20 June 2014
⇐20140619 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20140621⇒

NOAA
7 Active Regions
12087
12089
12090
12092
12093
12094
12095

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W38S54
(342",-778") 		W02-W58
(56) 		1.3 -0.4 -7.9e32
2 E29N16
(-436",246") 		E35-E22
(13) 		0.4 -7.6 -1.0e33

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 20-Jun-2014 23:35 UT .