4 July 2022
⇐20220703 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220705⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W19N24
(282",343") 		E14-W40
(54) 		3.3 2.2 1.3e21
2 W01N72
(4",877") 		E73-W57
(130) 		1.2 1.1 5.6e20
3 W30N03
(477",1") 		W27-W33
(6) 		0.1 1.3 2.1e19
4 E17N19
(-267",259") 		E20-E14
(6) 		0.1 1.4 1.7e19

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 4-Jul-2022 23:30 UT .