MMmotd August 2021

mmmotd@solar.physics.montana.edu

1 participants
31 discussions

MM#009 Default Target
by Max Millennium Chief Observer 21 Aug '21

21 Aug '21

Dear Collaborators, The level of solar activity is very low. The target region has rotated further on disk. Although the main leading polarity spot can be seen to be displaying a light bridge, this region remains too close to the limb for accurate classification. The target region has continued to produce B-class flares since the last message, the largest of which was a B4.9 on 21-Aug-2021 at 11:28 UT. Further B-class activity is expected in the following 24-hour period, with a chance for additional C-class flares. The approximate position of this region on 21-Aug-2021 at 22:00 UT is: N20E74 , ( -857", 292" ) 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)

1 0

MM#009 Default Target
by Max Millennium Chief Observer 20 Aug '21

20 Aug '21

Dear Collaborators, Solar activity is at a low level. Yesterday's target region has begun rotating over the North East limb with its main leading polarity spot coming into view. This region has produced multiple B-class and three C-class events since the last message, including the largest flare of the period (a C3.0 on 20-Aug-2021 at 15:50 UT), all of which are still footpoint occulted by the North East limb. Further C-class flares are expected over the next 24 hours. The approximate position of this region on 20-Aug-2021 at 22:00 UT is: N20E90 , ( -891", 322" ) 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)

1 0

MM#009 Default Target
by Max Millennium Chief Observer 19 Aug '21

19 Aug '21

Dear Collaborators, The level of solar activity is extremely low. Yesterday's target region has been designated as NOAA 12858 and was classified as a beta/C-type sunspot group, but only produced A-class activity. A region lies beyond the North East limb but its mid-to-high-lying loops are currently visible. This new region produced the largest flare since the last message (a B2.1 on 19-Aug-2021 at 15:49 UT), but this was clearly a footpoint occulted event. This new region becomes the target, and additional B-class flares are expected in the following 24-hour period. The approximate position of this region on 19-Aug-2021 at 21:30 UT is: N23E90 , ( -873", 368" ) 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)

1 0

MM#009 Default Target
by Max Millennium Chief Observer 18 Aug '21

18 Aug '21

Dear Collaborators, Solar activity is at an extremely low level. Target region NOAA 12857 has decayed in the past 24 hours becoming classified as a beta/B-type sunspot group at the start of the UT day but it has now lost its leading spots. A new flux region has emerged close to the central meridian since the last message. This new region has formed spots in both polarities with neither showing penumbrae (expected to be classed as a beta/B-type sunspot group), but it has already produced 2 B-class flares (including the largest event of the period, a B2.8 flare on 18-Aug-2021 at 19:58 UT). The new magnetic flux region becomes the target, with further B-class flares expected over the next 24 hours. The approximate position of this region on 18-Aug-2021 at 21:30 UT is: N13E01 , ( -15", 103" ) 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)

1 0

MM#009 Default Target
by Max Millennium Chief Observer 17 Aug '21

17 Aug '21

Dear Collaborators, The level of solar activity is extremely low. Target region NOAA 12857 developed penumbrae on leading and trailing spots to become classified as a beta/D-type sunspot group at the beginning of the UT day while it continued to produce A-class activity. However, since then NOAA 12857 has decayed slightly and no longer has any pores/spots present in its intermediate portion. B-class activity is probable over the following 24-hour period. The position of NOAA 12857 on 17-Aug-2021 at 20:00 UT is: N17W38 , ( 559", 192" ) 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)

1 0

MM#009 Default Target
by Max Millennium Chief Observer 16 Aug '21

16 Aug '21

Dear Collaborators, Solar activity is at a very low level. Target region NOAA 12853 has decayed further and has shown no signs of flaring activity since the last message. NOAA 12857 has the most substantial spots on the disk and is classified as a beta/B-type sunspot group at the start of the UT day, although it has consolidated some of its intermediate pores into a spot. NOAA 12857 has been the source of A-class activity and two B-class flares that were the largest magnitude events since the last message (a B3.4 flare and a B1.3 flare on 16-Aug-2021 at 07:05 UT and 09:15 UT, respectively). This region becomes the new target, with B-class activity expected in the next 24 hours. The position of NOAA 12857 on 16-Aug-2021 at 20:00 UT is: N18W25 , ( 381", 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)

1 0

MM#009 Default Target
by Max Millennium Chief Observer 15 Aug '21

15 Aug '21

MM#009 Default Target Dear Collaborators, Target region NOAA 2853 was unchanged with no noteworthy events during the past 24 hours. The filament located along the region's main magnetic inversion line continues to have phases of some activity. B-class events are possible with only a slight chance of an isolated C-class event in the next 24 hour period The position of NOAA 2853 on August 15 at 14:00 UT is: N25W23 (Solar X = 337", Solar Y =307") 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)

1 0

MM#009 Default Target
by Max Millennium Chief Observer 14 Aug '21

14 Aug '21

MM#009 Default Target Dear Collaborators, Target region NOAA 2853 was the source of an isolated C1.4 event at 08/13/21:08 UT. The filament located along the region's main magnetic inversion line continues to sometimes show an active phase. B-class events are possible with a slight chance of an isolated C-class event in the next 24 hour period. The position of NOAA 2853 on August 14 at 13:00 UT is: N25W10 (Solar X = 149", Solar Y =317") 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)

1 0

MM#009 Default Target
by Max Millennium Chief Observer 13 Aug '21

13 Aug '21

MM#009 Default Target Dear Collaborators, Target region NOAA 2853 was the source of a B1.2 event at 08/13/16:23 UT. 2853 has numerous tiny pores. The filament located along the region's main magnetic inversion line continues to show an activated phase. A- and B-class events are possible in the next 24 hour period. The position of NOAA 2853 on August 13 at 14:00 UT is: N25E04 (Solar X = -060", Solar Y = 301") 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)

1 0

MM#009 Default Target
by Max Millennium Chief Observer 12 Aug '21

12 Aug '21

MM#009 Default Target Dear Collaborators, The only spot on the visible solar disk today is a single A-type/alpha located at N13E51. The filament located along and south of the main magnetic inversion line in NOAA 2853 was active for several hours and the southern portion disappeared by 13:30 UT today. The filament may reappear in the same position after awhile. 2853 was the source of several minor A-type events and a B1.1 event at 08/12/04:40 UT. Minor A- and B-class events possible in the next 24 hour period. The position of NOAA 2853 on August 12 at 14:00 UT is: N25E17 (Solar X = -252", Solar Y = 306") 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)

1 0

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

MMmotd August 2021