21 November 2024
20241120 Week Rotation Today Rotation Week 20241122



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W16S16
(255",-297")
E05-W22
(27)
1.4 -13.4 -3.0e21
2 W41S09
(630",-170")
W38-W45
(7)
0.1 -6.9 -9.0e19
3 W15N58
(132",807")
W11-W19
(8)
0.0 -0.5 -5.3e18

Note: Solar Monitor's coronal hole segmentations are performed by CHIMERA, a copy of which is available at: github.com/TCDSolar/CHIMERA.

The operations of the CHIMERA algorithm is described in a peer reviewed paper: arxiv.org/abs/1711.11476.

An extensive copy of coronal hole properties are available at: solarmonitor.org/data.

The latest positions of the coronal holes are given in heliocentric co-ordinates, and the region positions are valid on 21-Nov-2024 12:30 UT .