Dear Collaborators,
Solar activity is at a low-to-moderate level. The high-lying loops of
target region NOAA 13213 have now rotated completely beyond view over
the North West limb. This region was the source of a final M1.0 flare
on 15-Feb-2023 at 21:05 UT. A a currently unnumbered region that is in
the process of rotating over the North East limb (possibly the return
of previous NOAA region 13201) produced the largest magnitude flare in
the period - an M1.1 on 16-Feb-2023 at 00:19 UT. The Major Flare Watch
now terminates and this North East limb region becomes the new target.
C-class flares are expected over the next 24 hours, with a chance for
more M-class activity.
The approximate position of this region on 16-Feb-2023 at 17:30 UT is:
N25E90 , ( -880", 407" )
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-to-moderate. Target NOAA 13213 has
now rotated over the North West limb. This region continued to be the
most flare-productive region since the last message, being the source
of several C-class and three low M-class flares, including the largest
magnitude flare in the period - an M2.0 on 15-Feb-2023 at 05:16 UT.
The Major Flare Watch will remain in effect for a final 24 hours on
the limb location where 13213 has exited the disk, as this region's
high-lying loops are still visible. More C-class flares are expected
in the following 24-hour period, with a chance for another M-class
flare.
The disk-exiting limb position of NOAA 13213 on 15-Feb-2023 at 19:30 UT is:
N28W90 , ( 856", 459" )
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 13213 has
rotated up to the North West limb since the last message, remaining
classified as a beta-gamma/F-type sunspot group (noting that this is
compromised by foreshortening effects due to proximity to the limb).
This region produced several C-class flares and the largest flare in
the period - an M2.7 on 14-Feb-2023 at 11:59 UT. The current Major
Flare Watch target will remain on NOAA 13213 for at least a further
24 hours as it rotates over the North West limb. Additional C-class
flares are expected over the next 24 hours, with a good chance for
M-class activity.
The position of NOAA 13213 on 14-Feb-2023 at 15:30 UT is:
N28W78 , ( 856", 459" )
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 reached a high level in the past 24 hours. The largest
event since the last message was an X1.1 flare at 15:40 UT today
from NOAA 13217. 13217 was the most productive and also produced
5 low M-class flares. This region emerged new sunspots and has
been classified as a beta-gamma-delta/E-type configuration. Today
the Major Flare Watch region shall switch to NOAA 13217. In addition,
NOAA 13220 (S14E46, alpha/H-type) and NOAA 13222 (N29W84,
beta/D-type) also produced several low M-class flares. Further low
M-class flares are expected with a good chance for additional >=M5
flare in the next 24-48 hours.
The position of NOAA 13217 on 12-Feb-2023 08:30 UT
S09E31 (-496", -55")
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 moderate levels in the past 24 hours.
The largest event since the last message was an M2.2 flare at
07:59 UT today produced by a newly emerged region NOAA 13208
(N09W71, beta/C-type). 13208 also produced three C-class flares.
The target region NOAA 13213 increased in sunspot area and
number of spots and has been classified as a beta-gamma/F-type
configuration. This region produced three M1 (M1.2, M1.7, M1.6)
flares in the period. Today the Major Flare Watch region shall remain
NOAA 13213 for one more day. Please note that some other regions
(NOAA 13220, 13222) also produced several M1 flares. Further low
M-class flares are expected still with a chance of an above M5 flare
in the next 24-48 hours.
The position of NOAA 13213 on 11-Feb-2023 08:30 UT
N30W44 (586", 553")
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 remains at moderate levels for the past 24 hours.
The largest event since the last message was an M3.7 flare at
02:45 UT today produced by NOAA 13213. 13213 also produced
three ~M1 flares during the period. It retains a beta-delta/E-type
classification and is showing mixed polarities in its intermediate
portion. Today the Major Flare Watch region will switch back to
NOAA 13213. Yesterday’s target region NOAA 13217 (S10E56,
beta/D-type) was the source of an M1.4 flare and ten C-class events.
Further low M-class flares are expected, still with a chance of an
above M5 flare in the next 24-48 hours.
The position of NOAA 13213 on 10-Feb-2023 12:30 UT
N30W35 (484", 563")
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
M3.1 flare at 02:45 UT today produced by a newly numbered
region NOAA 13217. 13217 is rotating onto the visible disk
and has been classified as a beta/D-type configuration. This
region also produced two another low M-class flares (M1.5
and M1.1). It shows a high and increasing current helicity.
Today the Major Flare Watch region will switch to NOAA 13217.
But if possible, please also include the southeast limb region
(S12E85) in your field of view, which produced an M2.9 at 08:49 UT
today. Yesterday’s target region NOAA 13213 (beta-delta/E-type)
produced 3 M1 flares in the period, with emerging new sunspots
and new magnetic fluxes. Additional low M-class flares are expected
from various regions with a chance of an above M5 flare in the next
24-48 hours.
The position of NOAA 13217 on 9-Feb-2023 12:30 UT
S07E65 (-876", -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,
Qiao Li, Ying Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity was at a high-M level in the past 24 hours. The
target region NOAA 13213 produced an M6.4 flare at 23:05 UT
on 7-Feb-2023 and also 3 low M-class (M1.5, M3.8, and M2.1)
plus multiple C-class flares. 13213 has been classified as a
beta-gamma/D-type today, with a higher complexity of configuration
and an apparent increase of sunspot area. At this time we implement
a Major Flare Watch campaign. In addition, an M1.0 event at 13:33
on 7-Feb-2023 was from a southeast limb region (S14E88). Further
low M-class activities are expected with a chance of another >M5
flare over the coming days.
The position of NOAA 13213 on 8-Feb-2023 08:30 UT
N31W06 (87", 593")
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. The largest event since
the last message was a C3.6 event at 06:00 UT today produced
by NOAA 13213. 13213 just emerged today and has been classified
as a beta-gamma/C-type sunspot group. This region is the most
productive and has produced more than 10 flares. Today the target
shall switch to this region. Yesterday's target region NOAA 13211
(S17W64, beta/D-type) produced only a C1.5 flare in spite of an
increasing magnetic complexity. Moreover, newly-emerged regions
NOAA 13216 (N24E60, alpha/H-type) and NOAA 13214 (N10E26,
beta/D-type) produced a few low-C flares. Further low C-class
activities are expected and high C-class flares are very likely in the
following 24-hour period.
The position of NOAA 13213 on 7-Feb-2023 12:30 UT
N29E06 (-89", 565")
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 intermediate levels. The largest event
since the last message was a C7.9 flare that happened just now
(at 11:58 UT) from NOAA 13211. 13211 emerged yesterday and
remains a beta/C-type sunspot group today. It increases the
sunspot area and number of spots and shows opposite magnetic
polarities in its leading portion. Today the target shall switch to this
region. Yesterday's limb target (S15E83) has remained quiescent.
NOAA 13210 (S17W36) has produced a C1 event, with magnetic
signs of decay. Additional high C-class activities are probable in the
next 24 hours.
The position of NOAA 13211 on 6-Feb-2023 12:30 UT
S17W48 (693", -214")
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)