23 June 2023
20230622 Week Rotation Today Rotation Week 20230624



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W03N43
(36",619")
E06-W11
(17)
0.9 -2.4 -4.4e20
2 E52S41
(-568",-630")
E74-E35
(39)
0.6 2.5 5.6e20
3 W01N02
(15",-1")
E04-W06
(10)
0.4 -1.9 -1.1e20
4 E11N52
(-116",724")
E15-E09
(6)
0.1 -0.8 -1.2e19

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-Jun-2023 23:30 UT .