Dear Collaborators,
The target region NOAA 12871 was the source of an M1.8 flare (at
09/23/15:23 UT) and also two C-class (C1.0 and C2.9) and a few
B-class flares in the past 24 hours. 12871 has been designated as
a beta-gamma-delta/D-type region. More B- and C-class activities
are expected with a chance of low M-class flares in the next 24 hours.
The position of NOAA 12871 on September 24 at 07:30 UT is:
S28E07 (-103", -549")
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 12871 is producing an ~M3 flare! It also
produced the only C1.1 flare and numerous B-class flares in the
past 24 hours. 12871 retains its beta-delta/D-type configuration
while decreasing in the sunspot area. There appear another four
regions (NOAA 12872-12875) with sunspots on the visible solar disk,
which also produced a few B-class flares. Further B- and C-class
events are expected with some chance of additional M-class flare
in the next few days.
The position of NOAA 12871 on September 23 at 03:30 UT is:
S28E23 (-330", -542")
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 largest event since the last message was a C1.8 flare
at 09/21/11:43 UT produced by NOAA 12873 which had a beta/
D-type magnetic configuration. 12873 also produced another
C1.1 flare and four B-class flares. The target region NOAA 12871
was the source of more than ten B-class flares as well as a C1.1
at 09/21/18:18 UT. 12871 has been designated as a Beta-Delta/
D-type region. Further B- and C-class events are expected with
a chance of a low M-class flare in the next few days.
The position of NOAA 12871 on September 22 at 03:30 UT is:
S27E34 (-477", -518")
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 12871 was the source of numerous
B-class flares (the largest one being a B6.3 at 09/20/10:38 UT)
in the past 24 hours. 12871 retains its beta/D-type configuration
but increases in the sunspot area and number of spots. There
also emerged two regions with sunspots, numbered as NOAA
12872 (N17E40, beta/C-type) and 12873 (N26W09, beta/B-type),
which were relatively flare quiet. More B-class events are expected
with a chance of C-class flares from the target region in the next
24-hour period.
The position of NOAA 12871 on September 21 at 03:30 UT is:
S29E48 (-622", -529")
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 numbered as NOAA 12871 with a
beta/D-type configuration. In the past 24 hours, 12871 produced
numerous low B-class flares as well as a B8.1 at 09/20/09:24 UT.
It shows flux emergence in its north portion. B-class activities are
expected with a chance of C-class flares in the next 24 hours.
The position of NOAA 12871 on September 20 at 07:30 UT is:
S28E57 (-708", -502")
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 limb target region was the source of four B-class flares
as well as two C-class flares (a C2.6 at 09/18/08:18 UT and
a C1.6 at 09/19/01:04 UT) in the past 24 hours. This region
has some sunspots now and is supposed to be numbered as
a new region tomorrow. It is still too close to the limb to ascertain
its magnetic configuration. Further B- and C-class activities are
expected in the next 24 hours.
The approximate position of the target region on September 19 at 07:30 UT is:
S32E77 (-800", -530")
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 limb target region was the source of three low B-class flares (the
largest one being a B2.0 at 09/18/00:37 UT) in the past 24 hours. This
region is rotating onto the visible solar disk. Currently the visible solar
disk is still void of sunspots. B-class flares are expected and C-class
activities are probable from the limb target region in the next 24 hours.
The approximate position of the limb target on September 18 at 05:00 UT is:
S30E85 (-880", -410")
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,
NOAA 12866/12868 has rotated beyond the west limb. Today the target
will switch to a new region near the east limb. This region has produced
a B2.3 flare as well as a C3.5 just in the past two hours. Further B- and
C-class activities are expected with a chance of an M-class flare if this
region had a complex magnetic configuration.
The approximate position of the limb target on September 17 at 05:00 UT is:
S30E85 (-880", -400")
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,
NOAA 12868 produced a few low B-class flares in the past 24 hours.
12868 has rotated over the west limb, but the nearby region NOAA 12866
can still be seen, which has an alpha/H-type configuration. We will watch
this limb region for one more day. If possible, please also include the plage
region NOAA 12869 (S19W77) that was the source of two low B-class flares.
B-class activities are expected in the next 24 hours.
The position of NOAA 12866 on September 15 at 07:30 UT is:
S18W75 (876", -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,
The target region NOAA 12868 was the source of four B-class flares
as well as a C1.1 flare (at 09/14/06:40 UT) since the last message.
12868 has decayed to a beta/C-type configuration and is rotating over
the west limb. Another region NOAA 12869 was also produced two
low B-class flares but now decayed to a plage region. If possible,
please also include the region NOAA 12866 (S19W64, beta/D-type)
in your field of view. B-class activities are expected with a chance of
an isolated C-class flare in the next 24 hours.
The position of NOAA 12868 on September 14 at 07:30 UT is:
S20W81 (885", -341")
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)