23 April 2022
⇐20220422 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220424⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E41S22
(-577",-307") 		E57-E26
(31) 		2.9 -2.1 -1.3e21
2 W47N05
(694",138") 		W33-W61
(28) 		0.8 0.5 9.2e19

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-Apr-2022 23:30 UT .