23 April 2016
⇐20160422 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160424⇒

NOAA
3 Active Regions
12532
12533
12531

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 W29N38
(369",640") 		E06-W42
(48) 		6.2 1.3 5.3e33
2 W24S15
(372",-172") 		W11-W35
(24) 		1.3 5.7 2.0e33
3 E66N18
(-829",328") 		E68-E62
(6) 		0.0 -2.4 -2.0e32

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 23-Apr-2016 23:43 UT .