MM#009 Default HESSI Target
Dear RHESSI Collaborators,
NOAA 2157 was the source of numerous C-class events
in the past 24 hours. The largest was a C6.7 at 09/05/0654 UT.
2157 is a large E-type/beta-gamma sunspot group with a possible
magnetic delta configuration. C-class events expected with the
chance of an isolated M-class event in the next 24 hours.
There is also a slight chance of an event =/>M5.
The position of NOAA 2157 on September 05 at 11:00 UT is:
S13E61 (Solar X = -812", -269")
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 2157 has rotated
over the southeastern limb but is still too close to the
limb to ascertain its magnetic configuration. It has bright H-alpha
plage and appears to have mixed polarities. This region
was the source of the long-duration limb occulted M2.5 event
yesterday and one of the farside major flares on September 1st.
The source region that produced another farside major flare
on September 1st is now rotating over the northeastern limb
at N15 degrees. NOAA 2157 has the potential to produce another
M-class event with even the chance of an M=/>M5 in the next
24 hour period. We will also closely monitor the limb passage
of the large active region in the northeast.
The position of NOAA 2157 0n September 04 at 10:30 UT is:
S14E81 (Solar X = -913", Solar Y = -247")
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 2152 is mostly unchanged. The target
will switch to the southeastern limb to an active region that
was the source of a long-duration limb occulted M2.5 event
at 09/03/13:53 UT. A large leader sunspot has rotated over
the limb at S19 degrees. C- and M-class events probable
with even a chance of an event =/>M5 in the next 24 hours.
The approximate position of the target on Sept. 03 at 13:45 UT is:
S19E88 (Solar X = -898", Solar Y = -313")
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 will switch from NOAA 2149 to NOAA 2152 today.
2152 has added significant new flux within its intermediate
portion. It is currently classified as a E-type/beta-gamma
region. C-class events probable with the chance of an
isolated M-class event in the next 24 hour period.
Noteworthy solar activity since the last message:
There were two additional major solar flares yesterday
produced by regions beyond the eastern limb and the
old quiescent 42 degree filament centered at approximately
N20W15 slowly ascended and disappeared a few hours ago today.
The position of NOAA 2152 on September 02 at 11:00 UT is:
S16W05 (Solar X = 079", Solar Y = -375")
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 2149 produced a few C-class events in the past 24
hours. 2149 is mostly unchanged with mixed polarities
and bright H-alpha plage. C-class events probable in the
next 24 hour period. Note: A region located a few days beyond
the east limb was the source of what appears to be a major
flare beginning at 09/01/11:05 UT. The flare was associated
with a bright CME.
The position of NOAA 2149 on September 01at 13:30 UT is:
N09W71 (Solar X = 888", 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,
NOAA 2149 continues to slowly decay but is maintaining
mixed polarities and bright H-alpha plage. 2149 is producing
C-class events. The largest since the last message was a
long-duration C7.1 at 08/31/11:00 UT. NOAA 2152, S17E21,
has grown significantly in the past few days and was also
the source of C-class events in the past 24 hours. Both
target region 2149 and 2152 have the potential to produce
C-class events with a slight chance of an isolated M-class
in the next 24 hour period.
The position of NOAA 2149 on August 31 at 11:00 UT is:
N09W57 (Solar X = 788", Solar Y = 083")
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 2149 slowly added new small spots in the past
24 hours. Its magnetic classification is currently
beta-gamma. 2149 was the source of C-class events
since the last message. Additional C-class activity probable
in the next 24 hour period.
The position of NOAA 2149 on August 30 at 03:00 UT is:
N09W36 (Solar X = 553", Solar Y = 053")
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 2146 is now located just beyond the
northwestern limb. 2146 was the source of a limb occulted
C4.3 event at 08/29/15:52. This event was associated with
a flare spray and an eruptive prominence. 2146 has completed
west limb passage. The new target region will be NOAA 2149.
2149 has an EFR located adjacent (south) of the large round
leader sunspot. C-class events possible in the next 24 hours.
The position of NOAA 2149 on August 29 at 17:00 UT is:
N10W31 (Solar X = 483", Solar Y = 064")
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 2146 is in decay phase but is maintaining its
magnetically complex beta-delta configuration.
C-class activity probable with the chance of an isolated
M-class event before 2146 completes west limb passage.
The position of NOAA 2146 on August 28 at 11:00 UT is:
N07W79 (Solar X = 925", Solar Y = 092")
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 2146 has lost penumbral area but is
retaining its beta-delta magnetic configuration. C-class
events probable and an isolated M-class event possible
with a slight chance of an event =/>M5 in the next 24 hour period.
The position of NOAA 2146 0n August 27 at 11:00 UT is:
N07W65 (Solar X = 855", Solar Y = 065")
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)