18 December 2023
⇐20231217 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20231219⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W33N14
(511",253") 		W04-W56
(52) 		4.3 1.4 1.1e21
2 E15S39
(-192",-596") 		E28-W15
(43) 		2.2 -3.5 -1.6e21

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 18-Dec-2023 20:30 UT .