12 July 2023
⇐20230711 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230713⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W15N14
(233",166") 		E04-W30
(34) 		2.8 0.2 7.2e19
2 E35N38
(-423",543") 		E44-E24
(20) 		0.6 2.1 2.7e20
3 W37N22
(531",300") 		W33-W44
(11) 		0.3 -8.0 -5.0e20
4 W46N41
(514",577") 		W46-W47
(1) 		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 12-Jul-2023 23:30 UT .