MM#009 Default HESSI Target
Dear RHESSI Collaborators,
Solar flare activity continues at a very low level. All regions
on the visible disk are currently in advanced decay phase.
Target region NOAA 1775 was able to produce minor events
since the last message. The largest was a C1.0 at
06/25/23:57 UT. No significant change in the level of
solar flare activity expected anytime soon.
The position of NOAA 1775 on June 26 at 13:00 UT is:
S26W65 (Solar Y = 769", Solar X = -428")
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 flare activity has returned to a very low level.
All regions on the visible solar disk are decaying.
NOAA 1778 has significantly decayed after it produced
the M2.9 and C9.9 events. The most active region in
the past 24 hours was NOAA 1775. 1775 is currently
classified as a C-type/beta-gamma region. It was the
source of two minor C-class events. We will switch
from 1778 to 1775 today. Another C-class event is possible.
The position of NOAA 1775 on June 25 at 13:00 UT is:
S26W53 (Solar X = 678", Solar Y = -434")
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,
Southeastern NOAA region 1778 was the source of an isolated
M2.9 event at 06/23/20:56 UT. It also produced a C9.9 event
at 06/24/11:32 UT. NOAA 1778 is currently classified as a
D-type/beta- gamma region with a possible small delta configuration
emerging in the southern portion of the leader sunspot. Another M-class
event is possible in the next 24 - 48 hours.
The position of NOAA 1778 on June 24 at 13:00 UT is:
S16E53 (Solar X = -726", Solar Y = -281")
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 remains low. Most of the NOAA numbered
regions on the solar disk showed marginal growth in spot area over
the previous 24 hours, but little sign of evolution. NOAA 11775 is
now classified by NOAA as a beta-gamma/D-type sunspot group, after
previously being a beta-delta/D-type sunspot group. The only flare
since yesterday's message was a C1.5 (on 22-Jun-2013 at 17:31 UT)
originating from NOAA region 11773. The target region will remain
the same as yesterday, although it is yet to rotate over the South
East limb. C-class activity is possible in the next 24 hours.
The approximate position of this region on 23-Jun-2013 at 13:00 UT is:
S27E90, ( -841", -428" )
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. Yesterday's target region NOAA 11777
has increased in spot area, is now classified as a beta/C-type sunspot
group, but has been quiet since producing the M2.9 flare on 21-Jun-2013
at 02:30 UT. A new region is located just over the South East limb and
was the source of a C2.1 flare on 21-Jun-2013 at 21:00 UT. This region
is the return of that previously numbered as NOAA 11762, which produced
several M-class events and achieved a maximum magnetic complexity of
beta-gamma-delta on its last disk passage. Further C-class events are
probable in the next 24 hours, with a small chance for an isolated low
M-class event.
The approximate position of this region on 22-Jun-2013 at 13:00 UT is:
S27E90, ( -841", -428" )
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. Yesterday's target region
has now been designated as NOAA 11777 with an alpha/H-type sunspot group
classification. This region appears to have a dominant negative-polarity
leading spot with one or two negative-polarity intermediate spots, and a
positive-polarity trailing plage (i.e., a reversed magnetic polarity for
the southern hemisphere). NOAA 11777 was the source of an M2.9 flare on
21-Jun-2013 at 02:30 UT. C-class activity is expected over the following
24 hours, with a chance for another low M-class event.
The position of NOAA 11777 on 21-Jun-2013 at 12:30 UT is:
S16E59, ( -780", -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,
Shaun Bloomfield (Trinity College Dublin)
Dear RHESSI Collaborators,
The level of solar activity remains low. NOAA region 11775 has decreased
slightly in spot area and number of spots and been reclassified by NOAA
to a beta-delta/D-type sunspot group. This region shows some signs spot
migration and flows between opposite polarities, but produced no flares
in the past 48 hours. Yesterday's target region behind the South East
limb is now rotating onto the visible disk, showing at least one large
mature sunspot. No estimate is made of its magnetic classification, due
to proximity to the limb. This region has continued to produce flares,
being the source of a C1.9 flare on 20-Jun-2013 at 09:13 UT. Further
C-class activity is probable, with a small chance for an isolated low
M-class event.
The approximate position of this region on 20-Jun-2013 at 12:00 UT is:
S15E85, ( -908", -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,
Shaun Bloomfield (Trinity College Dublin)
Dear RHESSI Collaborators,
Solar activity remains at a low level. Yesterday's target NOAA region 11775
has increased marginally in spot area and significantly in number of spots,
but has produced no further flares since yesterday's message. This region
is
now classified by NOAA as a beta/D-type sunspot group, but still shows
signs
of a delta spot in one of the main leading spots. The new region beyond the
South East limb has produced an additional two (partially occulted) C-class
flares, with the largest being a C8.4 on 19-Jun-2013 at 09:33 UT. The
target
changes to this region due to the increased magnitude and rate of flaring.
Further C-class activity is probable, with a small chance for a low M-class
event.
The approximate position of this region on 19-Jun-2013 at 10:30 UT is:
S13E90, ( -920", -212" )
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. The largest event in the past
24 hours was a C2.4 flare on 18-Jun-2013 at 00:40 UT, which origintated
from an active region located beyond the South East limb. This region
has no known flaring history, as it is not a returning NOAA region with
having emerged on the far-side of the Sun. NOAA 11775 has increased in
spot area and number of spots over the past 24 hours, while increasing
in complexity to a beta-delta/D-type sunspot group classification. This
region has continued to produce C-class events, including a C1.3 flare
on 18-Jun-2013 at 05:35 UT. Further C-class activity is probable in the
next 24 hours.
The position of NOAA 11775 on 18-Jun-2013 at 09:30 UT is:
S26E43, ( -579", -430" )
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. NOAA region 11775 is classified by
NOAA as a beta/D-type sunspot group, and has produced two C-class events
in the previous 24 hours (the largest being a C1.2 flare on 17-Jun-2013 at
02:53 UT). This region has continued to emerge new magnetic flux, resulting
in the formation of a second leading positive-polarity spot and additional
intermediate negative-polarity spots. Further C-class activity is probable
in the following 24 hours.
The position of NOAA 11775 on 17-Jun-2013 at 09:30 UT is:
S26E54, ( -687", -426" )
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)