MM#009 Default HESSI Target
Dear RHESSI Collaborators,
Target region NOAA 2638 is mostly unchanged maintaining
two separate leader polarity sunspots and its beta magnetic
configuration. 2638 produced a few B-class events in the
past 24 hours. B-class events expected with a C-class
event possible in the next 24 hour period.
The position of NOAA 2638 on February 21 at 11:45 UT is:
N18E58 (Solar X = -784", Solar Y = 358")
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 east limb target region is now numbered NOAA 2638.
2638 includes two closely spaced regions with beta
magnetic configurations that appear to have some
interaction. 2638 was the source of a few B-class
events since the last message. The largest was
a B7.5 at 02/20/14:25 UT. B-class events expected with
a C-class event possible in the next 24 hours.
The position of NOAA 2638 on February 20 at 13:45 UT is:
N18E78 (Solar X = -903", Solar Y = 321")
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 east limb target region has rotated onto the visible
solar disk but is still too close to the limb to ascertain its
magnetic complexity. The target was the source of two
occulted B-class events since the last message. The
largest was a B3.0 at 02/19/05:41 UT. There is a separate
region with a large leader sunspot located just south
(N15E90) of the target region. B-class events probable
with the chance of a C-class event in the next 24 hours.
The position of the target on February 19 at 17:00 UT is:
N20E85 (Solar X = -909", Solar Y = 339")
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 2636 has decayed since the last message
and was quiescent. The target will switch to a region located
about one day beyond the northeastern limb. The region
was the source of occulted minor B-class activity. Additional
B-class activity is possible in the next 24 hour period.
The approximate position of the target on Feb. 18 at 03:30 UT is:
N16E87 (Solar X = -932", Solar Y = 271")
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 2636 was the source of a minor B1.3
event at 02/17/09:56 UT. 2636 has weak emerging flux
within its leading portion adding a few small sunspots.
No significant solar flare activity expected in the next 24
hours.
The position of NOAA 2636 on February 17 at 07:45 UT is:
N12E40 (Solar X = 612", Solar Y = 289")
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 2635 (N13W75) has decayed
significantly and is now spotless. The target will switch
to NOAA 2636 located in the northeastern quadrant.
2636 and not 2635, as was mentioned in the message
yesterday, was the source of the B2.3 event at 02/15/12:42 UT.
2636 currently has a small C-type/beta sunspot group with
a tilted E-W magnetic inversion line. No significant flare activity
expected in the next 24 hour period.
The position of NOAA 2636 on February 16 at 14:30 UT is:
N11E44 (Solar X = -663", Solar Y = 267")
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 2635 continues to decay especially
within its leading polarity portion. 2635 was the source
of a minor B2.3 event at 02/15/12:42 UT. No significant
solar flare activity expected in the next 24 hour period.
The position of NOAA 2635 on February 15 at 14:30 UT is:
N12W62 (Solar X = 840", Solar Y = 254")
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,
NOAA 2635 has decayed significantly especially within
its leading polarity portion. No significant flare activity
expected in the next 24 hour period.
The position of NOAA 2635 on February 14 at 14:30 UT is:
N12W49 (Solar X = 718", Solar Y = 275")
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 NOAA 2635 is classified a D-type/beta region
but has decayed somewhat since the last message. 2635
was the source of a minor B1.8 event at 02/13/06:36 UT.
B-class events possible in the next 24 hour period.
The position of NOAA 2635 on February 13 at 14:30 UT is:
N12W36 (Solar X = 560", Solar Y = 292")
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,
Solar activity continues at a very low level. The largest event
since the last message was a B1.5 at 04:30 UT today produced
by the target region NOAA 12635. 12635 retains a beta/D-type
classification. It is connected to NOAA 12634 (previous target)
by a small filament. Coronal loops above these two regions are
interacting and producing some brightenings and jets. Low-level
events are likely in the next 24 hours.
The position of NOAA 12635 on February 12 at 14:30 UT is:
N12W24 (388", 303")
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)