8 May 2025
⇐20250507 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20250509⇒

NOAA
4 Active Regions
14079
14081
14082
14083

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W34S34
(438",-501") 		E11-W60
(71) 		6.1 -3.3 -4.3e21
2 E14N33
(-193",567") 		E26-E00
(26) 		0.8 4.1 6.5e20
3 W11N20
(163",384") 		W05-W15
(10) 		0.4 4.4 3.1e20
4 W66S52
(534",-735") 		W55-W83
(28) 		0.1 -0.8 -2.7e19
5 W16S53
(163",-725") 		W13-W20
(7) 		0.1 -1.9 -2.7e19

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 8-May-2025 23:30 UT .