Dear RHESSI Collaborators,
The level of solar activity continues to be very low. Although it
remains unnumbered by NOAA, yesterday’s target region close to the
South East limb exhibits small spots with no penumbra in a bipolar
magnetic configuration (making it a small beta/B-type sunspot group
classification). This continued to be the only region producing
flares since the last message, being the source of a B9.7 event on
23-Feb-2016 at 01:01 UT. Further B-class activity is probable over
the following 24 hours, with a chance of resuming C-class flaring.
The approximate position of this region on 23-Feb-2016 at 12:00 UT is:
S07E73, ( -921", -83" )
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 (Trinity College Dublin)
Dear RHESSI Collaborators,
Solar activity is at a very low level. The region that rotated over
the South East limb in the last couple of days shows signs of small
spot coverage, but has not yet been numbered by NOAA. This region
has produced three B-class flares in the past 24 hours, including
the largest flare of the period (a B8.7 on 22-Feb-2016 at 20:43 UT).
Further B-class activity is probable over the next 24 hours, with a
chance of this region resuming C-class flaring if the leading spot
that is visible grows in area or additional trailing spots rotate
into view.
The approximate position of this region on 22-Feb-2016 at 23:00 UT is:
S07E81, ( -951", -98" )
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 (Trinity College Dublin)
Dear RHESSI Collaborators,
Solar activity is at the B-level. The region on the southeast limb has
been quiescent since the last message. It is now on the disk and
appears to be spotless. A newly emerged beta region in the northwest
quadrant, designated as NOAA 12505, has produced some low-level events
and shall be the new target region. The region appears to show signs
of polarity mixing in its core and may produce some C-class flares
over the next 24 hours.
The position of NOAA 12505 on 21-Feb-2016 at 15:31 UT is:
N08W41, ( 632", 223" )
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 (NASA/GSFC)
Dear RHESSI Collaborators,
Solar activity continues at low levels. The region on the southeast
limb produced a few low-level events since the last message, including
a C2.7 flare at 22:49 UT yesterday. The region remains unnumbered, and
its magnetic configuration is unclear at this time, but it shall
continue to be the target region with additional B- and C-class flares
likely over the next 24 hours.
The position of the target region on 20-Feb-2016 at 15:35 UT is:
S23E78, ( -874", -354" )
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 (NASA/GSFC)
Dear RHESSI Collaborators,
Solar activity has returned to quiescent levels with NOAA 12497 now
over the western limb. Both it and a new region rotating onto the
southeast limb have produced occulted B- and low C-class flares since
the last message. Although the magnetic configuration of the region on
the southeast limb is unknown at this time, it shall be the new target
region. C-level activity possible over the next 24 hours.
The approximate position of the target region on 19-Feb-2016 at 21:31 UT is:
S28E84, ( -852", -442" )
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 (NASA/GSFC)
Dear RHESSI Collaborators,
Solar activity has begun to diminish with NOAA 12497 now over the
western limb. However, the region produced two C7 flares since the
last message. The looptops of NOAA 12497 are still visible, and it
shall remain the target region for a further 24 hours in case of an
additional over-the-limb event.
The position of NOAA 12497 on 18-Feb-2016 at 19:30 UT is:
N13W91, ( 945", 214" )
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 (NASA/GSFC)
Dear RHESSI Collaborators,
Solar activity remains at the C-level with NOAA 12497 now on the
western limb. The largest event since the last message was a C9.4 at
04:54 UT today. The magnetic configuration of the region is now
uncertain but it is reasonable to assume that C-level activity will
continue until the region transits the western limb. Chance also
remains for an isolated low M-class flare.
The position of NOAA 12497 on 17-Feb-2016 at 18:35 UT is:
N13W87, ( 944", 222" )
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 (NASA/GSFC)
Dear RHESSI Collaborators,
NOAA 12497 is now nearing the western limb and has continued to
produce low-to-mid C-class flares since the last message. The region
appears to be starting to decay but has retained its delta
configuration. NOAA 12497 shall remain the target region for a further
24 hours with more C-level activity expected. Slight chance of another
low M-class flare before west limb passage.
The position of NOAA 12497 on 16-Feb-2016 at 18:35 UT is:
N12W73, ( 909", 233" )
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 (NASA/GSFC)
Dear RHESSI Collaborators,
NOAA 12497 has produced numerous C-class flares over the past 24 hours
along with an M1.1 flare at 10:41 UT today. The region continues to
exhibit complex and dynamic behavior as it approaches the western
limb, and remains classified as a beta-gamma-delta/E-type region.
Sustained C-level activity is likely, with chance for an additional
isolated low M-class flare.
The position of NOAA 12497 on 15-Feb-2016 at 21:35 UT is:
N12W61, ( 832", 255" )
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 (NASA/GSFC)
Dear RHESSI Collaborators,
Solar activity has remained at the C-level since the last message,
with the largest event being a C6.9 flare at 09:52 UT today. The
target region NOAA 12497 retains its beta-gamma-delta configuration,
with further flux emergence and shearing within the dominant leader
spot. Sustained C-level activity expected over the next 24 hours with
chance for a low M-class flare.
The position of NOAA 12497 on 14-Feb-2016 at 18:31 UT is:
N12W46, ( 685", 279" )
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 (NASA/GSFC)