20 September 2022
⇐20220919 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220921⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W23N12
(367",93") 		E09-W48
(57) 		7.5 0.6 7.6e20
2 E45S35
(-557",-607") 		E63-E30
(33) 		1.6 -3.3 -1.6e21
3 E25S17
(-380",-381") 		E28-E21
(7) 		0.2 -10.2 -3.3e20
4 W25N33
(341",433") 		W22-W27
(5) 		0.1 -1.4 -2.4e19

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 20-Sep-2022 23:30 UT .