27 December 2023
20231226 Week Rotation Today Rotation Week 20231228



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E31S18
(-481",-271")
E62-E08
(54)
4.6 -3.7 -3.2e21
2 E41N51
(-400",783")
E68-E14
(54)
1.6 -1.3 -7.6e20
3 E07N06
(-114",145")
E09-E04
(5)
0.1 -1.4 -1.9e19
4 E18N18
(-284",344")
E20-E15
(5)
0.1 -17.5 -1.6e20
5 E15N15
(-237",295")
E15-E13
(2)
0.0 -6.0 -3.6e19

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 27-Dec-2023 20:30 UT .