Dear RHESSI Collaborators,
Solar activity has increased over the past 24 hours. Target region,
NOAA 12305, was the source of three C-class events (the largest being
a C8.7 at 04:36 on March 25). 12305 increased its spot area, and was
once classified as a beta-gamma-delta magnetic type, though the delta
configuration has somewhat decayed now. 12305 continues to show
some mixed polarities in its intermediate portion. C-class activity is
expected with a slight chance for an M-class event in the next 24 hour
period.
The position of NOAA 12305 on March 25 at 12:35 UT is:
S08E25 (Solar X = -404", Solar Y = -29")
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 low levels with numerous B-class events
emanating from the visible disk. The target region NOAA 12305 continues
to show signs of growth over the past 24 hours, increasing in spot area
and number of spots. 12305 maintains its E-type/beta-gamma configuration
and bright H-alpha plage. It is showing some flux emergence in the
intermediate portion. C-class events are still possible in the next 24
hours.
The position of NOAA 12305 on March 24 at 12:35 UT is:
S08E37 (Solar X = -575", Solar Y = -41")
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 solar activity continues at a low level. The largest event since
the last message was a C3.6 at 08:49 UT on March 23 produced by an
undesignated region (S25E86) over the South East limb. Yesterday's
target region NOAA 12305 has increased in spot area and count, and
now is classified as an E-type/beta-gamma magnetic configuration.
C-class activity is possible in the next 24 hours.
The position of NOAA 12305 on March 23 at 12:35 UT is:
S08E51 (Solar X = -742", Solar Y = -60")
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. Yesterday’s target, NOAA region
12303, has remained flare quiet since the last message. NOAA 12305
has shown signs of growth over the previous 24 hours, increasing
in spot area and number of spots. This region was first classified
today as a beta/D-type sunspot group, but now appears to show mixed
polarities in its intermediate portion (making 12305 a beta-gamma
region classification). C-class activity is possible over the next
24 hours.
The position of NOAA 12305 on 22-Mar-2015 at 22:00 UT is:
S08E55, ( -781", -66" )
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,
The level of solar activity is low. The high-lying loops of NOAA
12297 have completely rotated out of view. The target will switch
to NOAA 12303, the largest region on the visible disk. NOAA 12303
is an alpha/H-type sunspot group, but produced the largest event
in the past 24 hours - a C1.7 flare on 21-Mar-2015 at 07:35 UT.
More C-class flares are possible over the following 24 hours.
The position of NOAA 12303 on 21-Mar-2015 at 23:30 UT is:
N19E12, ( -193”, 421” )
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 low level. The spots of NOAA 12297 have now
rotated over the South West limb, but this region was classified as
a beta-gamma/C-type sunspot group before completing limb transit.
NOAA 12297 was the source of the largest event in the past 24 hours
- a C7.9 flare on 20-Mar-2015 at 00:57 UT. More C-class activity is
possible over the next 24 hours before the high-lying loops of NOAA
12297 rotate completely out of view.
The position of NOAA 12297 on 20-Mar-2015 at 22:00 UT is:
S17W90, ( 921”, -280” )
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,
The level of solar activity is now low. NOAA 12302 has been the most
flare-productive region over the past 24 hours, but it has already
rotated over the North West limb. NOAA 12297 has decreased in number
of spots, spot area and complexity over the past 24 hours as it has
rotated up to the South West limb. This region is now classified as
a beta-gamma-delta/E-type sunspot group and was the source of a C1.8
flare on 19-Mar-2015 at 08:15 UT. More C-class activity is possible
over the next 24 hour period as 12297 rotates over the South West
limb, with a small chance for an isolated low M-class flare.
The position of NOAA 12297 on 19-Mar-2015 at 23:00 UT is:
S17W90, ( 921”, -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,
Shaun Bloomfield (Trinity College Dublin)
Dear RHESSI Collaborators,
Solar activity is at a moderate level. NOAA 12297 has decreased in
number of spots over the previous 24 hours, while maintaining spot
area and a beta-gamma-delta magnetic classification and increasing
in modified Zurich class to an F-type sunspot group. This region
has shown a decrease in flaring rate, but was still the source of
the largest magnitude flare since yesterday’s message, an M1.0 on
17-Mar-2015 at 22:49 UT. Further low M-class activity is possible
from 12297 as it rotates up to the South West limb.
The position of NOAA 12297 on 18-Mar-2015 at 16:00 UT is:
S16W73, ( 886”, -230” )
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,
NOAA 12297 has continued to decrease in both size and complexity as it
approaches the western limb. As a result, solar activity has
diminished substantially with only a few C-class flares since the last
message. The target region retains some mixed polarity flux in its
trailing spot that may produce additional intermediate level events
over the next 24 hours.
The position of NOAA 12297 on 17-Mar-2015 at 16:35 UT is:
S17W62, ( 815", -226" )
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 (QUB)
Dear RHESSI Collaborators,
Solar activity continues at moderate levels with two M1 flares since
the last message. NOAA 12297 is showing signs of polarity mixing in
its trailing spot but may be beginning to decay. Still a good chance
for additional low M-level events over the next 24 hours.
The position of NOAA 12297 on 16-Mar-2015 at 16:35 UT is:
S18W48, ( 683", -219" )
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 (QUB)