26 June 2025
20250625 Week Rotation Today Rotation Week 20250627



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E51S29
(-649",-472")
E72-E27
(45)
2.8 -1.8 -1.4e21
2 W39N22
(548",324")
W19-W53
(34)
2.2 -4.2 -1.9e21
3 W56S08
(778",-147")
W48-W66
(18)
0.8 -3.1 -6.8e20
4 W15N10
(244",129")
W14-W16
(2)
0.1 -3.3 -6.3e19
5 E25N40
(-309",578")
E27-E23
(4)
0.1 -2.6 -6.6e19
6 W03N46
(34",651")
E02-W06
(8)
0.1 1.6 3.7e19
7 W33N43
(376",619")
W29-W37
(8)
0.1 2.3 3.0e19

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-Jun-2025 23:30 UT .