Dear Collaborators,
The level of solar activity remains very low. Newly numbered NOAA
region 12794 has rotated over the South East limb onto the visible
disk. This region is classified as an alpha/H-type sunspot group,
and has a produced two high-A-class flares over the past 24 hours
(the largest being an A9.8 flare on 21-Dec-2020 at 00:57 UT). Low
B-class activity is possible in the following 24-hour period.
The position of NOAA 12794 on 21-Dec-2020 at 13:00 UT is:
S17E71 , ( -882", -276" )
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,
Shaun Bloomfield (Northumbria University)
Dear Collaborators,
Solar activity continues at a very low level and the visible solar disk
is spotless. Only a B1.1 flare was produced by the target plage region
NOAA 12793. 12793 decays further. No significant activities are
expected in the next 24 hours.
The position of NOAA 12793 on December 20 at 08:30 UT is:
S15W11 (180", -227")
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. Only a B2.0 X-ray event was
produced by the target region NOAA 12793 in the past 24 hours.
NOAA 12793 has decayed to a plage region with losing its sunspots.
No significant activities are expected in the following 24 hours.
The position of NOAA 12793 on December 19 at 08:30 UT is:
S15E03 (-49", -228")
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 an extremely low level, without any flares
occurring since the last message. The target region NOAA 12793
was designated as a beta/B-type configuration. 12793 has entered
its decay phase. No significant activities are expected in the following
24 hours.
The position of NOAA 12793 on December 18 at 04:30 UT is:
S15E19 (-307", -232")
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,
with only a B1.8 flare produced by NOAA 12793. Yesterday's target
NOAA 12792 has decayed to a plage region and has been flare quiet.
Today the target will switch to NOAA 12793 that remains its beta/
B-type configuration. B-class flares are probable in the next 24 hours.
The position of NOAA 12793 on December 17 at 04:30 UT is:
S15E32 (-500", -236")
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,
The target region NOAA 12792 and NOAA 12793 (S15E46,
beta/C-type) produced three and five B-class flares in the
past 24 hours, respectively. The largest event was a C5.3 at
12/15/06:14 UT from the latter region. 12792 continues showing
flux emergence in its intermediate portion. If possible, please
also include NOAA 12793 in your field of view. B-class activities
are expected with a slight chance of an isolated C-class flare
in the next 24 hours.
The position of NOAA 12792 on December 16 at 04:30 UT is:
S22E23 (-354", -350")
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,
Numerous B-class flares were produced by the target region
NOAA 12792 and also NOAA 12793 (S16E57, alpha/A-type)
in the past 24 hours. 12792 also produced the largest event,
a C4.0, at 12/14/14:09 UT. 12792 remains its beta/B-type
configuration and continues to show opposite flux in its leading
portion. If possible, please also include NOAA 12793 in your
field of view. Additional B-class activities are expected, with a
chance of another C-class flare in the next 24 hours.
The position of NOAA 12792 on December 15 at 04:30 UT is:
S22E36 (-532", -353")
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,
The target region NOAA 12792 was the source of a few
A-class and low B-class flares in the past 24 hours. 12792
remains its beta/B-type classification. It continues showing
flux emergence particularly in its northern portion. More
B-class activities are expected in the following 24 hours.
The position of NOAA 12792 on December 14 at 04:30 UT is:
S22E49 (-683", -357")
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,
The target region has been designated as NOAA 12792, with
a beta/B-type configuration. 12792 has produced at least five
low B-class flares since the last message, the largest one being
a B2.3 at 12/12/20:29 UT. 12792 shows obvious flux emergence
around its center. B-class activities are expected with a slight
chance of a C-class event in the next 24 hours.
The position of NOAA 12792 on December 13 at 04:30 UT is:
S23E64 (-807", -376")
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,
Numerous B-class X-ray events were produced by yesterday's target
NOAA 12790 (S23W71), NOAA 12791 (S15W44), as well as the east
limb region mentioned in the last message. The largest flare was a B6.7
at 12/12/01:01 UT from the east limb region, which will be today's target.
12790 (alpha/H-type) and 12791 (plage region) are rotating to the west
limb. B-class activities are expected with a chance of C-class events in
the next 24 hours.
The approximate position of the target on December 12 at 04:30 UT is:
S23E85 (-900", -430")
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)