Dear Collaborators,
Solar activity has been at a very low level with the soft X-ray flux
flat at ~B3. In the past 24 hours there was only a B2.8 flare produced
by a newly emerged region, as numbered as NOAA 12990 (N16E45).
12990 has a beta/B-type sunspot group and is located close to the
target NOAA 12989. If possible, please also include 12990 in your
field of view. 12989 has been classified as a beta/B-type configuration.
B-class activities are expected with some chance of a C-class flare
in the next 24 hours.
The position of NOAA 12989 on April 14 at 03:30 UT is:
N18E58 (-772", 342")
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 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)