Dear RHESSI Collaborators,
Solar activity continues at a very low level. The largest event
of the period was a B3.7 at 03:02 UT on April 23 produced by
the target region NOAA 12651. 12651 retains its beta/C-type
sunspot group and continues showing flux emergence in its
intermediate portion. Only B-class activities are possible over
the next 24 hours.
The position of NOAA 12651 on April 23 at 13:30 UT is:
N12E09 (-146", 277")
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 (Nanjing University / Montana State University)
Dear RHESSI Collaborators,
Solar activity remains at very low levels. The largest event since
the last message was a B9.6 at 00:22 UT on April 22 produced
by the target region NOAA 12651. 12651 has been downgraded
to a C-type/beta region. It is still showing flux emergence in its
intermediate portion. Some brightenings and surges are also
visible in H-alpha images. Further B-class activities are expected
with a slight chance of an isolated C-class flare.
The position of NOAA 12651 on April 22 at 13:30 UT is:
N12E22 (-350", 273")
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 (Nanjing University / Montana State University)
Dear RHESSI Collaborators,
Solar activity continues at low levels. The target region
NOAA 12651 has produced a few B-class events (the
largest being a B6.2) since the last message. 12651
retains its beta/D-type sunspot group, increasing in
sunspot area and number of spots slightly. The coronal
loops above this region appear to interact with a small
filament at the edge of the region. Additional B-class
activities are expected with a chance of an isolated
C-class event in the following 24 hours.
The position of NOAA 12651 on April 21 at 13:30 UT is:
N12E36 (-550", 265")
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 (Nanjing University / Montana State University)
Dear RHESSI Collaborators,
Solar activity is at a low level. The target region NOAA 12651
produced a few B-class events (the largest being a B8.0) in the
past 24 hours. 12651 has been downgraded to a beta/D-type
region with still showing flux emergence in the leading spots.
Further B-class activities are expected with a chance of an isolated
C-class event in the next 24 hours.
The position of NOAA 12651 on April 20 at 13:30 UT is:
N13E49 (-703",269")
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 (Nanjing University / Montana State University)
Dear RHESSI Collaborators,
The target region has been designated as NOAA 12651.
It produced a C5.5 flare at 19:21 UT on April 18, which
was associated with a 'standard' CME. 12651 has a D-type/
beta-gamma magnetic configuration. It is showing flux
emergence in its leading portion. Additional mid-to-high
level C-class events are likely in the following 24 hours.
The position of NOAA 12651 on April 19 at 13:30 UT is:
N12E59 (-802",242")
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 (Nanjing University / Montana State University)
Dear RHESSI Collaborators,
The target region (still unnumbered yet) produced a few
B-class events as well as a C3.3 flare that was associated
with a small non-Earth-directed CME. This region has not
completely rotated onto the visible disk yet. It appears to
show some dynamic surges in the H-alpha images. Further
C-class activities are likely in the next 24 hours.
The approximate position of the target on April 18 at 07:30 UT is:
N09E84 (-945", 160")
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 (Nanjing University / Montana State University)
Dear RHESSI Collaborators,
Solar activity has increased since the last message. The target
region (unnumbered yet) produced numerous B-class flares as
well as a C2.0 flare in the past 24 hours. This region is still too
close to the east limb to obtain its magnetic configuration. It has
the potential to produce additional C-class events in the next 24
hours.
The proximate position of the target on April 17 at 13:30 UT is:
N09E88 (-950", 160")
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 (Nanjing University / Montana State University)
Dear RHESSI Collaborators,
NOAA 12650 has remained quiescent over the past 48 hours and continues
to decay. Solar X-ray flux is currently increasing due to a new active
region rotating onto the eastern limb. It may be the return of NOAA
12644 that produced several M-class flares 2 weeks ago. This shall be
the new target region with increased activity possible over the next
24 hours.
The approximate position of the target region on 16-Apr-2017 at 13:30 UT is:
N24E84, ( -865", 403" )
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 RHESSI Collaborators,
Solar activity continues at very low levels. NOAA 12650 has continued
to decay and is now classified as an alpha region. It shall continue
to be the target region although no significant increase in activity
is expected.
The position of NOAA 12650 on 15-Apr-2017 at 07:30 UT is:
N08W06, ( 99", 225" )
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 RHESSI Collaborators,
Solar X-ray flux remains constant at the sub B-level. NOAA 12650 has
remained quiescent with no events of note since the last message. NOAA
12650 shall continue to be the target region with only a slight chance
of an isolated low level event over the next 24 hours.
The position of NOAA 12650 on 14-Apr-2017 at 07:30 UT is:
N08E10, ( -165", 225" )
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)