21 January 2014
⇐20140120 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20140122⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W19N42
(234",718") 		E54-W43
(97) 		5.3 1.1 3.8e33
2 E08N32
(-113",592") 		E14-W03
(17) 		0.4 1.0 1.7e32

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 21-Jan-2014 20:35 UT .