Dear Collaborators,
The level of solar activity is extremely low. An unspotted plage
region has rotated over the South East limb while the visible disk
remains devoid of spots. No significant X-ray flares have occurred
since the last message and no change in flare activity is expected
in the next 24-hour period. The Max Millennium Program continues to
support coordination of observations during the Parker Solar Probe
(PSP) 8th perihelion passage. The target stays on the Eastern edge
of the Northern hemisphere coronal hole that is the model-consensus
magnetic-footpoint location which PSP is co-rotating with.
The approximate position of this region on 3-May-2021 at 19:00 UT is:
N12W60 , ( 807", 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,
Shaun Bloomfield (Northumbria University)
Dear Collaborators,
Solar activity is at an extremely low level. NOAA region 12820 has
now rotated over South West limb while NOAA 12818 decayed to plage
before also rotating over the same limb. No flares have occurred
since the last message and no change in flare activity is expected
over the following 24 hours. The Max Millennium Program continues
supporting the 8th perihelion passage of Parker Solar Probe (PSP)
by the target remaining as the model-consensus magnetic-footpoint
location of PSP, the Eastern edge of the Northern hemisphere low-
latitude coronal hole.
The approximate position of this region on 2-May-2021 at 18:00 UT is:
N11W48 , ( 696", 225" )
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 (Northumbria University)
Dear Collaborators,
The level of solar activity is extremely low. NOAA 12821 has now
rotated over South West limb while NOAA 12818 and 12820 will also
soon rotate over the same limb. NOAA 12820 was the only region to
produce a flare, a single B1.7 on 1-May-2021 at 19:50 UT. There is
no change in flaring activity expected in the next 24-hour period.
The Max Millennium Program continues supporting the Parker Solar
Probe (PSP) 8th perihelion passage by choosing to target the PSP
model-consensus magnetic-footpoint location. PSP has undergone a
heliospheric current sheet crossing since the last message so the
target now changes to the Eastern edge of the Northern hemisphere
low-latitude coronal hole.
The approximate position of this region on 1-May-2021 at 22:00 UT is:
N11W37 , ( 564", 235" )
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 (Northumbria University)
Dear Collaborators,
Solar activity is at a very low level. NOAA regions 12818, 12820 and
12821 have all continued to decay since the last message. Both NOAA
12820 and 12821 have produced flare activity since the last message,
but no increase in flare activity is expected over the following 24
hours. The Max Millennium Program will continue to support the 8th
perihelion passage of Parker Solar Probe (PSP). The model-consensus
magnetic-footpoint location of PSP that is our target remains on the
edge of the coronal hole that is close to disk centre.
The approximate position of this region on 30-Apr-2021 at 21:00 UT is:
S16W07 , ( 112", -196" )
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 (Northumbria University)
Dear Collaborators,
The level of solar activity is extremely low. The visible solar disk
continues to have 3 spotted NOAA regions (12818, 12820, 12821) which
are all in decay phase. NOAA 12820 was the only region that produced
any activity since the last message (a B1.1 flare on 29-Apr-2021 at
13:51 UT) and no change in flaring activity is expected in the next
24-hour period. The Max Millennium Program continues to support the
Parker Solar Probe (PSP) 8th perihelion passage. The target will be
the PSP model-consensus magnetic-footpoint location that has changed
from yesterday's pointing at the edge of the southern polar coronal
hole to a different coronal hole located close to the disk centre.
The approximate position of this region on 29-Apr-2021 at 18:00 UT is:
S17E19 , ( -298", -214" )
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 (Northumbria University)
Dear Collaborators,
Solar activity remains at a very low level. The target region NOAA 12821
and nearby slightly larger region NOAA 12820 have both decayed somewhat
since the last message. 12820 produced a few low-B-class flares, and no
change in flare activity is expected in the following 24 hours. At this
point the Max Millennium target changes to support the coordination of
observations for the 8th perihelion passage of Parker Solar Probe (PSP
encounter 8). The target is the expected magnetic-footpoint location of
PSP that is currently estimated as being the edge of the Southern polar
coronal hole close to the South East limb.
The approximate position of this region on 28-Apr-2021 at 21:00 UT is:
S55E85 , ( -543", -774" )
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 (Northumbria University)
Dear Collaborators,
The level of solar activity is very low. Target region NOAA 12821 has
grown marginally in extent, number of spots and spot area and is now
classified as a beta/D-type sunspot group, while close-by NOAA 12820
has grown in extent to be classified as a beta/E-type sunspot group.
Both of these regions have produced several B-class flares since the
last message, with NOAA 12821 producing the largest of the period (a
B3.3 flare on 27-Apr-2021 at 16:04 UT). NOAA 12821 becomes the target
region for the next 24 hours, but observers are encouraged to include
the leading portion of NOAA 12820 in their field-of-view if possible.
Further B-class activity is expected in the next 24-hour period, with
a good chance for a C-class flare.
The position of NOAA 12821 on 27-Apr-2021 at 20:00 UT is:
S21W39 , ( 561", -287" )
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 (Northumbria University)
Dear Collaborators,
Solar activity is at a low level. The target region NOAA 12820 has generally
maintained spot area since the last message while developing small spots in
its interior. This region continues to be classified as a beta/D-type sunspot
group. The bipolar flux region located slightly to the West of 12820 has now
been designated as NOAA 12821 (a beta/C-type sunspot group). NOAA 12820 has
continued to produce multiple B-class events since the last message, but the
largest flare in the period was a C2.6 event on 26-Apr-2021 at 01:17 UT from
decaying NOAA 12816. The target remains as NOAA 12820 for the next 24 hours,
but observers are encouraged to include the trailing portion of 12821 in the
field-of-view if at all possible (because the trailing spot of NOAA 12821 is
moving towards the opposite polarity leading spot of NOAA 12820). Continued
B-class activity is expected in the following 24 hours, with a good chance
for a C-class flare.
The position of NOAA 12820 on 26-Apr-2021 at 22:00 UT is:
S22W18 , ( -274", -290" )
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 (Northumbria University)
Dear Collaborators,
The newly emerged region near NOAA 12818 has been designated as
NOAA 12820 with a beta/D-type configuration. 12820 has produced 10
B-class flares since the last message, the largest one being a B6.9 at
04/24/16:45 UT. If possible, please include both regions in your field of
view. Note that the largest X-ray event of the period was a C2.6 at 04/25/
01:17 UT, produced by NOAA 12816 (S24W53) that has entered its decay
phase. Further C-class activities are expected with a slight chance of an
isolated M-class event in the next few days.
The position of NOAA 12820 on April 25 at 15:30 UT is:
S22W01 (15", -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,
Ying Li (Purple Mountain Observatory)
Dear Collaborators,
Yesterday's target region NOAA 12817 has rotated over the west limb.
Today the target will switch to NOAA 12818. 12818 produced a C2.5
flare at 04/23/23:08 UT and also a B3.2 flare. Please note that there n
ewly emerged some sunspots in its leading portion (or at the west of its
old leading polarity). Additional C-class activities are expected in the
next 24 hours.
The position of NOAA 12817 on April 24 at 07:30 UT is:
S17E21 (-328", -207")
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)