16 December 2023
⇐20231215 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20231217⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W06N16
(97",282") 		E21-W25
(46) 		4.5 2.0 1.4e21
2 E40S35
(-514",-548") 		E59-E14
(45) 		2.0 -3.1 -1.5e21

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 16-Dec-2023 20:30 UT .