Dear RHESSI Collaborators,
The level of solar activity is low. According to new data, it seems that
the largest C1.7 event at 06:51 UT on April 3 was produced by NOAA
12318, not by NOAA 12317 (N11W66) as it was reported yesterday.
This C1.7 event was associated with a CME at the east limb. NOAA
12318 was also the source of a B9.8 and a C1.0 activity earlier today.
12318 is rotating onto the solar disk, and has a C-type/beta classification.
There is an unnumbered region, located in the southeast quadrant,
developing rapidly. It has the potential to produce C-class activity.
Yesterday's target region 12317 has been flare quiet, and is approaching
the west limb. At this time, we switch the target region to NOAA 12318.
Additional low-level activity is likely in the next 24-48 hours.
The position of NOAA 12318 on April 4 at 11:35 UT is:
N09E62 (Solar X = -837", Solar Y = 198")
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 low levels. There are two large filaments visible on the
solar disk for several days. The target region NOAA 12317 was the source
of a C1.7 event at 06:51 UT on April 3, the largest event since the last
message. NOAA 12317 increased in spot area and number of spots with
retaining its D-type/beta classification. 12317 is showing some flux
emergence in both the leading and trailing portions. It has the potential
to produce low C-class activity in the next 24 hour period.
The position of NOAA 12317 on April 3 at 11:35 UT is:
N09W52 (Solar X = 748", Solar Y = 215")
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 low levels. Yesterday's target region NOAA 12305
(S10W87) has remained flare quiet since the last message, and is
rotating over the limb. At this time, we switch the target region to NOAA
12317, which appeared just yesterday and has developed rapidly to a
D-type/beta configuration. Low C-class activity is likely over the next 24
hours.
The position of NOAA 12317 on April 2 at 11:35 UT is:
N10W39 (Solar X = 596", Solar Y = 249")
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 GOES soft X-ray flux is flat
below the C-level. Yesterday's target region NOAA 12305 continues
to decay, and is classified as a C-type/beta magnetic configuration.
12305 is approaching the South West limb. No significant flare activity
is expected in the next 24 hours.
The position of NOAA 12305 on April 1 at 11:35 UT is:
S11W71 (Solar X = 892", Solar Y = -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,
Ying Li (Nanjing University / Montana State University)
Dear RHESSI Collaborators,
Solar flare activity continues at low levels. The largest event was
a C4.2 at 21:34 on March 30, which seems to be an occulted flare
beyond the North West limb. Yesterday's target region NOAA 12305
has produced several low C-class events since the last message.
12305 maintains its D-type/beta magnetic classification. It is showing
some flux emergence as well as mixed polarities in its leading portion.
There is a chance for low C-class activity over the next 24 hour period.
The position of NOAA 12305 on March 31 at 11:35 UT is:
S10W58 (Solar X = 803", Solar Y = -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,
Ying Li (Nanjing University / Montana State University)
Dear RHESSI Collaborators,
Solar activity remains at low levels. The largest event was a C4.7 at
01:38 UT on March 30 produced by NOAA 12303 (N18W91), which
has rotated completely over the limb now. Yesterday's target region
NOAA 12305 was the source of a C1.6 event at 18:45 on March 29.
12305 is classified as a D-type/beta magnetic configuration. Although
12305 is in decay phase, it is the most potential region on the solar
disk to produce C-class activity in the next 24 hours.
The position of NOAA 12305 on March 30 at 11:35 UT is:
S10W43 (Solar X = 647", Solar Y = -85")
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 low levels. NOAA 12303 (N18W85) was the
source of numerous low C-class events before rotating off the visible
disk. Yesterday's target region NOAA 12305 is mostly unchanged
preserving an E-type/beta-gamma configuration. It continues to show
some flux emergence in its leading portion. There is still a chance for
C-class activity over the next 24-48 hours.
The position of NOAA 12305 on March 29 at 11:35 UT is:
S08W26 (Solar X = 418", Solar Y = -33")
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. NOAA 12309 (N14W86) was the
source of a few C1 events as it was rotating over the west limb.
Yesterday’s target region NOAA 12305 has produced two C2 events
today. 12305 maintains its beta-gamma configuration with increasing
in spot area and count somewhat. 12305 is showing some mixed
polarities in its intermediate portion. It has the potential to produce
further low C-class activity.
The position of NOAA 12305 on March 28 at 12:35 UT is:
S09W17 (Solar X = 278", Solar Y = -42")
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 returned to low levels. There were three C1 events
produced by the target region 12305 in the past 24 hours. 12305 has
lost some of its spot area, number of spots, and magnetic complexity.
It is classified as a C-type/beta-gamma configuration. Even though it
is now in decay phase, 12305 will continue to be the target region.
Additional low C-class events are likely within the next 24 hours.
The position of NOAA 12305 on March 27 at 12:35 UT is:
S08W02 (Solar X = 33", Solar Y = -20")
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 intermediate-to-low levels. The target region NOAA
12305 has produced a few low C-level events since the last message.
12305 continued to increase its sunspot area and number of spots, and
was classified as an E-type/beta-gamma-delta magnetic configuration.
It is showing some flux emergence at both the leading and trailing portions.
Further C-class activity is expected over the next 24 hours.
The position of NOAA 12305 on March 26 at 12:35 UT is:
S08E12 (Solar X = -198", Solar Y = -22")
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)