24 March 2023
⇐20230323 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230325⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W31S52
(307",-693") 		E76-W58
(134) 		7.4 -2.2 -4.0e21
2 E50S05
(-740",-1") 		E62-E40
(22) 		0.9 -0.6 -1.4e20

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 24-Mar-2023 20:30 UT .