Dear RHESSI Collaborators,
The current level of solar activity is low. Yesterday's target
(NOAA 11884) has not produced significant activity since
the previous message. Furthermore the region has continued
to decay and only shows weak evidence for a gamma magnetic
configuration. A new region, designated as NOAA 11887, is
emerging near N20E10, but currently exhibits a beta magnetic
configuration. On the other hand, NOAA 11890 exhibits the
largest spot area (660 uhemi) and the most complex spot
configuration (beta-gamma/Ehc). Also, the region appears to be
the most active in X-rays. High C-class activity is possible, with
a chance for an isolated low M-class event.
The position of NOAA on 4-Nov-2013 at 16:45 UT is:
S10E53, ( -760", -208" )
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,
Paul Higgins (Trinity College Dublin/LMSAL)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
Target region NOAA 1884 was the source of two M-class
events in the past 24 hours - M1.6 at 11/02/22:21 UT and
an M4.9 at 11/03/05:22 UT. 1884 is classified as an
E-type/beta-gamma-delta region. The magnetic delta configuration
is currently weakening but the region continues to have
the potential to produce another M-class event in the next 24 hour
period. NOAA 1890, S09E66, is a large E-type/beta-gamma
region that is also capable of producing an M-class event.
1890 was the source of a C9.9 event at 11/03/16:28 UT.
1884 will remain the target region for at least another 24 hours.
The position of NOAA 1884 on November 03 at 14:00 UT is:
S12W21 (Solar X = 340", Solar Y = -264)
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 1884 was the source of an impulsive
M6.3 major event at 11/01/19:53 UT. 1884 is maintaining
its E-type/beta-gamma-delta sunspot group. C-class events
are certain with an excellent chance of another isolated
M-class event in the next 24 hour period.
The position of NOAA 1884 on November 02 at 14:00 UT is:
S13W09 (Solar X = 147", Solar Y = -226")
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 1884 was the source of several C-class events in the
past 24 hours. The largest was a C6.2 at 11/01/00:09 UT.
1884 is maintaining an E-type/ beta-gamma sunspot group
with a weak magnetic delta configuration. Additional C-class
events expected with the chance of an isolated M-class event
in the next 24 hours.
The position of NOAA 1884 on November 01 at 14:00 UT is:
S12E04 (Solar X = -066", Solar Y = -272")
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 1884 was the source of a C1.0 event at 10/31/06:51 UT.
The largest x-ray event in the past 24 hours was a M1.9
at 10/31/13:51 UT - its source region was NOAA 1877 now
located just beyond the southwestern limb at S10.
1884 is maintaining an E-type/beta-gamma-delta sunspot group.
The delta configuration appears to be weakening. C-class events
probable with the chance of an isolated M-class event in the next
24 hours.
The position of NOAA 1884 on October 31 at 14:00 UT is:
S11E16 (Solar X = -262", Solar Y = -255")
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 been at a low level since the X2
event produced by default target region NOAA 1875 yesterday.
The background x-ray flux is currently flat at the B5 level.
1875 has completed west limb passage. The new target
is NOAA 1884. 1884 is currently classified as an E-type
region with a beta-gamma-delta magnetic configuration.
C-class events are possible with the chance of an isolated
M-class event in the next 24 hours.
The position of NOAA 1884 on October 30 at 20:30 UT is:
S13E26 (Solar X = -414", Solar Y = -284")
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 current solar activity level is high. Today's target region
(NOAA 11875) has just released a limb-occulted X2.3 flare
on 29-oct-2013 at 21:54 UT. A major flare watch is now in
effect. A further >M5 flares are likely and a further X-class
flare is possible.
The position of NOAA 11875 on at UT is:
N06W89 (Solar X = 960", Solar Y = 099")
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,
Paul Higgins (Trinity College Dublin/LMSAL)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
Solar flare activity is currently at a moderate level.
The most active region was NOAA 1875 now located on the
northwestern limb. 1875 was the source of numerous
C-class events and an M1.5 at 10/28/20:57 UT. Target region
NOAA 1882 (S08E10) is now in decay phase displaying a much weaker magnetic
delta. We will switch to NOAA 1875 today. NOAA 1877 (S12E67) has emerging
flux and will likely be chosen
for the target region tomorrow. 1875, 1877, and 1882 are capable
of producing C-class events with the chance of an isolated
M-class event in the next 24 hour period.
The position of NOAA 1875 on October 29 at 18:00 UT is:
N06W89 (Solar X = 960", Solar Y = 099")
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#003 Major Flare Watch
Dear RHESSI Collaborators,
Solar flare activity continues at a high level. NOAA 1875
(N07W74) was the most active region in the past 24 hours
producing 2 major flares (X1 event at 10/28/02:03 UT and
an M5.1 event at 10/28/04:41 UT). 1875 very rapidly developed
a strong delta configuration located in the large, leading
penumbra late UT yesterday. The delta appears to have
decayed somewhat following the X- and M- events.
Target region NOAA 1882 was the source of 2 M-class
events today. The largest was an M4.4 at 10/28/15:15 UT.
1882 is currently in growth phase adding sunspot area and count
in its trailing portion where a strong delta configuration is located.
The Major Flare Watch will continue today with 1882 as its target
region. Both 1882 and 1875 have the potential to produce a
major flare =/>M5 with a chance of an X-class event as well in the
next 24 hours.
The position of NOAA 1882 on October 28 at 16:30 UT is:
S08E24 (Solar X = -390", Solar Y = -206")
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 is at a moderate level. NOAA regions 11875 and 11882
continue to be the most magnetically complex regions on the visible
solar disk, both showing a beta-gamma-delta magnetic classification.
NOAA 11875 has maintained area and number of spots and continues to
produce C-class flares. NOAA 11882 has grown in area and number of
spots, but has decreased in flare productivity over the previous 24
hours (despite containing the strongest delta spot). At this stage
we are ceasing the MM#018 Great Flare Watch to reinstate the MM#003
Major Flare Watch on NOAA 11882 for at least the next 24 hours, as
this region retains the potential for a >M5 flare.
The position of NOAA 11882 on 27-Oct-2013 at 22:00 UT:
S08E35, ( -548", -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,
Shaun Bloomfield (Trinity College Dublin)