low M-class activities are very
likely over the following 24-hour period, with a chance for an above
M5 flare.
The approximate position of the target on 18-May-2023 at 11:30 UT
N18E88 (-880", 290")
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, Ying Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has reached a high level for the past 24 hours.
A southeast limb region (unnumbered yet) is the most flare-
productive and has produced 8 C-class flares as well as the
largest event in the period - an M9.6 flare at 16:31 UT on
16-May-2023. At this point, we are implementing a Major Flare
Watch on this limb region. Yesterday’s target NOAA 13305
(beta/D-type, N09W23) was the source of only four C1 flares
with signs of decay. Further C-class activities are expected
over the following 24-hour period, with a chance for another
above M5 flare.
The approximate position of the target on 17-May-2023 at 11:30 UT
S18E88 (-875", -350")
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, Ying Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity continues at low levels for the past 24 hours.
Yesterday’s target NOAA 13306 (S18W57) only produced
a C1.9 flare at 14:40 UT on 15-May-2023, and it was downgraded
to a beta/B-type configuration with decreasing in the sunspot
area. NOAA 13305 has increased in magnetic complexity and
has been classified as a beta-gamma/D-type sunspot group.
13305 is the most flare-productive with the source of 5 C1 flares,
so today the target shall switch to this region. Please note that
an unnumbered region (S23E89) also produced a C2.0 flare.
Further C-class activities are expected in the next 24-hour period.
The position of NOAA 13305 on 16-May-2023 at 11:30 UT
N10W10 (162", 206")
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, Ying Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has returned to low levels for the past 24 hours.
The largest event since the last message was a C3.4 flare at
00:46 UT today from NOAA 13306. 13306 just emerged today
and has been classified as a beta/C-type sunspot group. This
region is the most productive and has produced 6 flares.
Yesterday’s target NOAA 13296 has already rotated beyond
the west limb, so today the target shall switch to NOAA 13306.
In addition, an unnumbered region (S35E88) and NOAA 13305
(N10E07, beta/D-type) also produced a few low-C flares.
Further C-class activities are expected from various regions
in the next 24-hour period.
The position of NOAA 13306 on 15-May-2023 at 11:30 UT
S18W43 (617", -262")
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, Ying Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity continues at intermediate levels for the past 24 hours.
The largest event since the last message was a C7.0 flare at 09:07 UT
today from the target region NOAA 13296. 13296 was the source of 6
C-class flares, although it was downgraded to a beta/D-type configuration.
The other active regions (NOAA 13305, 13297, 13293, 13300) produced
a few low C-class flares in the period. Today the target shall continue at
NOAA 13296 before it completely rotates beyond the west limb. Further
high C-class activities are probable from various regions in the next 24-48
hours with a small chance for an M-class flare.
The position of NOAA 13296 on 14-May-2023 at 11:30 UT
N15W91 (916", 244")
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, Ying Li (Purple Mountain Observatory)