25 July 2013
⇐20130724 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130726⇒

NOAA
5 Active Regions
11793
11800
11801
11804
11805

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W31N10
(480",86") 		W21-W40
(19) 		2.0 5.3 3.4e33
2 W03S30
(48",-542") 		E04-W09
(13) 		0.3 6.8 8.5e32

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-2013 21:00 UT .