Dear Collaborators,
Solar activity has slightly increased since the last message. The largest
event during the period was a C5.7 flare at 23:24 UT yesterday, produced
by NOAA 14043 (N18W90) as it approaches the northwest limb. This
region also produced six low-C flares. The target region, NOAA 14048
(S16W09), retains a beta-gamma configuration with increases in both
spot area and number. It also produced a C4.8 flare and two additional
low C-class flares in the period. We will continue to observe NOAA 14048
due to its magnetic complexity and continued flux emergence in its
intermediate portion. Further C-class activity is expected, with a chance
of a low M-class flare in the next 24 hours.
The position of NOAA 14048 on 5-Apr-2025 at 11:30 UT is:
S16W09 (144",-163")
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,
De-Chao Song (Purple Mountain Observatory)
Dear Collaborators,
Solar activity continues at a very low level. The largest event since
the last message was a C4.4 flare from a newly emerged region
(S23W29). The most flare-productive region during the period was
NOAA 14043 (N14W77, beta/D-type). This region, approaching the
West limb, produced six low C-class flares. The target region NOAA
14048 (S16E07) retains a beta-gamma configuration and produced
only a C1.8 flare during the period. At this time, we are ending the
Major Flare Watch but continuing to watch NOAA 14048 as the target
region, due to its magnetic complexity and continued flux emergence.
Further C-class activity is expected over the next 24 hours, with a
slight chance for an isolated M-class event.
The position of NOAA 14048 on 4-Apr-2025 at 11:30 UT is:
S16E07 (-112",-162")
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,
De-Chao Song (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has declined to a low level since the last message.
The largest event during the period was a C3.4 flare at 09:09 UT
today produced by NOAA 14045 (S14W11, alpha/A-type). The
target region, NOAA 14048 (S16E20), also produced four low
C-class flares during this period, the largest one being a C2.5
flare today. It has been downgraded to a beta-gamma/F-type
region and is showing a slight decrease in dynamic sunspot
behavior. Today, the Major Flare Watch will be extended for the
final 24 hours for NOAA 14048, due to its relatively large sunspot
area (470 uh) and flare history. Low M-class activity is possible,
with a slight chance of an isolated >M5 flare in the next 24 hours.
The position of NOAA 14048 on 3-Apr-2025 at 11:30 UT is:
S16E20 (-316",-166")
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,
De-Chao Song (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has slightly decreased since the last message. The
largest event during the period was an M2.5 flare at 22:18 UT
yesterday, produced by the target region NOAA 14048 (S16E33).
This region retains a beta-gamma-delta configuration and produced
ten additional C-class flares, including a C8.1 flare at 10:39 UT
today. Given its magnetic complexity, ongoing flux emergence,
and activity history, we will continue to watch this region with a
Major Flare Watch campaign for the next 24 hours. Low M-class
activity is expected, with a chance of an isolated >M5 flare in the
next 24-48 hours.
The position of NOAA 14048 on 2-Apr-2025 at 11:30 UT is:
S16E33 (-504",-176")
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,
De-Chao Song (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has been at a high level since the last message.
The largest event in the period was an M5.6 flare at 06:37 UT
today, produced by NOAA 14046 (N05E24). This region retains
a beta-gamma configuration and produced another three C-class
flares. The target region NOAA 14048 (S16E46) has developed
into a beta-gamma-delta configuration with further increases in
both spot area and number. It remained the most flare-productive
region in the period, producing an M1.3 flare and over ten C-class
flares. The Major Flare Watch will remain effective with NOAA
14048 as the target region due to its magnetic complexity and
continued flux emergence in its intermediate portion. Further low
M-class flares are expected from the target region and also from
NOAA 14046, with a chance of an additional flare exceeding M5
in the next few days.
The position of NOAA 14048 on 1-Apr-2025 at 11:30 UT is:
S16E46 (-665",-190")
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,
De-Chao Song (Purple Mountain Observatory)