7 June 2025
20250606 Week Rotation Today Rotation Week 20250608



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W45S34
(550",-533")
W07-W77
(70)
2.8 -2.7 -2.0e21
2 E09N13
(-152",206")
E14-E04
(10)
0.5 -6.4 -4.7e20
3 W35N31
(461",490")
W30-W38
(8)
0.1 4.0 1.0e20
4 E69S33
(-745",-511")
E81-E63
(18)
0.1 1.5 5.2e19

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 7-Jun-2025 23:30 UT .