13 April 2015
⇐20150412 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150414⇒

NOAA
5 Active Regions
12320
12321
12322
12323
12318

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E03S55
(-25",-728") 		E85-W31
(116) 		8.0 -1.9 -1.0e34
2 E19N44
(-220",724") 		E26-E08
(18) 		0.7 1.6 8.0e32
3 W19N46
(216",750") 		W14-W24
(10) 		0.1 -1.8 -2.2e32

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 13-Apr-2015 23:35 UT .