15 February 2025
20250214 Week Rotation Today Rotation Week 20250216



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W29S28
(416",-366")
W15-W45
(30)
2.1 -5.1 -2.0e21
2 E18N42
(-225",729")
E28-W07
(35)
1.0 2.2 5.3e20
3 W60S20
(787",-282")
W47-W80
(33)
0.8 -7.1 -1.8e21

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-Feb-2025 20:30 UT .