Dear RHESSI Collaborators,
The current level of solar activity is low. A new region is
currently rotating over the East limb (so far responsible
for C-class activity), but it is too early to determine its
magnetic configuration. The largest event since the
previous message was a C3.0 flare on 19-Feb-2014 at
02:01 UT, released by NOAA 11982. The region released
several C-class events, and is likely being destabilised by
nearby NOAA 11981. Instruments with a small FOV should
focus on the area between the main spot pair within NOAA
11982 (the current primary flare site), but should include
NOAA 11981, if possible. Further C-class activity is
expected.
The position of NOAA 11982 on 19-Feb-2014 at 18:30 UT is:
S11E47, ( -696", -105" )
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,
Paul Higgins (Trinity College Dublin/LMSAL)
Dear RHESSI Collaborators,
The current level of solar activity is low. Yesterday's target
(NOAA 11977) has only produced one low C-class flare
since the previous message and has begun to decay. The
largest event was a C4.7 flare, released by the complex of
NOAA 11976 and 11980 on 18-Feb-2014 at 01:33 UT, but
both regions are in decay. The new region mentioned
yesterday, now designated as the complex of NOAA 11981
and 11982 has rotated onto the disk. The regions were
responsible for several C-class events, and continued flux
emergence is evident. The flare activity is mainly centered
on NOAA 11981, which is now designated as the target.
Further C-class activity is expected with a chance for a
high C-class event.
The position of NOAA 11981 on 18-Feb-2014 at 18:30 UT is:
S06E49, ( -728", -24" )
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,
Paul Higgins (Trinity College Dublin/LMSAL)
Dear RHESSI Collaborators,
The current level of solar activity is low. Yesterday's
target continues to decay, and has not produced
further significant activity. A new region on the East
limb was responsible for several C-class flares, but
its magnetic configuration cannot yet be determined.
The largest event since the previous message was
a C6.6 flare released by NOAA 11977 on
17-Feb-2014 at 03:04 UT. Some flux emergence is
evident in the leading portion which is likely
responsible for the enhanced activity. Further low
C-class activity is expected with a chance of a high
C-class event.
The position of NOAA 11977 on 17-Feb-2014 at 17:30 UT is:
S10W12, ( 194", -55" )
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,
Paul Higgins (Trinity College Dublin/LMSAL)
Dear RHESSI Collaborators,
The current level of solar activity is moderate. The largest
event since the previous message was an isolated,
impulsive M1.1 flare, released by NOAA 11977 on
16-Feb-2014 at 09:26 UT. Yesterday's target (NOAA 11974)
was responsible for C-class activity since the previous
message, but still maintains the largest total spot area and
the most complex magnetic configuration. Further C-class
activity is expected with a chance for a low M-class event.
The position of NOAA 11974 on 15-Feb-2014 at 17:00 UT is:
S12W62, ( 838", -147" )
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,
Paul Higgins (Trinity College Dublin/LMSAL)
Dear RHESSI Collaborators,
The current level of solar activity is low. Yesterday's target
(NOAA 11974) was responsible for C-class activity since
the previous message, with the largest event being a C6.6
flare on 14-Feb-2014 at 17:24 UT). The region has simplified
significantly and only exhibits a small weak mixed polarity
spot within its intermediate portion. The Major Flare Watch
is ended at this time. Further C-class activity is expected
with a chance for a low M-class event.
The position of NOAA 11974 on 15-Feb-2014 at 17:00 UT is:
S12W46, ( 690", -123" )
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,
Paul Higgins (Trinity College Dublin/LMSAL)
Dear RHESSI Collaborators,
The current level of solar activity is moderate. Yesterday's
target (NOAA 11974) was responsible for 4 M-class events,
since the previous message (the largest was a M2.3 flare
on 14-Feb-2014 at 02:57 UT). While the main mixed polarity
spot has weakened, new flux has emerged over the previous
24 hours, yielding a total sunspot area of >700 micro-
hemispheres. For instruments with limited FOVs, the main
flare locations within the region appear to be distributed
between the main following spot and the large newly emerged
leading spot to the North. As significant flare activity has
continued within NOAA 11974, the Major Flare Watch will
continue for at least the following 24 hours. Further M-class
activity is expected with a chance for a high M-class event.
The position of NOAA 11974 on 14-Feb-2014 at 18:00 UT is:
S07W35, ( 555", -24" )
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,
Paul Higgins (Trinity College Dublin/LMSAL)
Dear RHESSI Collaborators,
The current level of solar activity is moderate. Yesterday's
target (NOAA 11974) has continued to emerge new flux,
especially within its intermediate and North-East portions.
Since the previous message, the region was responsible
for 5 M-class events, the largest of which was a M1.8 flare
on 13-Feb-2014 at 01:40 UT. Several mixed polarity spots
are still visible within the region. For instruments with a
limited FOV, the main flare site appears to be centered on
the elongated PSL within the large mixed-polarity spot in
the North-East portion of the region. As NOAA 11974
appears to be growing more unstable, the Major Flare
Watch will continue for at least the following 24 hours.
Further M-class activity is expected with a chance for a
high M-class event.
The position of NOAA 11974 on 13-Feb-2014 at 18:30 UT is:
S12W22, ( 361", -97" )
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,
Paul Higgins (Trinity College Dublin/LMSAL)
Dear RHESSI Collaborators,
The current level of solar activity is moderate. Yesterday's
target (NOAA 11974) has continued to emerge flux and to
release M-class activity, the largest of which was a M3.7
flare on 12-Feb-2014 at 04:25 UT. The magnetic
configuration of the region now exhibits a double polarity-
separation line (PSL) with some evidence for shearing at
each line. Two mixed-polarity spots are also visible, one
at each PSL. Considering the continued M-class flare
activity and magnetic configuration of the region, the Major
Flare Watch will continue for at least the following 24 hours.
Further M-class activity is expected with a chance for a high
M-class event.
The position of NOAA 11974 on 12-Feb-2014 at 18:20 UT is:
S12W09, ( 151", -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,
Paul Higgins (Trinity College Dublin/LMSAL)
Dear RHESSI Collaborators,
The current level of solar activity is moderate. Yesterday's
target (NOAA 11974) has continued to emerge flux, showing
rapidly moving spots in its intermediate portion that have
resulted in a highly sheared polarity-separation line and a
sizable mixed-polarity spot at its center. Since the last
message, the region was responsible for high C-class and
low M-class activity, with the largest event being a M1.8 flare
on 11-Feb-2014 at 16:51 UT. As the last three events have
steadily increased in magnitude, a Major Flare Watch is now
in effect (due to the significant chance for a >M.5 flare in the
following 24 hours). Further M-class activity is expected, with
a significant chance for a major flare.
The position of NOAA 11974 on 11-Feb-2014 at 18:00 UT is:
S13E02, ( -34", -108" )
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,
Paul Higgins (Trinity College Dublin/LMSAL)
Dear RHESSI Collaborators,
The current level of solar activity is low. Yesterday's target
(NOAA 11967) has completely rotated over the west limb.
The largest event since the previous message was a M1.0
flare, released by a new region rotating onto the East limb
on 09-Feb-2014 at 16:17 UT. The magnetic configuration of
this region cannot yet be determined. NOAA region 11974
has undergone flux emergence within its North-East portion
and now exhibits a mixed-polarity spot. So far 11974 has
released two C-class flares since the previous message.
Further C-class activity is expected with a chance for a low
M-class event.
The position of NOAA 11974 on 10-Feb-2014 at 18:20 UT is:
S12E13, ( -213", -94" )
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,
Paul Higgins (Trinity College Dublin/LMSAL)