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)
Dear RHESSI Collaborators,
Solar activity continues to be very low. The largest event since
the last message was a B7.4 at 16:16 UT on May 13 produced
by NOAA 12544 (N20E11) due to a filament eruption. The target
region NOAA 12542 only produced several low-level B-class
events. 12542 is now classified as a D-type/beta-gamma magnetic
configuration with increasing in sunspot area slightly. B-class
activities are expected, with a chance of C-class events in the
next 24 hour period.
The position of NOAA 12542 on May 13 at 17:17 UT is:
N10W46 (674", 196")
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 been very low with GOES soft X-ray flux below
the C-level. Target region NOAA 12542 was the source of a few
minor B-class events. 12542 has lost some of its magnetic complexity,
and is now classified as a beta/C-type sunspot group. It continues to
show mixed polarities at the edge of the main negative spot. B-class
flares are expected, with a chance of minor C-class events in the next
24 hours.
The position of NOAA 12542 on May 12 at 18:17 UT is:
N11W34 (522",220")
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 been at very low levels since the last message.
Target region NOAA 12542 was the source of several B-class events,
the largest being a B8.2 at 14:14 UT on May 11. 12542 was reclassified
as a C-type region but remaining its complex beta-gamma magnetic
configuration. It is displaying bright H-alpha plage and surges, with the
potential to produce some low C-class activities.
The position of NOAA 12542 on May 11 at 17:43 UT is:
N12W22 (349",243")
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 a very low level. The target region
NOAA 12542 was the source of several B-class events due
to filament interaction and eruption. 12542 has been classified
as a complex D-type/beta-gamma magnetic configuration with
increasing in sunspot area and number of spots significantly.
It is continuously showing positive flux emergence at the edge
of the main negative spot. C-class activities are likely in the
next 24 hours.
The position of NOAA 12542 on May 10 at 21:43 UT is:
N12W10 (161",247")
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 been at very low levels. The largest event
since the last message was a B9.4 at 05:11 UT on May 9
produced by NOAA 12541 (N04W24), associated with a filament
eruption in the southeast of the region. Target region NOAA 12542
also produced a B-class event (B3.3 at 16:17 UT on May 9) due
to an interaction of two filaments around the region (in its south
and north). 12542 was re-classified as a beta/C-type region but
decreasing in sunspot area. It continues to show mixed polarities
around the negative leading spot. Only minor events are expected
in the next 24 hour period.
The position of NOAA 12542 on May 9 at 17:43 UT is:
N12E05 (-81",250")
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 a very low level. The largest event in
the past 24 hours was a B5.3 at 02:25 UT on May 8 produced
by NOAA 12541 (N04W10). Target region NOAA 12542 has
begun to decay and fragment, and has been classified as an
alpha/H-type configuration but slightly increasing in sunspot
area. It produced a small filament eruption at ~22:30 UT on
May 7. There is still a filament located in its south. No significant
events are likely over the following 24 hours.
The position of NOAA 12542 on May 8 at 16:43 UT is:
N11E18 (-289",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,
Ying Li (Nanjing University / Montana State University)
Dear RHESSI Collaborators,
Solar activity continues to be very low. The largest event since
the last message was a C1.9 at 17:04 UT on May 7 produced by
NOAA 12541 (N04E03). Target region NOAA 12542 is remaining
its beta/C-type configuration with slightly increasing in sunspot
area. A filament connected to 12542 (in its north) interacted with
another quiet-Sun filament (more north) and erupted (should be
accompanied by a CME). 12542 continues to show obvious mixed
polarities in its trailing spot. Low C-class events are likely in the
next 24 hours.
The position of NOAA 12542 on May 7 at 18:43 UT is:
N10E31 (-483",213")
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)