Dear Collaborators,
Solar activity was at a low level. The largest event during the
period was a C5.8 flare at 17:16 UT on May 25 produced by
yesterday's target NOAA 13679. This region has rotated beyond
the west limb. Today the target will switch back to NOAA 13685
(S13W48) that has a beta-gamma/E-type configuration. If possible,
please also include the nearby region 13686 (S08W40, beta/C-type)
in the field of view. These two regions produced two low C-class
flares in the past 24 hours. C-class activities are expected in
the next 24 hours.
The position of NOAA 13685 on May 25 at 19:30 UT is:
S13W48 (687", -198")
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 was at a moderate level. The target region
NOAA 13679 produced two ~M1 flares (an M1.1 at 07:51 UT
and an M1.4 at 20:05 on May 24) and seven C-class flares
(including two C9). This region almost rotates over the west
limb with some overlying loops visible above the limb. We
will watch this region for a final 24 hours. Please note that
NOAA 13685 (S13W34, beta-gamma/E-type) also produced
two ~M1 flares (M1.5 and M1.3). Additional low M-class
flares are probable from these two regions.
The position of NOAA 13679 on May 24 at 19:30 UT is:
S09W85 (932", -145")
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 moderate-to-low level. The largest
event in the past 24 hours was an M2.5 at 12:48 UT yesterday
produced by the target region NOAA 13679. 13679 also produced
two M1.0 flares plus more than ten C-class flares. This region
retains a beta-gamma-delta/E-type configuration. C-class activities
are expected with some chance of low M-class flares in the
next 24 hours.
The position of NOAA 13679 on May 24 at 03:30 UT is:
S09W75 (904", -141")
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 moderate level. The target
region NOAA 13679 produced three M-class flares with
the largest one being an M4.2 at 02:05 UT today. This
region also produced six C-class flares including a C8.5.
It has been designated as a beta-gamma-delta/E-type
configuration. Additional low M-class flares are possible
as this region further rotates to the west limb.
The position of NOAA 13679 on May 23 at 03:30 UT is:
S09W61 (820", -134")
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-to-moderate level for the past
24 hours. The largest event was an M2.3 flare at 03:38 UT,
happening just now, produced by the limb region NOAA 13683
(S23W89, beta/D-type). This region also produced seven C-class
flares yesterday when it was rotating over the west limb. Another
region NOAA 13679 produced two low M-class flares (an M1.9
at 05/21/19:19 UT and an M1.5 at 05/22/03:02 UT) plus two
C-class flares. Today the target will switch to 13679 as yesterday's
target NOAA 13685 has been flare quiet since the last message.
13679 has a beta-gamma/E-type sunspot group and continues
showing magnetic flux emergence. Further M-class flares are
probable before this region rotates beyond the west limb.
The position of NOAA 13679 on May 22 at 03:30 UT is:
S09W48 (697", -128")
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 past 24 hours was a C6.7 at 05:42 UT
yesterday produced by NOAA 13683 (S24W74, beta/D-type),
which was associated with a filament eruption. The target region
NOAA 13685 retains a beta-gamma/E-type configuration but
decreases in the sunspot area. 13685 only produced a C2.2
flare during the period. While the nearby region NOAA 13686
(S06E23, beta/C-type) produced three low C-class flares. At this
moment we end the Major Flare Watch campaign, remaining
13685 as the target, but please also include 13686 in your field
of view if possible. C-class activities are expected with some
chance of an M-class flare in the next 24 hours.
The position of NOAA 13685 on May 21 at 03:30 UT is:
S12E13 (-209", -167")
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 was at a moderate level. There were three ~M2 flares
produced by the target region NOAA 13685, with the largest one
being an M2.5 at 17:47 UT on May 19. 13685 retains a beta-gamma/
E-type configuration but increases in the sunspot area and number
of spots. We will continue the Major Flare Watch campaign today
with 13685 as the target. Additional M-class flares including a >M5
one are possible in the next two days.
The position of NOAA 13685 on May 20 at 03:30 UT is:
S13E27 (-420", -184")
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 C7.2 at 05:32 UT on
May 18 from NOAA 13679 (S08W07, beta-gamma/E-type).
The target region NOAA 13685 only produced two C4 flares.
It has been designated as a beta-gamma/E-type configuration
with an increase in the sunspot area. This region is emerging
magnetic flux in its leading portion. We will continue the Major
Flare Watch campaign today. C-class activities are expected
with a chance of a major (>M5) flare in the next 24-48 hours.
The approximate position of NOAA 13685 on May 19 at 01:00 UT is:
S13E42 (-600", -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,
Ying Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has been at low-to-moderate levels. The largest event
since the last message was an isolated M7.3 flare at 20:33 UT on
May 17 produced by the target region NOAA 13685. 13685 has split
into two regions with the other one numbered as NOAA 13686. 13685
retains a beta-gamma/D-type configuration but increases in the sunspot
area. The Major Flare Watch will continue today with 13685 as the
target, but if possible, please also include 13686 (S07E64, alpha/H-type)
in your field of view. Additional M-class flares including a >M5 flare
are likely in the next 24-48 hours.
The position of NOAA 13685 on May 18 at 03:30 UT is:
S13E48 (-688", -189")
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 moderate-to-low levels. The largest event
in the previous 24 hours was an M1.0 flare at 07:50 UT on May 16
from the limb target region. This limb region also produced three
~C5 flares in the period. It has been designated as NOAA 13685 with
a beta-gamma/D-type configuration. The Major Flare Watch campaign
will continue today with 13685 remaining as the target. Please note
that NOAA 13679 (S09E18, beta-gamma/E-type) also produced four
~C4 flares. Further C-class activities are expected with a good chance
of M-class flares in the next few days.
The position of NOAA 13685 on May 16 at 23:30 UT is:
S13E64 (-820", -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,
Ying Li (Purple Mountain Observatory)