18 January 2021
20210117 Week Rotation Today Rotation Week 20210119

Subject: MM#021 Parker Solar Probe P
Date: Sun, 17 Jan 2021 21:59:31 +0000

 
Dear Collaborators,
The level of solar activity remains extremely low. NOAA 12796 produced the only flare since the last message, a B2.8 event on 17-Jan-2021 at 13:18 UT. However, NOAA 12796 was classified as a beta/B-type sunspot group at the start of the UT day and has significantly decayed since then, having lost almost all spot coverage. Another spotted region is rotating over the South East limb, the return of the region previously designated as NOAA 12795. This currently unnumbered region produced two A-class flares during its limb transit (likely B-class due to footpoint occultation), but appears to have a simple beta magnetic configuration so there is no change in flaring activity expected in the following 24 hours. The Max Millennium Program continues supporting the coordination of observations for the 7th perihelion passage of PSP, where perihelion occurs today. The target will continue tracking the PSP model-consensus magnetic-footpoint that is now located in the South West quadrant after PSP's crossing of the Heliospheric Current Sheet early today.
The approximate position of this region on 17-Jan-2021 at 21:30 UT is:
S27W43 , ( 594", -387" )
NOTE: PSP is orbiting in the same direction as solar rotation, but at a faster rate.
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) Received on Sun Jan 17 2021 - 14:59:53 MST