Dear RHESSI Collaborators,
The level of solar activity remains low. NOAA region 12147 has produced
several B-class flares since yesterday's C1.8 flare (on 18-Aug-2014 at
13:37 UT), but has decreased in magnetic complexity by being classified
as an alpha/H-type sunspot group. NOAA 12139 has continued in its decay,
decreasing in area, number of spots and losing its polarity mixing to be
classified as a beta/C-type sunspot group. However, this region was the
source of the largest event since yesterday's message (a C1.2 flare on
18-Aug-2014 at 16:47 UT). Further C-class activity is possible over the
next 24 hours, with a very small chance for an isolated low M-class flare.
The position of NOAA 12139 on 19-Aug-2014 at 14:30 UT is:
N13W32, ( 491", 119" )
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,
Solar activity is at a low level. NOAA regions 12146 and 12147 recently
rotated over the East limb and both produced C1.8 flares in the past 24
hours (from 12146 on 17-Aug-2014 at 19:41 UT; from 12147 on 18-Aug-2014
at 13:37 UT). NOAA 12139 has shown signs of decay by decreasing in area,
number of spots and now being classified as a beta-gamma/C-type sunspot
group. This region has not produced any noteworthy activity in the past
24 hours, but has maintained some small opposite polarity spots in close
proximity to the primary leading spots. More C-class activity is possible
over the next 24 hours, with a small chance for an isolated low M-class
flare.
The position of NOAA 12139 on 18-Aug-2014 at 16:00 UT is:
N14W23, ( 358", 128" )
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 is low. Three active regions (NOAA
12139, 12141 and 12144) are now classified as beta-gamma/D-type
sunspot groups, but only 12139 and 12144 produced flares in the
past 24 hours. The largest magnitude event in this period was a
B8.4 flare from NOAA 12139 on 17-Aug-2014 at 00:10 UT. Further
B-class activity is expected, with C-class flaring possible and
a small chance for an isolated low M-class flare.
The position of NOAA 12139 on 17-Aug-2014 at 12:30 UT is:
N14W07, ( 111", 121" )
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,
Solar activity is at a low level. NOAA 12139 has emerged new magnetic
flux in its intermediate portion over the past 24 hours, increasing
in spot area and number of spots. This region is now classified as a
beta-gamma/D-type sunspot group, but shows signs of a weak delta spot
configuration in high-resolution images. 12139 has increased in flare
productivity, being the source of 2 low C-class events since the last
message (the largest being a C1.5 flare on 15-Aug-2014 at 21:46 UT).
Further C-class activity is probable over the next 24 hours, with a
very small chance for a low M-class event if NOAA 12139 continues to
emerge new magnetic flux.
The position of NOAA 12139 on 16-Aug-2014 at 12:30 UT is:
N13E07, ( -115", 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,
Shaun Bloomfield (Trinity College Dublin)
Dear RHESSI Collaborators,
The level of solar activity is low. NOAA 12139 has maintained spot area
coverage over the past 24 hours, but has merged several spots within its
trailing portion. This region is classed as a beta/D-type sunspot group,
has increased in B-class flare productivity since the last message, and
produced a C1.1 flare on 15-Aug-2014 at 11:54 UT. Yesterday's target has
now been designated as NOAA 12141 and has continued to emerge new flux
and produce B-class flaring. Further B-class activity is expected over
the next 24 hours, with a chance for some low-to-mid C-class flares.
The position of NOAA 12141 on 15-Aug-2014 at 14:00 UT is:
N15E52, ( -726", 179" )
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,
Solar activity continues to be at a low level. NOAA 12139 has not grown
in spot area over the past 24 hours, but has increased in number of spots
(primarily in its intermediate portion). This region is still classified
as a beta/D-type sunspot group and produced the largest flare event since
the last message (a B6.3 flare on 14-Aug-2014 at 04:18 UT). A new region
emerging in the North East quadrant has also produced B-class flares and
recently formed several spots, so this emerging region is the new target.
More B-class activity is expected over the next 24 hours, with a chance
for a low-to-mid C-class flare.
The approximate position of this region on 14-Aug-2014 at 18:00 UT is:
N15E62, ( -807", 194" )
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,
Solar activity is a low level. NOAA 12139 has marginally grown in spot
area over the past 24 hours and displays a fragmented cluster of small
trailing spots. This region has remained classified as a beta/D-type
sunspot group, but may still have small scale magnetic mixing within
its intermediate portion. NOAA 12139 produced the largest event since
the last email, a B7.4 flare on 13-Aug-2014 at 11:08 UT. More B-class
activity is expected over the next 24 hours, with a chance for a low
C-class flare.
The position of NOAA 12139 on 13-Aug-2014 at 16:00 UT is:
N14E46, ( -665", 155" )
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 is very low. Yesterday's target region NOAA
12139 has now rotated onto the visible disk to enable classification.
This region displays the characteristics of a beta/D-type sunspot group,
but may have small scale magnetic mixing in its intermediate portion
(i.e., potentially a beta-gamma classification). 12139 has continued to
be the source of B-class activity, producing two flare events since the
last email. Further B-class activity is expected over the next 24 hours,
with a chance for a low-to-mid C-class flare.
The position of NOAA 12139 on 12-Aug-2014 at 14:30 UT is:
N14E60, ( -797", 176" )
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,
Solar activity remains at a low level. NOAA 12135 continues to be
the largest spotted region on disk, but has simplified in terms of
magnetic complexity (now classified as a beta/D-type sunspot group)
and did not produce any activity since yesterday's message. A new
region has rotated over the North East limb and was the source of
two high B-class flares. This region remains too close to the limb
to determine an accurate classification. Further B-class activity
is expected in the next 24 hours, with a chance for a low-to-mid
C-class flare.
The approximate position of this region on 11-Aug-2014 at 16:00 UT is:
N14E85, ( -915", 219" )
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 is low. Yesterday's target (12135)
has not released further activity. On the other hand NOAA
12137 has emerged as a double bipole and was responsible
for B-class activity since the previous message. Further
B-class activity is expected, with a chance for a C-class
flare.
The position of NOAA 12137 on 10-Aug-2014 17:30 UT is:
N12E12, ( -199", 95" )
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)