Dear Collaborators,
Yesterday's target NOAA 12983 was the source of seven C-class
flares (the largest one being a C3.8 at 04/12/06:38 UT) and also a
few B-class events in the past 24 hours. 12983 has rotated beyond
the west limb. Today the target will switch to a newly numbered
region NOAA 12989. This region has an alpha/A-type configuration
but has produced a B-class flare. It seems to be emerging new
magnetic fluxes in its leading portion. B-class activities are expected
with a chance of some low C-class events in the following 24 hours.
The position of NOAA 12989 on April 13 at 03:30 UT is:
N19E71 (-856", 339")
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 (Purple Mountain Observatory)
Dear Collaborators,
Solar activity continues at a very low level. The largest event
in the past 24 hours was a C1.6 flare at 04/11/04:59 UT emergent
from a plage region (S14E06, just in the north of NOAA 12987).
Now there are two regions with sunspots on the visible disk,
NOAA 12983 and 12988, the latter of which is a newly emerged
region having a beta/B-type configuration. The target NOAA 12983
has decayed to an alpha/A-type region and produced four B-class
flares during the period. We will watch this region for a further 24
hours until it rotates over the west limb. B-class activities are
expected and some C-class flares are probable in the next 24 hours.
The position of NOAA 12983 on April 12 at 03:30 UT is:
N20W85 (895", 333")
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 (Purple Mountain Observatory)
Dear Collaborators,
Yesterday's target regions NOAA 12978/12981 were the source of
two ~B5 flares. Since both the regions have completed the west limb
passage, today the target will switch to NOAA 12983, the only region
with sunspots on the visible solar disk. 12983 produced a B4.0 flare
today and has a beta/D-type configuration. B-class activities are
expected with a chance of C-class flare in the next 24 hours.
The position of NOAA 12983 on April 11 at 03:30 UT is:
N21W75 (863", 365")
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 (Purple Mountain Observatory)
MM#009 Default Target
Dear Collaborators,
Target regions NOAA 2978/2981 have almost completed
west limb passage. The regions were the source of two
C-class events since the last message. 2978 produced
a C1.1 at 04/09/02:41 UT and 2981 produced a C4.9 at
04/10/02:41 UT. There is still a chance of another
C-class event before the regions rotate too far beyond
the southwestern limb.
The position of NOAA 2978/2981 on April 10 at 14:00 UT is:
S22W89 (Solar X = 888", Solar Y = -355")
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 Target
Dear Collaborators,
Target region NOAA 2978 (S19W83, C-type/beta)
is mostly unchanged and was quiescent since the
last message. Its companion region NOAA 2981
(S23W83, C-type/beta) was the source of a few
C-class events. The largest was a C4.7 at 04/09/11:24
UT. The flare was located in the southern portion
of 2978 and the northern portion of 2981 at S21W87.
The target position today will include both regions.
Another C-class event is possible in the next 24 hour
period.
The position of NOAA 2978/2981 on April 09 at 14:00 UT is:
S22W84 (Solar X = 884", Solar Y = -347")
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 Target
Dear Collaborators,
Target region NOAA 2978 (C-type/beta) has significantly
decayed, losing most of its intermediate and trailing sunspots.
2978 was the source of a C2.4 event at 04/08/15:14 UT.
Another C-class event is possible in the next 24 hours.
There is an EFR developing within the leading portion of
decaying NOAA 2983. The EFR produced a C1.0 event
at 04/08/11:21 UT.
The position of NOAA 2978 on April 08 at 14:00 UT is:
S19W70 (Solar X = 853", Solar Y = -278")
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 Target
Dear Collaborators,
Target region NOAA 2978 continues to decay along
with its companion region NOAA 2981 (S22W55). Both
regions were the source of minor B-class events since
the last message. A C-class event is still possible in
the next 24 hour period. A large filament located in the
southeastern quadrant (S35E10) became active/eruptive
and disappeared by 4/7/06:00 UT.
The position of NOAA 2978 on April 07 at 14:00 UT is:
S19W57 (Solar X = 762", Solar Y = -258")
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 Target
Dear Collaborators,
Target region NOAA 2978 (E-type/beta) is slowly
decaying especially within its intermediate and
trailing portions. 2978 was the source of a minor
C1.3 at 04/06/04:20 UT. NOAA 2981 located just
south of 2978 (S25W43, C-type/beta)) produced
a C1.3 event at 04/06/06:23 UT. 2981 is also decaying.
The largest event since the last message was a
C3.1 at 04/06/10:27 UT. The event was limb occulted
at N14 degrees. C-class events possible in the
next 24 hour period.
The position of NOAA 2978 on April 06 at 14:00 UT is:
S19W44 (Solar X =632", Solar Y = -240")
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 Target
Dear Collaborators,
The target NOAA 2975/2984 was the source of limb
occulted C-class activity since the last message. The
largest events were a C1.4 at 04/04/23:29 UT produced by
2975 and a C1.5 at 04/05/03:16 produced by 2984. The
target regions are now well beyond the northwestern limb.
The new target will be NOAA 2978. C-class events are
possible in the next 24 hour period.
The position of NOAA 2978 on April 05 at 14:00 UT is:
S18W30 (Solar X = 458", Solar Y = -209")
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 Target
Dear Collaborators,
The Major Flare Watch target region NOAA 2975 has
almost completed west limb passage. At this time we
will suspend the Major Flare Watch. NOAA regions
2975, 2976 and 2984 were the source of several C-class
events since the last message. The largest was a
C6.4 at 04/03/13:09 UT produced by 2976 (N17W74).
The target will continue to monitor the three northwestern
limb regions for the next 24 hour period. C-class activity
likely with an isolated M-class event still possible.
The position of NOAA 2975/2984 on April 04 at 14:00 UT is:
N15W88 (Solar X = 926", Solar Y = 250")
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)