15 April 2023
⇐20230414 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230416⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E57S49
(-534",-681") 		E85-E27
(58) 		1.0 -0.9 -3.0e20
2 W61S44
(599",-631") 		W49-W75
(26) 		0.4 1.3 1.8e20
3 E13S50
(-136",-671") 		E15-E10
(5) 		0.0 -2.6 -2.2e19

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 15-Apr-2023 23:30 UT .