Dear RHESSI Collaborators,
NOAA region 11432 appears to be in decay phase, decreasing in spot
area coverage and increasing in number of spots. Recently numbered
NOAA 11435 has experienced a significant degree of flux emergence
between the leading and trailing spots since a beta/D-type sunspot
group classification was issued on 17-Mar-2012 at 00:30 UT. A good
chance exists for C-class activity, especially if 11435 continues
to undergo flux emergence.
The position of NOAA 11435 on 17-Mar-2012 at 11:00 UT is:
S25W30, ( 437", -312" )
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,
NOAA region 11432 has been confirmed as the source of the M1.8
flare on 15-Mar-2012 at 07:23 UT, meaning that it has produced
two low M-class events in as many days. The spots in 11432 are
quite widely distributed and after some merging of spots it is
now classed as a beta-gamma/E-type sunspot group. More C-class
activity is expected, with a chance for another M-class event.
The position of NOAA 11432 on 16-Mar-2012 at 11:30 UT is:
N14W19, ( 311", 342" )
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,
NOAA 11429 is now on the western limb. A region near disk center, NOAA
11432, was the source of an M2.8 flare at 15:08 UT yesterday, and possibly
an M1 flare today (data not yet available). The region has minimal sunspot
presence but is classified as a beta-gamma region and is particularly
bright in H-alpha emission. NOAA 11432 shall be the new target region.
Chance for further intermediate level activity.
The position of NOAA 11432 on 15-Mar-2012 at 10:00 UT is:
N14W03, ( 49", 349" )
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,
Ryan Milligan (QUB)
Dear RHESSI Collaborators,
The target region NOAA 11429 was the source of an M7.9 flare at 17:12 UT
yesterday as a result of possible flux emergence. The region retains its
beta-gamma configuration and may produce another M-class flare before west
limb passage.
The position of NOAA 11429 on 14-Mar-2012 at 08:00 UT is:
N18W67, ( 845", 340" )
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,
Ryan Milligan (QUB)
Dear RHESSI Collaborators,
NOAA 11429 has diminished considerably in both size and complexity as it
nears the western limb and is now classified as a beta-gamma region. The
region has only produced two low C-class flares in the past 24 hours. At
this time we are ending the Major Flare Watch campaign as the chance of
another major flare is unlikely. However, NOAA 11429 shall continue to be
the target region as intermediate level events are still possible before
west limb passage.
The position of NOAA 11429 on 13-Mar-2012 at 12:00 UT at UT is:
N18W57, ( 771", 359" )
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,
Ryan Milligan (QUB)
Dear RHESSI Collaborators,
NOAA 11429 has remained relatively quiescent since the last message. The
region is still showing signs of decay but retains its beta-gamma-delta
configuration. There is also a long filament channel extending along the
neutral line. Major Flare Watch conditions shall remain in effect due to
the possibility of another mid-to-high M-class flare.
The position of NOAA 11429 on 12-Mar-2012 at 08:00 UT is:
N18W43, ( 627", 381" )
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,
Ryan Milligan (QUB)
Dear RHESSI Collaborators,
NOAA 11429 was the source of an M8.4 flare at 17:15 UT yesterday. The
region remains largely unchanged in terms of size and complexity. We
shall extend the Major Flare Watch campaign for a further 24 hours due
to the possibility of another high M-class event.
The position of NOAA 11429 on 11-Mar-2012 at 14:00 UT is:
N18W34, ( 515", 392" )
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,
Ryan Milligan (QUB)
Dear RHESSI Collaborators,
NOAA 11429 continues to show signs of decay and has produced several
C-class flares since the last message. A new region on the eastern limb was
also the source of a C9.7 flare at 19:59 UT yesterday. NOAA 11429 retains
its delta configuration and shall continue to be the target region for a
further 24 hours. Chance remains for an event greater than M5.
The position of NOAA 11429 on 10-Mar-2012 at 12:00 UT is:
N18W20, ( 315", 406" )
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,
Ryan Milligan (QUB)
Dear RHESSI Collaborators,
NOAA 11429 was the source of an M6.3 flare at 03:22 UT today as it crossed
the central meridian. The region has begun to show signs of decay with its
sunspot area dropping below 1000 uh although it retains its
beta-gamma-delta configuration with a highly sheared magnetic inversion
line. Good chance of another event of magnitude M5 or greater over the next
24-48 hours.
The position of NOAA 11429 on 9-Mar-2012 at 10:00 UT is:
N17W05, ( 82", 398" )
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,
Ryan Milligan (QUB)
Dear RHESSI Collaborators,
NOAA 11429 has remained relatively quiet since the X5.4 flare yesterday.
However the region continues to undergo new flux emergence and is now
greater than 1200 uh in size. Some of this new flux emergence has resulted
in the formation of a large positive island delta near the core of the
active region. The region has also become significantly brighter in H-alpha
emission over the past 24 hours and its polarity inversion line remains
highly sheared. The combination of these conditions is conducive for the
production of another large-scale X-class flare.
The position of NOAA 11429 on 8-Mar-2012 at 10:30 UT is:
N17E09, ( -139", 397" )
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,
Ryan Milligan (QUB)