1 January 2013
⇐20121231 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130102⇒

NOAA
6 Active Regions
11636
11638
11639
11640
11641
11642

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E41N01
(-641",55") 		9
(1.0e04) 		-8.4 5.6 5.9e32
2 E62N26
(-779",442") 		E73-E54
(19) 		0.1 -5.6 -1.5e33
3 W03N46
(36",744") 		W00-W05
(5) 		0.0 2.7 6.2e31

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 1-Jan-2013 22:00 UT .