11 July 2012
⇐20120710 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120712⇒

NOAA
4 Active Regions
11518
11519
11520
11521

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W33S31
(439",-531") 		W26-W39
(13) 		0.2 11.7 1.1e33
2 E56N23
(-719",340") 		E61-E52
(9) 		0.2 -3.9 -6.1e32

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 11-Jul-2012 23:00 UT .