27 November 2023
⇐20231126 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20231128⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E61S17
(-816",-293") 		E69-E46
(23) 		2.0 -1.8 -1.2e21
2 W54N15
(765",239") 		W48-W62
(14) 		0.4 3.4 3.3e20

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 27-Nov-2023 20:30 UT .