Dear RHESSI Collaborators,
Solar activity remains at an extremely low level. NOAA 12680 has
again maintained number of spots and area over the past 24 hours,
continuing to be classified as an alpha/H-type sunspot group. No
flares have occurred since the last message. Low B-class flares
may be possible over the following 24-hour period.
The position of NOAA 12680 on 18-Sep-2017 at 21:30 UT is:
N08W39, ( 596", 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,
Shaun Bloomfield (Northumbria University)
Dear RHESSI Collaborators,
The level of solar activity continues to be extremely low. The target
region remains the only spotted region on disk. NOAA 12680 has slowed
in its decay phase, maintaining number of spots and area. This region
continues to be classified as an alpha/H-type sunspot group, while no
flares have occurred since the last message. Low B-class flares could
be possible in the next 24 hours.
The position of NOAA 12680 on 17-Sep-2017 at 21:30 UT is:
N08W25, ( 400", 25" )
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 (Northumbria University)
Dear RHESSI Collaborators,
Solar activity is at an extremely low level. NOAA 12680 remains the
only spotted region on disk. This region showed signs of decay with
increasing in number of spots while decreasing in spot area. 12680
has continued to be classified as an alpha/H-type sunspot group and
no flares have occurred since the last message. Low B-class flares
may be possible in the following 24-hour period.
The position of NOAA 12680 on 16-Sep-2017 at 23:00 UT is:
N08W13, ( 209", 17" )
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 (Northumbria University)
Dear RHESSI Collaborators,
The level of solar activity is extremely low. A-class background
soft X-ray flux continues, with NOAA 12680 remaining the target.
12680 was again classified as an alpha/H-type sunspot group with
no change in sunspot area over the past 24 hours. No flares have
occurred since the last message. B-class activity may be possible
over the next 24 hours.
The position of NOAA 12680 on 15-Sep-2017 at 13:30 UT is:
N08E05, ( -82", 13" )
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 (Northumbria University)
Dear RHESSI Collaborators,
Solar activity is at very low levels. The background soft X-ray
flux has remained in the A-class range over the past 24 hours.
The target will continue to be the only spotted region on disk,
NOAA 12680. This region maintained spot area and classification
as an alpha/H-type sunspot group since yesterday's message. No
flares have occurred in this time. B-class flares are possible
in the following 24-hour period.
The position of NOAA 12680 on 14-Sep-2017 at 13:30 UT is:
N09E18, ( -292", 35" )
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 (Northumbria University)
Dear RHESSI Collaborators,
The level of solar activity is very low. Target region NOAA 12680
has grown very slightly in sunspot area, but remains classified
as an alpha/H-type sunspot group. This region again produced the
largest flare of the period - a C1.5 on 12-Sep-2017 at 19:03 UT.
More low C-class activity is possible in the next 24 hours.
The position of NOAA 12680 on 13-Sep-2017 at 13:30 UT is:
N09E31, ( -486", 46" )
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 (Northumbria University)
Dear RHESSI Collaborators,
Solar activity has returned to a low level. Yesterday's target NOAA
12674 has now rotated over the North West limb, so the target will
switch to NOAA 12680. This region is classified as an alpha/H-type
sunspot group, but produced a C3.0 flare on 12-Sep-2017 at 07:22 UT.
Further C-class flares are possible in the following 24-hour period.
The position of NOAA 12680 on 12-Sep-2017 at 13:30 UT is:
N09E45, ( -667", 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,
Shaun Bloomfield (Northumbria University)
Dear RHESSI Collaborators,
The level of solar activity has been very high. Yesterday's target NOAA
12673 produced an X8.2 flare on 10-Sep-2017 at 15:35 UT, but it has now
rotated over the SW limb. The most complex region on disk is NOAA 12674,
which is now approaching the NW limb. C-class activity is possible over
the next 24 hours.
The position of NOAA 12674 on 11-Sep-2017 at 20:30 UT is:
N13W89, ( 928", 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,
Shaun Bloomfield (Northumbria University)
Dear RHESSI Collaborators,
Solar activity has been at moderate levels. The target region
NOAA 12673 was the source of two low M-class flares, an
M3.7 at 10:50 UT and an M1.2 at 22:04 UT on September 9.
12673 continues to decay though remaining a D-type/beta-
gamma-delta configuration. It is almost rotating over the western
limb. At this time a major flare is unlikely and we are ending
the Major Flare Watch campaign. C-class activities are expected
with a chance of an isolated low M-class event in the next 24 hours.
The position of NOAA 12673 on September 10 at 13:30 UT is:
S09W91 (940", -145")
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 Major Flare Watch region NOAA 12673 was the source
of three low M-class flares (the largest one being an M2.9 at
15:09 UT on September 8) and numerous low C-class events
in the past 24 hours. 12673 has been classified as a D-type/
beta-gamma-delta configuration. It begins to decay slowly as
rotating over the western limb. We will continue the Major Flare
Watch for a last 24 hours with a slight chance of an isolated
major flare.
The position of NOAA 12673 on September 9 at 07:30 UT is:
S09W74 (905", -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)