Dear Collaborators,
Solar activity has increased since the last message.
The largest event was a C6.3 flare at 01:57 UT today
produced by the target region NOAA 13559. 13559
also produced two C5 flares and seven low C-class
flares. It has been designated as a beta/E-type sunspot
group with increasing the sunspot area and number
of spots. More C-class activities are expected with a
change of M-class flares in the next few days.
The position of NOAA 13559 on January 21 at 08:30 UT is:
N27E30 (-435", 509")
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 a low level. The largest event
since the last message was a C3.5 flare at 08:35 UT today,
associated with a filament eruption near the regions of
NOAA 13555 and 13557. Yesterday's target NOAA 13553
has been flare quiet. Today the target will switch to
NOAA 13559 as mentioned in the previous message.
13559 retains a beta/D-type configuration but increases
in the sunspot area and number of spots. It produced a
C1.7 and three high B-class flares (B8.5, B9.6, and B9.6).
There are also a few ~C1 flares produced by some other
regions. Additional C-class activities are expected in the
next 24 hours.
The position of NOAA 13559 on January 20 at 12:30 UT is:
N26E39 (-552", 486")
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 has been at a very low level since the last
message. The largest event during the period was a C2.3
flare at 12:23 UT yesterday produced by the target region
NOAA 13553. 13553 also produced another two flares
(C2.2 and C1.3). It retains a beta/C-type configuration.
Today we will continue to watch this region for a further
24 hours. Please note that a newly numbered region
NOAA 13559 was designated as a beta/D-type configuration
and is showing magnetic flux emergence, which has a
potential to produce high C-class flares in the next few days.
Further C-class activities are expected from the target region
and also from 13559.
The position of NOAA 13553 on January 19 at 08:30 UT is:
N05W02 (34", 168")
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 has increased slightly since the last message.
The largest event in the period was a C5.4 flare at 03:59 UT
today produced by NOAA 13553. 13553 also produced another
three ~C2 flares and had a beta/C-type configuration. Today
the target will switch to 13553 although it appears to decay.
Yesterday's limb target produced three ~C2 flares yesterday
and has been quiet today. There were also a few low C-class
flares emerged from some other regions. Additional C-class
activities are expected in the next 24 hours.
The position of NOAA 13553 on January 18 at 08:30 UT is:
N09E12 (-201", 231")
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 has continued at low levels since the last message.
Yesterday's target NOAA 13541 only produced two C1 flares. This
region retains a beta/C-type configuration but decreases in the
sunspot area and number of spots significantly. Today the target
will switch to a northeast limb region, which has produced three
C-class flares including the largest one in the period, a C2.6 flare
at 07:17 UT today. This limb region is rotating onto the visible disk.
Further C-class activities are expected in the next 24 hours.
The approximate position of the target on January 17 at 08:30 UT is:
N27E87 (-840", 450")
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 a low level. A few low C-class
flares were produced by various regions, the largest one
being a C2.9 at 01/15/13:54 UT from NOAA 13553 with an
alpha/H-type configuration. The target region NOAA 13541
produced three flares (C1.7, C2.0, and C2.5) during the
period. 13541 retains a beta/C-type sunspot group but
increases in the area and number of spots. We will continue
to watch this region as it rotates to the west limb. Only C-class
activities are expected in the next 24 hours.
The position of NOAA 13541 on January 16 at 16:30 UT
S20W71 (867", -308")
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 has been at a low level since the last message.
The largest event in the period was a C5.8 flare at 16:54 UT
on Jan. 14 from the target region NOAA 13541. This region
produced another three low C-class flares as well. It has been
downgraded to a beta/C-type configuration today. We will continue
to watch this region for a further 24 hours. Please also include
NOAA 13540 (S19W56) in your field of view if possible. 13540
was designated as a beta-gamma/D-type configuration and
produced two low C-class flares. Additional C-class activities
are expected in the next 24 hours.
The position of NOAA 13541 on January 15 at 08:30 UT
S22W53 (723", -322")
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 is at an intermediate level. Yesterday's target region
NOAA 13539 has now rotated over the northwest limb. This region
produced just one low C-class flare in the period, while its neighboring
regions behind the west limb, NOAA 13536 and 13543, were the
sources of a C4.2 flare and a C9.6 flare, respectively. Please note
that NOAA 13541 (S22W40) is now classified as a beta-delta region,
being the source of five low C-class flares in the period. This region
shall be the new target region. Further C-level events are expected,
with a chance for M-class flares.
The position of NOAA 13541 on 14-Jan-2024 at 12:30 UT is:
S22W40, (583",-311")
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 has diminished since the last message. The largest event
during the period was a C4.8 flare at 17:01 UT yesterday, attributed to
NOAA 13538. This region is now full behind the northwest limb. The
target region NOAA 13539 produced three ~C3 flares in the period,
which shall remain as the target region for an additional 24 hours.
Further C-level activity likely with a slight chance for an isolated low
M-class flare.
The position of NOAA 13539 on 13-Jan-2024 at 12:30 UT is:
N10W76, (932",186")
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 continues at moderate levels. Yesterday's target region
NOAA 13538 has produced an M1.2 and a few C-class flares since
the last message, but this region was quiescent today. The largest
event in the period was an M1.5 flare at 17:49 UT yesterday produced
by NOAA 13539 (N10W63, beta/D-type), which was also the source of
another six C-class flares. 13539 has remained active and shall be the
new target region. Please note that NOAA 13547 (N19E12, beta/D-type)
also produced an M1.1 flare in the period. Further C-class flares are
expected, with a good chance of additional low M-class flares in the
next 24 hours.
The position of NOAA 13539 on 12-Jan-2024 at 12:30 UT is:
N10W63, (857",201")
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)