26 December 2022
20221225 Week Rotation Today Rotation Week 20221227



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E12N32
(-171",557")
E27-W13
(40)
4.9 4.8 4.5e21
2 W21S59
(177",-822")
E52-W53
(105)
2.1 -1.0 -6.3e20
3 W16N15
(263",283")
W11-W20
(9)
0.3 1.7 8.8e19
4 -268
(-239",E14S02")
3
(1.0e03)
-4.6 2.1 2.1e19

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 26-Dec-2022 20:30 UT .