4 July 2025
20250703 Week Rotation Today Rotation Week 20250705



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E05S38
(-65",-619")
E23-W25
(48)
3.0 -2.7 -1.6e21
2 W48S33
(587",-539")
W27-W61
(34)
2.2 -1.7 -1.1e21
3 E09S17
(-137",-319")
E13-E03
(10)
0.4 -8.9 -5.6e20
4 W42N43
(463",618")
W35-W51
(16)
0.3 -1.0 -7.4e19
5 E13N05
(-209",35")
E15-E10
(5)
0.3 -1.6 -6.9e19
6 W33S11
(510",-217")
W30-W36
(6)
0.2 -4.5 -1.3e20
7 E26S45
(-289",-705")
E30-E24
(6)
0.0 -4.4 -4.4e19

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 4-Jul-2025 07:30 UT .