23 July 2024
20240722 Week Rotation Today Rotation Week 20240724



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W08N23
(121",286")
W05-W11
(6)
0.1 13.7 2.9e20
2 W08N48
(84",639")
W03-W11
(8)
0.1 -0.7 -1.8e19
3 -24
(859",W00N71")
11
(1.7e03)
-0.7 2.7 4.6e19

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 23-Jul-2024 23:30 UT .