11 May 2025
⇐20250510 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20250512⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W54S36
(624",-532") 		W33-W71
(38) 		1.7 -2.0 -1.0e21
2 E63S30
(-739",-450") 		E82-E48
(34) 		1.2 2.4 1.1e21
3 W03S11
(45",-127") 		E04-W07
(11) 		0.4 -8.1 -5.3e20
4 W36N25
(502",439") 		W30-W41
(11) 		0.3 5.0 3.4e20
5 E13N10
(-218",217") 		E15-E12
(3) 		0.0 -1.9 -1.2e19

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 11-May-2025 23:30 UT .