13 January 2023
⇐20230112 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230114⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E19N29
(-283",541") 		E24-E14
(10) 		0.4 4.2 3.4e20
2 E51S53
(-459",-745") 		E73-E33
(40) 		0.3 -1.0 -1.0e20
3 E32N39
(-401",664") 		E36-E29
(7) 		0.1 -0.4 -6.8e18

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 13-Jan-2023 20:30 UT .