MM#009 Default HESSI Target
Dear RHESSI Collaborators,
NOAA 1917 slowly developed since the last message.
The region is maintaining its D-type/beta-gamma sunspot
group. 1917 was the source a few C-class events. The
largest was a C2.3 at 12/14/11:24 UT. Additional C-class
activity is possible in the next 24 hours.
The position of NOAA 1917 on December 14 at 16:30 UT is:
S15W20 (Solar X = 323", Solar Y = -239")
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 1916 produced a limb occulted C1.7 event
at 12/13/06:24. 1916 has completed west limb passage.
The new target is NOAA 1917 a D-type/beta-gamma region
with emerging flux located in its northern portion. 1917 was
the source of a C4.8 event at 12/13/03:15 UT. Another C-class
event possible in the next 24 hours.
The position of NOAA 1917 on December 13 at 16:30 UT is:
S15W06 (Solar X = 098", Solar Y = -241")
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 two largest events in the past 24 hours were produced
by eruptive filaments. A C4.6 at 12/12/03:36 UT was associated
with an eruptive filament located southeast of NOAA 1912 and
the C3.4 event at 12/12/06:59 UT was associated with an eruptive
filament located south of NOAA 1918 and southeast of NOAA
1917. Target region NOAA 1916 is still classified as an
E-type/beta-gamma region. C-class events are possible before
1916 completes west limb passage.
The position of NOAA 1916 on December 12 at 12:30 UT is:
S12W85 (Solar X = 949", 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,
Solar activity is low. The largest event was a C2.3
at 12/10/20:07 produced by target region NOAA 1916.
1916 is mostly unchanged maintaining its E-type/beta-gamma
classification. C-class events possible with a slight chance
of an isolated M-class event in the next 24 hours.
The position of NOAA 1916 on December 11 at 16:30 UT is:
S12W74 (Solar X = 916", Solar Y = -200")
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 (NOAA regions 1920, N12E64 and 1921, N06E68)
have completed east limb passage without producing any
significant activity in the past 24 hours. Both regions have
simple H-type/alpha sunspot groups. The target of choice
will switch back to NOAA 1916. 1916 is maintaining a
E-type/beta-gamma classification. C-class events possible
with a chance of an isolated M-class event in the next 24
hour period.
The position of NOAA 1916 on December 10 at 12:30 UT is:
S13W58 (Solar X = 806", Solar Y = -216")
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 regions on the visible solar disk are mostly unchanged
and are producing only minor events. The target will switch
to a new region located in the area of old NOAA 1904. This
region was the source of a few occulted C-class events.
The largest was a C2.6 at 12/09/16:56 UT. Additional C-class
events expected with a slight chance of an isolated M-class
event in the next 24 hours.
The approximate position of the target on Dec. 09 at 13:30 UT is:
N09 E89 (Solar X = -962", Solar Y = 153")
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,
The level of solar activity is low. NOAA region 11909 has continued
to decay as it rotates up to the South West limb, decreasing in both
spot area and number of spots. NOAA 11909 has been flare quiet since
producing an M1.2 flare on 7-Dec-2013 at 07:17 UT. The most complex
region on disk is NOAA 11916 (a beta-gamma/D-type sunspot group) that
has also grown over the past 24 hours. C-class activity is probable
over the next 24 hours.
The position of NOAA 11916 on 8-Dec-2013 at 18:30 UT is:
S13W35, ( 549", -218" )
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-to-moderate level. NOAA region 11909 has
continued to decay, decreasing more in spot area and almost halving
in number of spots since the last message. This region has remained
classified by NOAA as a beta/D-type sunspot group, but produced the
largest event in the past 24 hours - an M1.2 flare on 7-Dec-2013 at
07:17 UT. Further C-class events are likely, with a small chance of
another low M-class event in the next 24 hours.
The position of NOAA 11909 on 7-Dec-2013 at 23:00 UT is:
S17W63, ( 828", -285" )
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. Yesterday's target region has
rotated further onto the visible solar disk and still shows no sign
of sunspots. NOAA region 11909 continues to decay and appears to be
fragmenting (having decreased in area and increased in spot number),
while decreasing in complexity to a beta/D-type sunspot group class.
This region produced two C-class events since yesterday's message,
including the largest flare of the period (a C6.7 flare on 5-Dec-2013
at 17:35 UT). Further C-class activity is likely in the next 24 hours.
The position of NOAA 11909 on 6-Dec-2013 at 15:00 UT is:
S17W42, ( 627", -287" )
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 11909 remains the largest, most
spotted and most complex active region on the visible disk. This region
is classified by NOAA as a beta-gamma/E-type sunspot group, but has only
produced a C1.1 flare (on 4-Dec-2013 at 22:18 UT) since the last message.
Yesterday's target region (the return of X-class productive NOAA 11893)
has rotated over the South East limb and produced several C-class events,
the largest being a C6.2 flare on 4-Dec-2013 at 20:14 UT. This region
appears to consist of spatially-extended strong magnetic flux, but no
spots are visible at this time. Further C-class activity is expected in
the following 24 hours.
The approximate position of this region on 5-Dec-2013 at 15:30 UT is:
S10E73, ( -917", -171" )
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)