22 April 2016
⇐20160421 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160423⇒

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 W15N32
(209",578") 		E21-W32
(53) 		8.4 2.3 8.3e33
2 W55S64
(343",-835") 		W56-W84
(28) 		0.4 -1.5 -1.7e33

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 22-Apr-2016 23:43 UT .