6 April 2025
⇐20250405 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20250407⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E26S32
(-364",-421") 		E61-W01
(62) 		3.5 -5.4 -3.5e21
2 W10S01
(171",77") 		W01-W16
(15) 		1.1 -9.3 -1.5e21
3 W36N24
(513",466") 		W31-W43
(12) 		1.0 -4.6 -9.7e20
4 E10S53
(-99",-702") 		E15-E01
(14) 		0.2 2.6 1.2e20
5 W13N66
(87",912") 		W03-W15
(12) 		0.2 -1.1 -8.8e19
6 W35S01
(549",75") 		W32-W38
(6) 		0.1 -3.4 -7.0e19
7 E05N53
(-51",828") 		E10-W02
(12) 		0.1 -0.3 -8.8e18
8 E17S48
(-193",-640") 		E19-E15
(4) 		0.0 0.5 4.2e18

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 6-Apr-2025 23:30 UT .