Dear Collaborators,
Solar activity continues at a very low level. The largest event
since the last message was a C2.6 flare at ~04:00 UT today
from NOAA 13256 (S23W38). 13256 has increased in size and
complexity, and is now classified as a beta-gamma/E-type region.
Today the target shall switch to this region. The neighbouring
regions NOAA 13257 (S27W18, alpha/H-type) and 13259 (S22W24,
beta/C-type) also produced a few low C-class flares during the
period. Please also include NOAA 13257 and 13259 in your field
of view if possible. Further C-class activities are expected in the
next 24 hours.
The position of NOAA 13256 on 26-Mar-2023 at 11:30 UT is:
S23W38 (546",-291")
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, Ying Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity continues at a very low level. A series of low
C-class and high B-class flares were produced by various
regions during the period. The largest event in the period
was a C2.2 flare at ~13:10 UT on 24-Mar-2023 from the
target region NOAA 13259. 13259 grew slightly in terms of
sunspot group and has been designated as a beta/C-type
classification. Today the target will stay on this region. If
possible, please also include the neighbouring NOAA 13257
(S27W08) and 13256 (S23W28) in your field of view. Additional
low C-class flares are expected from various regions in the
next 24-48 hours.
The position of NOAA 13259 on 25-Mar-2023 at 16:30 UT is:
S21W15 (233", -239")
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, Ying Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity continues at a very low level. The largest event
since the last message was a C1.7 flare at 06:04 UT today
from the target region NOAA 13259. 13259 retains a beta/B-type
classification and also produced a B9 flare in the period.
NOAA 13259 shall continue as the target region for the next
24 hours. Please note that some other active regions,
NOAA 13257 (S27E07), 13262 (S18E49), 13260 (N20E09)
and a spotless region (S16E25) also produced several high
B-class flares during the period. If possible, please also include
NOAA 13257 in your field of view. More high B-class and low
C-class activities are expected in the next 24 hours.
The position of NOAA 13259 on 24-Mar-2023 at 12:30 UT is:
S22W00 (0", -251")
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, Ying Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has continued at low levels since the last message.
Yesterday's target region NOAA 13257 (S23E20, beta/C-type) was
quiescent in the past 24 hours. The largest event was a C2.6 flare
at 03/22/19:07 UT from NOAA 13259 (S22E13, beta/B-type), which
also produced two C1 flares and one high B-class flare during the
period. 13259 is emerging negative fluxes. Today the target shall
switch to this region. If possible, please also include the neighbouring
NOAA 13257 and 13256 (S22W00) in your field of view due to their
closely connected magnetic loops. Further C-level activities are
expected, with a slight chance for a low M-class flare over the next
24 hours.
The position of NOAA 13259 on 23-Mar-2023 at 12:30 UT is:
S22E13 (-201", -253")
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, Ying Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has been at a low level since the last message.
Yesterday's target region NOAA 13256 (S23E12, beta/C-type)
was quiescent during the period. The largest event was an
impulsive C4.6 flare at 03/21/13:46 UT from NOAA 13257
(S28E33, alpha/H-type) which also produced another three
low C-class flares in the period. Today the target shall switch
to this region. The nearby region NOAA 13259 (S23E24,
beta/B-type) also produced two C1 flares during the period.
If possible, please also include NOAA 13259 and 13256 in
your field of view. Further C-level flares are expected in the
following 24 hours, with a slight chance for a low M-class flare.
The position of NOAA 13257 on 22-Mar-2023 at 12:30 UT is:
S28E33 (-464",-363")
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, Ying Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has diminished slightly since the last message.
The largest event in the period was a C5.2 flare at 03/20/09:24 UT
from the target region NOAA 13256 (S20E32, beta/E-type). The
neighbouring regions NOAA 13257 (S27E47, beta/D-type) and
13259 (S21E39, beta/C-type) also produced several low C-class
flares during the period. Today the target will continue on
NOAA 13256 due to high current helicity and magnetic complexity
along with its nearby regions. More C-level activities are expected
in the next 24 hours, with a slight chance for low M-class flares.
The position of NOAA 13256 on 21-Mar-2023 at 12:30 UT is:
S20E32 (-481", -234")
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, Ying Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has increased to a moderate level since the last message.
The largest event was an M1.3 flare at 01:19 UT today produced by the
target region NOAA 13256 (S22E49). 13256 retains a beta/E-type
configuration and also produced 4 C-class flares in the period. Today
the target shall remain on this region. Moreover, the nearby region
NOAA 13257 (S27E63, alpha/H-type) has remained active and also
produced several low C-class flares during the period. If possible,
please also include NOAA 13257 in your field of view. More C-class
activities are expected in the following 24-48 hours, with a chance for
additional low M-class flares.
The position of NOAA 13256 on 20-Mar-2023 at 08:30 UT is:
S22E49 (-675", -286")
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, Ying Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity is at a moderate-to-low level since the last message.
The largest event in the period was a C4.5 flare at 06:30 UT today
from the target region NOAA 13256 (S22E61, beta/E-type). 13256
was also the source of other seven low C-class flares. The target
will continue on this region. Please note that the nearby limb region
is rotating onto the visible solar disk and has been numbered as
NOAA 13257 (S27E77) with a beta/D-type configuration, which also
produced eight low C-class flares in the period. Therefore, please
also include NOAA 13257 in your field of view if possible. Further
C-class activities are expected over the next 24 hours, with a slight
chance for low M-class flares.
The position of NOAA 13256 on 19-Mar-2023 at 08:30 UT is:
S22E61 (-783",-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,
De-Chao Song, Ying Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has been at a moderate level since the last message.
The largest event was an M1.1 at 03/17/15:04 UT produced by
NOAA 13254 (S24W76, beta/B-type). 13254 also produced a C7.3
flare and is rotating to the west limb. Today the target will continue
on the east limb region that has been numbered as NOAA 13256
with an alpha/H-type sunspot group. 13256 produced three C-class
flares, the largest one being a C9.4 at 03/18/07:10 UT. If possible,
please also include the nearby limb region (S25E86) in your field
of view, which has also produced three C-class flares. More C-class
activities are expected with a chance for low M-class flares in the
next few days.
The position of NOAA 13256 on 18-Mar-2023 at 12:30 UT is:
S21E66 (-823", -298")
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, Ying Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has increased slightly since the last message.
The southeast limb target (unnumbered yet) is rotating onto
the visible solar disk and has produced six C-class flares,
including two C6.4 flares that erupted at 06:12 UT and 06:45 UT
today. The target will continue on this region. More C-class
flares are expected in the next 24 hours, with a chance for a
low M-class flare.
The approximate position of the target on 17-Mar-2023 at 08:30 UT is:
S19E83 (-905", -298")
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, Ying Li (Purple Mountain Observatory)