4 November 2023
⇐20231103 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20231105⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E09S21
(-141",-404") 		E26-W14
(40) 		7.6 -4.6 -6.0e21
2 W29N65
(198",850") 		W03-W53
(50) 		0.8 -0.6 -1.7e20

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 4-Nov-2023 20:30 UT .