Dear RHESSI Collaborators,
The level of solar activity is very low. Yesterday's target has
been designated as NOAA region 11704, and classified by NOAA as
an alpha/H-type sunspot group. NOAA regions 11702 and 11703 have
shown signs of marginal growth in spot area and number of spots,
but none of the regions on disk have produced any flare activity
since yesterday's message. The target will switch to NOAA 11703
as it rotates toward the South West limb over the next 24 hours.
B-class activity is likely, with a small chance for an isolated
low C-class event.
The position of NOAA 11703 on 24-Mar-2013 at 13:00 UT is:
S25W79, ( 857", -384" )
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 region 11692 has now rotated
over the limb and lies completely beyond view. Yesterday's emerging
region has been designated as NOAA 11703 and assigned a beta/D-type
sunspot group classification by NOAA, but has remained quiet in the
past 24 hours. A new spotted region is rotating over the North East
limb. This region has a well developed leading spot, is bright in
chromospheric emission and large-scale coronal loops, and was the
source of a B6.8 flare on 23-Mar-2013 at 12:15 UT. Further B-class
activity is expected, with a small chance for a low C-class event.
The approximate position of this region on 23-Mar-2013 at 14:30 UT is:
N17E90, ( -920", 279" )
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 moderate level. A new flux region is emerging in
the South West quadrant and has developed several spots in the previous
12 hours. NOAA region 11692 has rotated to the North West limb and was
last classified by NOAA as a beta/D-type sunspot group. This region was
the source of several low C-class events in the past 24 hours, as well
as an M1.6 on 21-Mar-2013 at 21:42 UT. Further low C-class activity is
likely with a small chance for another high C-/low M-class event before
the higher-lying loops of NOAA 11692 rotate completely beyond the limb.
The position of NOAA 11692 on 22-Mar-2013 at 14:30 UT is:
N09W90, ( 950", 150" )
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 region 11692 has continued
to emerge magnetic flux over the past 24 hours, primarily in front
of the main negative-polarity spot. This region has grown in both
spot area and number of spots, and remains classified by NOAA as a
beta/D-type sunspot group. NOAA 11692 has remained the most active
region since yesterday's message and produced the largest flare (a
C1.0 on 20-Mar-2013 at 19:26 UT). Further low C-class activity is
possible, with a very small chance for a high C-/low M-class event.
The position of NOAA 11692 on 21-Mar-2013 at 14:00 UT is:
N09W79, ( 933", 172" )
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 region 11698 was the source
of a foot-point occulted C5.5 flare on 20-Mar-2013 at 00:39 UT, but
has now rotated completely beyond the South West limb. NOAA region
11692 has emerged mixed-polarity flux along the leading edge of the
primary negative-polarity spot over the past 24 hours, and is now
designated by NOAA as a beta/D-type sunspot group. This region has
highly elongated penumbrae with indications of a beta-gamma magnetic
classification, and has produced several low C-class events in the
past 24 hours. Further low C-class activity is likely, with a small
chance for a high C-/low M-class event if NOAA 11692 emerges more
magnetic flux.
The position of NOAA 11692 on 20-Mar-2013 at 14:00 UT is:
N09W65, ( 862", 199" )
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 11698 has continued to
produce C-class activity in the past 24 hours, the largest being a
C4.3 flare on 19-Mar-2013 at 00:51 UT. This region is designated as
a beta/E-type sunspot group but has now rotated over the South West
limb, with a resulting decrease in the background X-ray flux. A new
positive-polarity spot has emerged in the past 12 hours in front of
the primary negative-polarity spot of NOAA 11692. This new magnetic
flux might destabilize the previously quiescent magnetic topology,
but the target will remain with the flare-productive NOAA 11698 as
its higher-lying loops will remain visible for the next 12-24 hours.
Further low C-class activity is possible, with a small chance for
an isolate high C-/low M-class event.
The position of NOAA 11698 on 19-Mar-2013 at 14:30 UT is:
S19W90, ( 911", -311" )
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 low-to-moderate levels. NOAA 11696 produced no flares
in the past 24 hours. This region has increased in number of spots, while
maintaining spot area and a beta-gamma/E-type sunspot group classification
by NOAA. However, mixed-polarity magnetic flux in the intermediate portion
of NOAA 11696 has decreased in magnitude over the past 12 hours. NOAA 11698
has grown in both spot area and number of spots as it approaches the limb,
and appears quite bright in chromospheric UV emission. This region has been
reclassified by NOAA as a beta/E-type sunspot group, and has continued to
produce low C-class events (the largest being a C2.8 flare on 18-Mar-2013
at 03:15 UT). Further low C-class activity is likely, with a small chance
for an isolated high C-/low M-class event.
The position of NOAA 11698 on 18-Mar-2013 at 14:00 UT is:
S19W80, ( 897", -291" )
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 currently low. NOAA region 11698 was
the source of the largest event in the past 24 hours, a B8.0 flare
on 16-Mar-2013 at 18:50 UT. This region has grown in terms of spot
area and number of spots (mostly in its intermediate portion), and
is classified by NOAA as a beta/D-type sunspot group. NOAA region
11696 also produced B-class activity (a B6.9 flare on 17-Mar-2013
at 00:51 UT) and remains classified by NOAA as a beta-gamma/E-type
sunspot group. This region has evolved somewhat over the past 12
hours with some of the intermediate spots developing penumbrae.
B-class activity is expected, with C-class events possible. The
level of activity might increase in the following 24 hours as the
previously flare-productive region NOAA 11682 is due to return
over the South East limb.
The position of NOAA 11696 on 17-Mar-2013 at 12:30 UT is:
N04W43, ( 657", 154" )
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 region 11692 has not produced any
activity since the M1.1 flare on 15-Mar-2013 at 05:52 UT. NOAA 11696 has
maintained a beta-gamma/E-type sunspot group classification, and appears
to have developed new spots in its intermediate portion in the past 12
hours. Further B-class activity is expected, with a chance for some low
C-class events.
The position of NOAA 11696 on 16-Mar-2013 at 15:00 UT is:
N05W30, ( 487", 187" )
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 generally at a low level. NOAA region 11692 was
reclassified by NOAA as an alpha/H-type sunspot group in the past
24 hours, but produced an M1.1 flare on 15-Mar-2013 at 05:52 UT.
This region is the largest spot area coverage region on disk, and
is located close to NOAA 11696 that has been reclassified by NOAA
as a beta-gamma/E-type sunspot group. NOAA 11692 had produced low-
to mid- C-class activity 2-3 days ago. Further B-class activity is
expected, with a chance for a mid-to-high C-class event.
The position of NOAA 11692 on 15-Mar-2013 at 13:00 UT is:
N09E02, ( -30", 269" )
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) and
Paul Higgins (Trinity College Dublin)