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)
Dear Collaborators,
Solar activity has increased to a moderate level since the last message.
The largest event in the period was an M1.9 flare at 23:18 UT yesterday
attributed to the target region NOAA 13538, although a flare from NOAA
13541 (S23W00, beta-gamma/E-type) also contributed to the soft X-ray
flux. 13538 produced another two ~M1 flares just now and is now beyond
the northwest limb with high-lying loops. It shall remain as the target region
for an additional 24 hours. Please note that a southeast limb region
(unnumbered yet, S20E88) also produced an ~M1 flare in the period.
More C-class flares are expected, with a good chance of additional low
M-class flares in the next 24 hours.
The position of NOAA 13538 on 11-Jan-2024 at 12:30 UT is:
N20W88, (915",334")
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 is at an intermediate level. The target region NOAA 13538
continued to be the most flare-productive region as it approaches the
northwest limb, being the source of several low and mid-to-high C-class
flares, as well as the largest magnitude event in the period - a C9.6 at
03:18 UT today. NOAA 13538 shall remain the target region due to its
recent high flaring productivity. Please note that NOAA 13536 (N06W47,
beta-gamma/E-type) and a southeast limb region (unnumbered yet,
S20E88) also produced a few mid-to-high C-class flares in the period.
More C-class flares are expected, with chance for low M-class flares
over the next 24–48 hours.
The position of NOAA 13538 on 10-Jan-2024 at 08:30 UT is:
N20W72, (872",352")
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 slightly diminished since the last message. Yesterday's
target region NOAA 13539 was flare quiet, which has been downgraded
from a beta-gamma to a beta configuration. NOAA 13538 in the northwest
quadrant was the most flare-productive region on the visible disk with ten
C-class flares, including the largest magnitude flare in the period - a C5.7
at 15:42 UT yesterday. The target region will switch to NOAA 13538 due
to its past flaring history. Additional C-class flares are expected in the
next 24 hours, with a slight chance for an isolated low M-class flare.
The position of NOAA 13538 on 9-Jan-2024 at 08:30 UT is:
N25W59, (759",442")
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 remains at intermediate levels since the last message.
The largest event in the period was a C8.8 flare at 22:11 UT yesterday
from a southwestern region, NOAA 13534 (S12W91). The majority of
flare activity in the period was from NOAA 13538 (N25W47, beta/C-type),
and yesterday's target, NOAA 13536 (N05W25, beta-gamma/E-type).
NOAA 13539 retains its beta-gamma magnetic configuration and
produced a C7.4 flare just now. This region is still emerging new
magnetic fluxes and shall be the new target region. Further C-level
activity likely with chance for an isolated low M-class flare in the next
24 hours.
The position of NOAA 13539 on 8-Jan-2024 at 08:30 UT is:
N11W06, (100",249")
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 been at an intermediate level since the last message.
The largest event in the period was a C7.1 flare at 15:27 UT yesterday
from NOAA 13538 (N21W35), which also produced another over ten
C-class flares in the period but now appears to be decaying, reducing
in both area and sunspot number. The target region 13536 continues
to retain its beta-gamma magnetic configuration and has grown in both
area and number of sunspots in the period, being the source of several
low-to-mid C-class flares. NOAA 13536 shall remain as the target region
due to the magnetic complexity of it and the nearby region NOAA 13539
(N11E07, beta-gamma/D-type). More C-class flares are expected over
the next 24 hours, with a slight chance for an isolated low M-class flare.
The position of NOAA 13536 on 7-Jan-2024 at 12:30 UT is:
N05W12, (202",146")
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)