12 July 2012
⇐20120711 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120713⇒

NOAA
5 Active Regions
11519
11520
11521
11522
11523

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E42N25
(-580",348") 		E48-E37
(11) 		0.4 -2.9 -5.9e32
2 E44S40
(-509",-637") 		E56-E34
(22) 		0.4 -0.5 -2.1e32

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 12-Jul-2012 23:00 UT .