25 July 2014
⇐20140724 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20140726⇒

NOAA
5 Active Regions
12119
12121
12122
12123
12120

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E04S52
(-44",-792") 		E37-W26
(63) 		2.7 -1.1 -2.9e33
2 W11S06
(184",-181") 		W01-W18
(17) 		1.5 -1.9 -5.9e32
3 W23N35
(307",480") 		W16-W31
(15) 		0.7 -0.7 -1.9e32

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 25-Jul-2014 23:35 UT .