8 August 2025
20250807 Week Rotation Today Rotation Week 20250809



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E22S32
(-308",-576")
E56-W40
(96)
12.6 2.6 6.9e21
2 E19N30
(-274",385")
E26-E11
(15)
1.6 4.1 1.2e21
3 W08N16
(123",153")
E07-W17
(24)
1.4 11.3 2.5e21
4 E17N12
(-278",103")
E22-E13
(9)
0.3 14.1 6.5e20
5 W16S05
(253",-184")
W14-W17
(3)
0.1 2.6 2.5e19

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-Aug-2025 07:30 UT .