Dear Collaborators,
Solar activity has returned to low levels. NOAA 12738 has been mostly
quiescent since the last message, producing only a few B1 flares. The
region has reverted to an alpha configuration after its trailing
portion has decayed significantly, but it shall remain the target.
Slight chance of an isolated low B-class flare over the next 24 hours.
The position of NOAA 12738 on 15-Apr-2019 at 13:30 UT is:
N06W27, ( 433", 182" )
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,
Ryan Milligan (University of Glasgow)
Dear Collaborators,
The target region NOAA 12738 produced A-class events only
in the past 24 hours. 12738 retains its beta/C-type classification.
It shows some EUV jets and H-alpha surges in its leading portion.
Only very low activities are likely in the following 24 hour period.
The position of NOAA 12738 on April 14 at 13:30 UT is:
N06W14 (231", 191")
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 12738 produced a few B-class flares,
including a B7.1 at 11:29 UT yesterday. 12738 has been re-classified
as a beta/C-type configuration. Further B-class events are expected
in the following 24 hour period.
The position of NOAA 12738 on April 13 at 13:00 UT is:
N06W01 (16", 195")
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 B4.5 at 10:02 UT
on April 11, produced by the target region NOAA 12738. 12738 also
produced a ~B3 event (just now). 12738 has been downgraded to
an alpha/H-type region, entering its decay phase. Additional low
B-class activities are still possible in the next 24 hours.
The position of NOAA 12738 on April 12 at 07:30 UT is:
N06E16 (-263", 193")
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 12738, the only region with sunspots
on the visible disk, was the source of several low-level B-class
flares (the largest one being a B2.1) in the past 24 hours. 12738
retains its beta/C-type classification and continues showing mixed
polarities. Further B-class activities are expected in the following
24 hour period.
The position of NOAA 12738 on April 11 at 07:30 UT is:
N06E29 (-463", 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,
Ying Li (Purple Mountain Observatory)
Dear Collaborators,
The target region NOAA 12738 has been designated as a
beta/C-type sunspot group. 12738 produced a few low B-class
flares, the largest one being a B2.5 at 00:07 UT on April 10.
This region continues showing mixed polarities. More B-class
flares are expected with a slight chance of a low C-class event
in the next 24 hours.
The position of NOAA 12738 on April 10 at 07:30 UT is:
N06E42 (-639", 174")
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 12738 produced a few B-class events
in the past 24 hours, the largest one being a B5.7 at 13:55 UT
on April 8. 12738 retains its alpha/H-type classification. It shows
some negative flux emergence in its trailing spot with a positive
polarity. Additional B-class flares are expected with a chance of
an isolated C-class event in the following 24 hours.
The position of NOAA 12738 on April 9 at 07:30 UT is:
N06E56 (-791", 156")
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 12738 with an
alpha/H-type sunspot group. 12738 was the source of a few low
B-class events (the largest one being a B2.7 at 06:15 UT today)
since the last message. Further B-class flares are expected in the
next 24 hours.
The position of NOAA 12738 on April 8 at 07:30 UT is:
N06E68 (-884", 137")
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 begun to increase with the active region near the
eastern limb now on the visible solar disk. It has produced a number
of B-level events since the last message, including a B7.6 flare at
10:47 UT today. Its magnetic configuration is still uncertain at this
time but it shall continue to be the target region. Further B-level
activity expected with chance of an isolated C-class flare over the
next 24 hours.
The approximate position of the target region on 7-Apr-2019 at 07:30 UT is:
N06E88, ( -953", 100" )
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,
Ryan Milligan (University of Glasgow)
Dear Collaborators,
NOAA 12737 was the source of some A-level activity since the last
message but remains spotless. The global X-ray flux is currently
increasing due to the appearance of a large active region on the
eastern limb, as seen in STEREO-Ahead images. The region is unnumbered
and its magnetic configuration is uncertain at this time, but it shall
be the new target region and could produce some low-to-intermediate
level activity as it rotates into view.
The approximate position of the target region on 6-Apr-2019 at 07:30 UT is:
N08E87, ( -949", 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,
Ryan Milligan (University of Glasgow)