9 January 2024
⇐20240108 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20240110⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W40S62
(288",-840") 		W20-W62
(42) 		0.5 0.4 7.7e19
2 W55S34
(668",-507") 		W44-W68
(24) 		0.3 2.3 2.0e20

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 9-Jan-2024 20:30 UT .