21 July 2022
⇐20220720 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220722⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W34S28
(466",-501") 		W06-W52
(46) 		4.9 -1.5 -1.6e21
2 W36N35
(457",482") 		W14-W50
(36) 		2.2 -5.2 -2.4e21
3 E11S41
(-135",-676") 		E17-W02
(19) 		0.5 -1.8 -2.2e20

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 21-Jul-2022 23:30 UT .