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)
Dear RHESSI Collaborators,
The level of solar activity is very low with only several minor
B-class events emanating from NOAA 12539 and 12541. The
target region NOAA 12542 remains its beta/C-type configuration
but decreasing in sunspot area. 12542 continues to show mixed
polarities in its trailing portion, and is surrounded by some small
filaments. C-class activities are possible in the next 24 hour period.
The position of NOAA 12542 on May 6 at 15:43 UT is:
N10E47 (-686",204")
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 C1.7 at 22:43 UT on May 4 produced
by the new limb region (now designated as NOAA 12542). 12542
was classified as a beta/C-type sunspot group (but seems to have
a beta-gamma configuration). It is showing some mixed polarities
in its trailing positive spot. Further C-class flares are expected in
the next 24 hours.
The position of NOAA 12542 on May 5 at 19:43 UT is:
N09E58 (-798",180")
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 very low level. The largest event since the last
message is a C1.3 at 13:41 UT on May 4, associated with a CME,
produced by NOAA 12535 (N07W65). There were some B-class
events emanating from NOAA 12541 as well as a new limb region.
Yesterday's target NOAA 12539 has been flare quiet over the past
24 hours. Today the target will switch to NOAA 12541 that has a
beta/C-type sunspot group. 12541 is displaying some opposite
polarity flux emergence in its leading spot. If possible, also include
the new limb region (N12E88) within the field-of-view. C-class
activities are expected in the next 24-48 hours.
The position of NOAA 12541 on May 4 at 16:43 UT is:
N04E42 (-636",112")
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 level of solar activity is very low. The target region NOAA 12539
was the source of the largest event (a B6.4 at 00:54 UT on May 3)
in the past 24 hours. 12539 is remaining a beta/E-type classification
with slightly decreasing in sunspot area and number of spots. Only
very low activities are expected in the next 24 hour period.
The position of NOAA 12539 on May 3 at 15:43 UT is:
N16W02 (Solar X = 32", Solar Y = 324")
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 low. The target region NOAA 12539
was the source of a C2.5 (at 23:30 UT on May 1) and several B-
class events in the past 24 hours. 12539 has been classified as
a beta/E-type configuration with increasing in sunspot area and
number of spots. Another region, NOAA 12540 (N21E29), produced
the largest event, a C3.5 at 08:32 UT on May 2 associated with a
narrow CME. If possible, also include 12540 within the field-of-view.
Additional C-class activities are possible in the next 24 hours.
The position of NOAA 12539 on May 2 at 15:43 UT is:
N16E13 (Solar X = -206", Solar Y = 324")
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 at a low level. NOAA 12539 has grown
in spot area and number of spots over the past 24 hours. This region
has remained classified as a beta/C-type sunspot group, and produced
the largest event since the last message (a C2.4 flare on 1-May-2016
at 09:14 UT). Further C-class flares are possible over the following
24 hours.
The position of NOAA 12539 on 1-May-2016 at 22:00 UT is:
N17E26, ( -400", 337" )
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 continues to be low. NOAA 12537 began to
decay over the past 24 hours but remains classified as a beta/D-type
sunspot group. Newly numbered region NOAA 12539 produced the largest
flare since the last message, a C1.2 on 30-Apr-2016 at 10:40 UT. This
region was initially classified as a beta/C-type sunspot group but it
now appears to have some magnetic polarity mixing (i.e., a beta-gamma
classification). C-class flares are probable over the next 24 hours.
The position of NOAA 12539 on 30-Apr-2016 at 20:30 UT is:
N17E40, ( -584", 329" )
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)