11 February 2012
⇐20120210 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120212⇒

NOAA
3 Active Regions
11415
11416
11417

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W28N02
(460",125") 		W24-W34
(10) 		0.4 -1.8 -2.1e32
2 W11S29
(161",-369") 		W04-W14
(10) 		0.2 -3.8 -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 11-Feb-2012 22:00 UT .