22 June 2025
⇐20250621 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20250623⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E25N14
(-384",201") 		E52-W05
(57) 		7.8 -3.8 -5.0e21
2 W54S45
(540",-678") 		W14-W75
(61) 		3.7 1.3 1.8e21
3 W19N05
(315",54") 		W16-W22
(6) 		0.3 -5.9 -2.9e20
4 W08S01
(137",-45") 		W04-W12
(8) 		0.3 -6.8 -2.7e20
5 E08N20
(-127",292") 		E10-E07
(3) 		0.1 -8.5 -8.0e19

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 22-Jun-2025 07:30 UT .