22 July 2015
⇐20150721 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150723⇒

NOAA
2 Active Regions
12386
12387

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W20N51
(206",681") 		E28-W60
(88) 		6.7 0.9 4.0e33
2 E34S09
(-520",-216") 		E39-E28
(11) 		0.6 3.7 8.2e32
3 W26S68
(153",-901") 		W16-W43
(27) 		0.1 -0.8 -3.3e32

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-Jul-2015 23:35 UT .