23 March 2025
⇐20250322 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20250324⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E17S43
(-205",-577") 		E59-W48
(107) 		22.3 2.4 1.0e22
2 E36N31
(-489",578") 		E56-E18
(38) 		2.5 1.6 9.5e20

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 23-Mar-2025 20:30 UT .