4 December 2023
⇐20231203 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20231205⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W38S14
(579",-248") 		W17-W51
(34) 		4.8 -3.0 -2.8e21
2 E51S34
(-627",-550") 		E72-E34
(38) 		0.5 1.6 2.4e20

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-Dec-2023 20:30 UT .