MM#009 Default HESSI Target
Dear RHESSI Collaborators,
The east limb target region is now rotating onto the visible disk.
After producing a series of C-class events yesterday, it has been
quiescent. The background x-ray flux is currently at a steady
B5 level. The region is still too close to the limb to ascertain
its magnetic configuration. C-class activity is possible with a
slight chance of an isolated M-class event in the next 24 hour period.
The approximate position of the target on October 18 at 13:00 UT is:
N07E85 (Solar X = -953", Solar Y = 109")
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 1589 produced two C-class events in the
past 24 hours. A new region located behind the northeastern
limb was the source of four occulted C-class events today.
The largest was a C7.4 at 10/17/07:57 UT. We'll switch from
1589 to the northeast limb today. Additional C-class events
probable with a chance of an isolated M-class event in the
next 24 hour period.
The approximate position of the target on October 17 at 08:00 UT is:
N05E89 (Solar X = -959", Solar Y = 082")
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 1589 is mostly unchanged maintaining a D-type/beta-gamma
sunspot group and bright plage. A C-class event is possible with a
slight chance of a minor M-class event in the next 24 hour period.
The position of NOAA 1589 on October 16 at 13:00 UT is:
N14W14 (Solar X = 226" Solar Y = 141")
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 1589 has decayed losing its delta configuration but
is still displaying mixed polarities and bright plage.
There is a chance of a C-class event and a slight chance
of a minor M-class event in the next 24 hour period.
The position of NOAA 1589 on October 15 at 13:00 UT is:
N13E01 (Solar X = -016, Solar Y = 120")
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 1589 developed a weak delta configuration and is
now classified E-type/beta-gamma-delta but only managed
to produce one C-class event since the last message.
A region located behind the northeastern limb at N13 was
the source of an occulted C4.8 event at 10/14/02:27 UT.
The target will continue to be 1589 for at least one more
24 hour period with a possible switch to the northeastern
limb region tomorrow. Both regions could produce C-class
events with a chance of an isolated M-class event as well in
the next 24 hours.
The position of NOAA 1589 on October 14 at 02:30 UT is:
N13E14 (Solar X = -227", Solar Y = 122")
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 1589 has increased its sunspot area and magnetic
complexity somewhat with penumbral growth within its
northern portion. Continued growth might result in a delta
configuration. 1589 is currently classified as a D-type/beta-gamma
region. C-class activity probable with an isolated M-class
event possible in the next 24 hour period.
The position of NOAA 1589 on October 13 at 13:00 UT is:
N13E26 (Solar X = -412", Solar Y = 128")
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 1589 is mostly unchanged maintaining its D-type
sunspot group with weak polarity mixing. It was the source
of a few C-class events in the past 24 hours. The largest
was a C9.0 at 10/12/8:20 UT. C-class activity probable with
an isolated M-class event possible in the next 24 hour period.
The position of NOAA1589 on October 12 at 13:00 UT is:
N12E41 (Solar X = -618", Solar Y = 124")
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 southeastern limb region that was the source of the
recent M-class events has now rotated onto the visible disk.
It has a disappointing C-type/beta sunspot group with a few
small sunspots. NOAA 1589 is mostly unchanged maintaining
its D-type group with weak polarity mixing.
C-class events possible with a chance of an isolated M-class event
in the next 24 hour period.
The position of NOAA 1589 on October 11 at 13:00 UT is:
N13E53 (Solar X = -749", Solar Y = 155")
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 1589, has rotated onto
the visible disk as a D-type/beta region. It has been significantly
quiescent since the M2.3 event on 10/08/11:17 UT. A new region
located mostly behind the southeastern limb was the source of
a few occulted C-class events and two occulted M-class events.
The largest was an M1.7 at 10/09/23:27 UT. We'll switch targets
to the new SE limb region today. C-class events and an isolated
M-class event is possible in the next 24 hour period.
The approximate position of the target on October 10 at 14:00 UT is:
S28E86 (Solar X = -847", Solar Y = -455")
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 northeastern limb region has now rotated partially onto
the visible disk. It is still too close to the limb to ascertain its
magnetic configuration but the region has large leading sunspots
and bright plage. This region was the source of C-class events as
was a region located beyond the southeast limb at approximately
S27. Both regions appear capable of producing an M-class
event in the next 24 hour period.
The position of the target on October 09 at 13:00 UT is:
N14E86 (Solar X = -931", Solar Y = 224")
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)