21 July 2015
⇐20150720 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150722⇒

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 W05N58
(40",757") 		E41-W48
(89) 		4.2 0.6 1.8e33
2 E07N35
(-96",470") 		E31-W18
(49) 		2.6 1.9 1.5e33
3 E47S08
(-685",-192") 		E50-E44
(6) 		0.1 5.4 3.6e32

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 21-Jul-2015 23:35 UT .