7 May 2025
⇐20250506 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20250508⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W24S35
(318",-507") 		E21-W48
(69) 		6.9 -3.5 -4.5e21
2 E15N21
(-224",395") 		E30-W06
(36) 		1.6 2.3 6.3e20
3 W30N52
(291",782") 		W10-W41
(31) 		0.6 0.3 5.4e19
4 W51S53
(446",-738") 		W42-W59
(17) 		0.2 -0.3 -2.2e19
5 W27N43
(322",681") 		W25-W29
(4) 		0.0 -0.7 -8.5e18
6 W14S56
(124",-761") 		W12-W15
(3) 		0.0 -0.9 -1.1e19

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 7-May-2025 23:30 UT .