15 July 2025
20250714 Week Rotation Today Rotation Week 20250716



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W27S42
(320",-684")
E52-W69
(121)
13.8 1.7 5.8e21
2 E54S08
(-754",-166")
E59-E46
(13)
0.5 -3.6 -5.0e20
3 E60N21
(-767",304")
E72-E51
(21)
0.4 -2.4 -3.1e20
4 W19N51
(191",686")
W10-W23
(13)
0.1 1.2 2.9e19
5 W30S04
(472",-136")
W27-W33
(6)
0.1 -0.9 -1.3e19
6 W25S03
(397",-112")
W23-W28
(5)
0.1 0.8 9.9e18

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 15-Jul-2025 23:30 UT .