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)
Dear Collaborators,
Solar activity has reached intermediate levels. The largest event
since the last message was a C6.7 flare at 03:16 UT today produced
by an unnumbered region near the southeast limb, where EUV and
coronagraph images show dynamic activity. Today the target shall
switch to this limb region. Yesterday's target region NOAA 13207
(S13E05, beta/C-type) produced only a few low C-class flares, with
signs of decay. A newly emerged region NOAA 13211 (S16W34,
beta/C-type) also produced a few low C-class flares as well as a C6.4
flare at 10:37 UT. Further high C-class activities are probable in the
following 24 hours.
The approximate position of the target region on 5-Feb-2023 08:30 UT
S15E83 (-900", -200")
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 low levels. The largest event since
the last message was a C2.9 flare at 16:30 UT on 3-Feb-2023
produced by the target region NOAA 13207. This region was
the most productive and produced 4 C-class events, with the
increasing number of spots. Today the target shall remain this
region. Moreover, NOAA 13206 and an unnumbered plage
region (S17E56) also produced several low C-class flares over
the period. Further C-class activities are expected in the following
24 hours.
The position of NOAA 13207 on 4-Feb-2023 12:30 UT
S12E16 (-263", -102")
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 ~C1 level. The largest event since the
last message was a C3.9 flare at 02:31 UT on 3-Feb-2023 produced
by the northwest limb region NOAA 13200. Yesterday's target NOAA
13204 and NOAA 13200 are now beyond the western limb. There were
2 high B-class events from NOAA 13207 which remains a beta/C-type
sunspot group but increases the sunspot area and number of spots.
Today the target will switch back to NOAA 13207, with a possible
increase in activity over the coming days.
The position of NOAA 13207 on 3-Feb-2023 12:30 UT
S12E29 (-463", -112")
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 is at low levels. The largest event since the last
message was a C5.8 flare at 04:24 UT on 1-Feb-2023 produced
by NOAA 13204. 13204 produced 4 C-class flares in the past 24
hours, although it was downgraded to a beta/C-type sunspot
configuration. Yesterday's target (NOAA 13207) and other active
regions on the visible solar disk have been quiescent, so today
the target shall switch to NOAA 13204 before it completely rotates
beyond the west limb. Further C-class activities are expected in
the next 24 hours.
The position of NOAA 13204 on 2-Feb-2023 12:30 UT
N24W91 (888", 391")
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 C3.1 flare at 16:12 UT on 31-Jan-2023
produced by the target region NOAA 13207. This region was still
the most productive and has produced 10 low C-class flares,
remaining a beta/C-type sunspot group. Today the target shall
still be this region. Moreover, some other active regions (NOAA
13206, 13204) also produced a few low-level events over the
period. Further C-class activities are expected in the next 24 hours.
The position of NOAA 13207 on 2-Feb-2023 12:30 UT
S11E58 (-812", -131")
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 C4.8 flare at 10:46 UT on 31-Jan-2023
produced by the limb target region, which was newly numbered as
NOAA 13207 and was classified as a beta/C-type sunspot group.
This region stays the most productive and has produced 6 C-class
flares. Today the target shall still be this region. Please note that a
plage region (N20E24) also produced 4 low C-class flares during
the period. Further C-class activities are expected in the following
24-hour period.
The position of NOAA 13207 on 31-Jan-2023 12:30 UT
S13E64 (-854", -175")
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)