Dear RHESSI Collaborators,
Solar activity continues to be very low. The target region
NOAA 12546 was the source of several minor B-class
events since the last message. 12546 has a beta/C-type
sunspot group. It shows some surges in H-alpha images.
Only B-class activities are expected in the next 24 hours.
The position of NOAA 12546 on May 23 at 14:17 UT is:
S07W44 (655", -96")
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,
Quiet-Sun conditions continue. The target region NOAA 12546 was the
source of a B5.9 flare at 09:12 UT today but has been otherwise
quiescent. The region continues to display low level flux emergence to
the northeast of the positive leader spot which may result in
additional isolated B-class flares over the next 24 hours.
The position of NOAA 12546 on 22-May-2016 at 20:17 UT is:
S07W33, ( 513", -91" )
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,
The target region NOAA 12546 has undergone some low level flux
emergence at the northern edge of its leader spot. The positive
polarity flux emerged into the surrounding negative polarity plage,
resulting in some resurgent B-level activity as well as a C1.0 flare
at 13:55 UT today. Chance for additional low level activity over the
next 24 hours if the region continues to develop.
The position of NOAA 12546 on 21-May-2016 at 14:17 UT is:
S07W16, ( 260", -86" )
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,
Quiet-Sun conditions continue. NOAA 12544 has remained quiescent since
the last message and has begun to transit the western limb. NOAA
12546, the large positive polarity spot close to disk center, has
produced several B-class flares and shall be the new target region.
Given the unipolar nature of the sunspot, no increase in activity is
expected at this time.
The position of NOAA 12546 on 20-May-2016 at 17:17 UT is:
S07W03, ( 49", -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,
Ryan Milligan (NASA/GSFC)
Dear RHESSI Collaborators,
Solar X-ray flux has remained constant around the B2 level since the
last message. The target region NOAA 12544 has remained quiescent and
continues to decrease in both size and complexity as it approaches the
western limb. No significant activity expected over the next 24 hours.
The position of NOAA 12544 on 19-May-2016 at 17:17 UT is:
N21W65, ( 803", 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,
Ryan Milligan (NASA/GSFC)
Dear RHESSI Collaborators,
Solar activity continues at very low levels. The trailing portion of
target region NOAA 12544 has completely decayed and the region remains
quiescent. No significant activity is expected over the next 24 hours.
The position of NOAA 12544 on 18-May-2016 at 20:20 UT is:
N22W53, ( 703", 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,
Ryan Milligan (NASA/GSFC)
Dear RHESSI Collaborators,
Solar X-ray flux remains steady at the mid B-level. The only C-class
flare since the last message was a C1.2 flare from NOAA 12542. The
trailing portion of NOAA 12544 continues to decay but the region
retains some overall polarity mixing and shall remain the target
region. Only isolated low-level events expected at this time.
The position of NOAA 12544 on 17-May-2016 at 17:17 UT is:
N20W37, ( 537", 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 low levels with only a C1.9 flare since
the last message. The target region NOAA 12544 has continued to decay
but is now classified as a beta-gamma region. Chance for additional
isolated C-class flares over the next 24 hours.
The position of NOAA 12544 on 16-May-2016 at 22:00 UT is:
N20W27, ( 406", 359" )
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 to increase with numerous C-class events
emanating from various active regions. NOAA 12542 (N10W77) was
the source of a long-duration event (a C3.4 at 15:00 UT on May 15)
due to a filament eruption and accompanied by a beautiful standard
CME. Yesterday's target region NOAA 12543 (S05W82) produced
several C-class flares including the largest one (a C5.4 at 03:58 UT
on May 15). NOAA 12544 was the source of 7 low C-class flares and
also a few B-class events. NOAA 12543 is rotating to the west limb,
and has lost some of its magnetic complexity. Today we will watch
NOAA 12544 that has a beta/D-type sunspot group. Further C-class
activities are expected over the next 24 hour period.
The position of NOAA 12544 on May 15 at 21:17 UT is:
N21W13 (200", 379")
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 with
numerous B- as well as C-class events emanating from
various regions. NOAA 12544 (N21W00) and yesterday's
target region NOAA 12542 (N10W61) were the sources
of a few B-class flares. NOAA 12543 produced all the four
C-class events, including the largest one, a C8.4 at 11:28 UT
on May 14. Today the target region will switch to 12543 that
has a beta/D-type sunspot group. Additional C-class activities
are likely in the next 24 hours.
The position of NOAA 12543 on May 14 at 19:17 UT is:
S05W65 (858", -64")
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)