23 October 2023
⇐20231022 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20231024⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E51N12
(-730",148") 		E60-E43
(17) 		1.6 2.5 9.4e20
2 E52N36
(-612",523") 		E64-E36
(28) 		1.1 3.9 1.2e21
3 W53N47
(525",673") 		W40-W60
(20) 		0.2 -3.3 -1.7e20
4 W03S32
(46",-581") 		W00-W05
(5) 		0.0 -4.6 -4.1e19

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 23-Oct-2023 23:30 UT .