22 April 2022
⇐20220421 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220423⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W35N03
(553",112") 		W22-W50
(28) 		1.3 1.0 2.4e20
2 E46S11
(-675",-127") 		E50-E40
(10) 		0.5 -1.2 -1.3e20
3 E60S24
(-757",-345") 		E61-E50
(11) 		0.3 -2.6 -2.3e20
4 W32S80
(91",-922") 		60
(8.1e03) 		-0.2 3.6 2.9e20

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 22-Apr-2022 23:30 UT .