MM#009 Default HESSI Target
Dear RHESSI Collaborators,
The target of choice today will switch from NOAA 1461 to
a strong EFR located in the southwestern quadrant.
This EFR was the source of 4 C-class events today
The largest was a C8.9 at 04/18/12:39 UT.
C-class events expected with the chance of an M-class
event in the next 24 hour period.
The position of the target EFR on April 18 at 12:30 UT is:
S26W29 (Solar X = 418", Solar Y = -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,
Bill Marquette (Helio Research)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
The target region, now numbered NOAA 1461, was the source
of an M1.7 limb event at 04/16/17:40 UT. The event produced
a very impressive flare spray off the northeast limb.
The region also produced two C-class events. 1461 is
currently an unimpressive plage with an H-type/alpha
sunspot group. Additional C-class activity is possible in
the next 24 hour period.
The position of NOAA 1461 on April 17 at 03:30 UT is:
N12E75 (Solar X = -904", Solar Y = 221")
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,
Bill Marquette (Helio Research)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
The NE limb target region was the source of the C1.8 event
at 04/16/00:45 UT. The region is still too close to the
limb to ascertain its sunspot group type and magnetic
classification. Another C-class event is possible in the
next 24 hours.
The approximate position of the target on April 16 at 00:30 UT is:
N12E88 (Solar X = -935", Solar Y = 201")
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,
Bill Marquette (Helio Research)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
The target region will switch from NOAA 1455 to a region located
just beyond the northeast limb. This region was the source of
two limb occulted C-class x-ray events. The largest was a C2.7
at 04/15/01:40 UT. Additional C-class events are possible in
the next 24 hour period.
The approximate position of the target on April 15 at 01:30 UT is:
N11E88 (Solar X = -938", Solar Y = 185")
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,
Bill Marquette (Helio Research)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
Target region, NOAA 1455, was the source of numerous B-class
events since the last message. The largest was a B9.8 event
at 04/14/00:47 UT. 1455 is maintaining a D-type/beta-gamma
sunspot group. B-class activity is expected with the chance
of a C-class event in the next 24 hour period.
The position of NOAA 1455 on April 14 at 13:00 UT is:
N07W27 (Solar X = 432", Solar Y = 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,
Bill Marquette (Helio Research)
Dear RHESSI Collaborators,
NOAA region 11455 has continued to emerge new flux in the last 24 hours.
This region has increased in spot area and number of spots, and produced
B-class activity. NOAA 11455 is now classified as a beta/D-type sunspot
group, with the trailing positive polarity spots still developing mature
penumbrae. More B-class activity is expected, with a chance for C-class
activity if 11455 continues to undergo flux emergence.
The position of NOAA 11455 on 13-Apr-2012 at 11:00 UT is:
N06W11, ( 184", 193" )
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,
Yesterday's target is now designated as NOAA region 11455. This region
has merged some smaller spots into more substantial leading spots, with
additional spot emergence. NOAA 11455 was the source of several B-class
events and has a beta/C-type sunspot group classification. More B-class
activity is expected in the next 24 hours, with a chance for a C-class
flare if 11455 continues to emerge new flux.
The position of NOAA 11455 on 12-Apr-2012 at 09:00 UT is:
N07E03, ( -50", 213" )
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 remains low. Yesterday's target was the
source of 2 B-class flares and is now designated as NOAA 11454 with
a beta/C-type sunspot group classification. A newly spotted region
appeared in the North East quadrant a few hours before today's NOAA
number designations were issued. This region has experienced bipolar
flux emergence within pre-existing negative plage field, displaying
some polarity mixing between the primary leading and trailing spots.
B-class events are probable in the next 24 hours, with a chance for
C-class activity if this new region continues to emerge new flux.
The approximate position of this region on 11-Apr-2012 at 09:30 UT is:
N08E16, ( -263", 226" )
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 11450 has now rotated
over the North West limb while several currently unnumbered regions
are rotating over the South East limb. The region at ~S25 is likely
to be the return of NOAA region 11440 and that at ~S13 is likely to
be NOAA 11436 returning. The latter region appears to have a spot in
its leading polarity faculae but the region is too close to the limb
to determine a magnetic complexity. B-class activity is possible in
the next 24 hours.
The approximate position of this region on 10-Apr-2012 at 12:00 UT is:
S13E80, ( -919", -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,
Shaun Bloomfield (Trinity College Dublin)
Dear RHESSI Collaborators,
NOAA region 11450 has decreased in number of spots as it nears the
North West limb, most likely due to foreshortening effects, but has
maintained area because of the dominating leading spot. This region
has an alpha/H-type sunspot group classification and produced a C2.6
flare on 9-Apr-2012 at 01:11 UT. Further B-class events are expected,
with a chance of more C-class activity before 11450 rotates over the
North West limb.
The position of NOAA 11450 on 9-Apr-2012 at 09:00 UT is:
N15W80, ( 911", 263" )
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)