8 July 2025
20250707 Week Rotation Today Rotation Week 20250709



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E37S19
(-541",-347")
E79-W09
(88)
9.2 4.0 7.7e21
2 E23N33
(-310",469")
E27-E19
(8)
0.1 -1.8 -2.8e19
3 E14N28
(-197",387")
E17-E10
(7)
0.1 -0.9 -1.0e19
4 W54S46
(529",-706")
W50-W59
(9)
0.1 -0.8 -2.2e19

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 8-Jul-2025 23:30 UT .