Dear RHESSI Collaborators,
The largest event since the last message was a C7.7
at 15:26 UT on September 2 produced by the northwestern
limb region NOAA 12672 (N04W90). This flare was associated
with a non-Earth-directed CME. The target region NOAA 12674
produced a B8.5 as well as a C1.0 flares in the past 24 hours.
12674 retains its beta-gamma/F-type magnetic classification,
increasing in sunspot area (now 810 uh) and number of spots.
Further high B- and low C-class flares are expected with a
chance of an isolated high C-class event.
The position of NOAA 12674 on September 3 at 07:30 UT is:
N14E21 (-332", 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,
Ying Li (Nanjing University / Montana State University)
Dear RHESSI Collaborators,
The largest event in the past 24 hours was a C2.0 at 15:31 UT
on September 1 produced by the target region NOAA 12674.
12674 also produced a C1.2 and a few B-class flares. 12674 has
been designated as a beta-gamma/F-type magnetic configuration,
increasing in number of spots. More B- and C-class activities are
expected in the next 24 hour period.
The position of NOAA 12674 on September 2 at 07:30 UT is:
N13E34 (-519", 116")
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,
Ying Li (Nanjing University / Montana State University)
Dear RHESSI Collaborators,
Solar activity has been at low levels for the past 24 hours.
There are four active regions with sunspots on the visible
disk currently. The most active region, i.e., the target region
NOAA 12674, has a beta/E-type magnetic configuration.
12674 produced two B3.1 events (the largest ones of the
period) on August 31. 12674 continues to show dynamic
surges visible in H-alpha images. B- and C-class activities
are possible in the next 24 hours.
The position of NOAA 12674 on September 1 at 07:30 UT is:
N13E49 (-700", 136")
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,
Ying Li (Nanjing University / Montana State University)
Dear RHESSI Collaborators,
The largest event since the last message was a C5.2
at 18:38 UT on August 30 produced by the target region
NOAA 12674. 12674 was also the source of a C1.3 and
a few high B-class events. 12674 has been designated
as a beta/E-type magnetic classification, increasing in
sunspot area and number of spots. More B- and C-class
flares are expected in the following 24 hours.
The position of NOAA 12674 on August 31 at 07:30 UT is:
N14E60 (-800", 170")
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,
Ying Li (Nanjing University / Montana State University)
Dear RHESSI Collaborators,
Yesterday's target region has been designated as NOAA 12674,
which has a beta/D-type magnetic configuration. 12674 produced
numerous B-class as well as three low C-class flares (the largest
being two C1.3) in the past 24 hours. It appears to be in a growth
phase. Additional B- and C-class activities are expected in the next
24-hour period.
The position of NOAA 12674 on August 30 at 07:30 UT is:
N11E66 (-853", 132")
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,
Ying Li (Nanjing University / Montana State University)
Dear RHESSI Collaborators,
Solar activity has increased since the last message. A new
region (unnumbered yet) near the northeastern limb is rotating
onto the visible disk. It produced numerous high B-class events
as well as three low C-class flares (the largest being a C2.8 at
02:55 UT on August 29) in the past 24 hours. Today we will
switch the target to this new region. Further B- and C-class limb
events are expected in the next 24 hours.
The approximate position of the target on August 29 at 07:30 UT is:
N15E88 (-890", 280")
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,
Ying Li (Nanjing University / Montana State University)
Dear RHESSI Collaborators,
Solar activity has been at a very low level. The largest event
since the last message was a B3.5 at 17:46 UT on August 27
produced by a region beyond the southeastern limb. The target
region NOAA 12671 has been flare quiet. It is almost rotating
over the western limb with overlying loops visible. We will watch
this region for a final 24 hour period. NOAA 12672 (N07W24)
produced a B1.6 at 00:53 UT on August 28 and continues to decay.
Low level activities are expected in the next 24 hours.
The position of NOAA 12671 on August 28 at 07:30 UT is:
N13W91 (924", 213")
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,
Ying Li (Nanjing University / Montana State University)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
The activated dark filament in target region NOAA 2672
(N07W15, E-type/beta) mentioned in the message
yesterday became destabilized and erupted around
20:45 UT and was associated with a weak double ribbon
flare and a B5.4 event at 08/26/21:00 UT. The largest event
since the last message was a limb occulted C6.3 at
08/27/15:16 UT produced by NOAA 2671 located on the
northwestern limb. 2672 continues in decay phase. The
target will switch to 2671. Another C-class limb event is
possible in the next 24 hours.
The position of NOAA 2671 on August 27 at 13:30 UT is:
N14W91 (Solar X = 920", Solar Y = 229")
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 2672 (N07W02, E-type/beta-gamma)
and NOAA 2671 (N13W77, F-type/beta-gamma) produced
minor B-class events since the last message. 2672 continues
to decay and 2671 is displaying new small negative polarity
spots emerging just west of the main positive polarity trailing
sunspot. 2672 has a well-defined somewhat active dark
filament located along its magnetic inversion line.
2672 and 2671 are expected to be the source of B-class
events with another C-class event possible in the next 24 hours.
The position of NOAA 2672 on August 26 at 15:00 UT is:
N07W02 (Solar X = 033", Solar Y = -001")
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 2672 (N07E13, E-type/beta-gamma)
and NOAA 2671 (N11W64, E-type/beta-gamma) are slowly
decaying. Both regions produced minor B-class events and
2672 was the source of an isolated C5.5 event at 08/25/07:27.
Both regions have the potential to produce B-class activity
and another C-class event is possible in the next 24 hours.
The position of NOAA 2672 on August 25 at 13:40 UT is:
N07E13 (Solar X = -212", Solar Y = 002")
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)