27 October 2013
⇐20131026 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20131028⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E28N48
(-307",665") 		E42-E02
(40) 		1.7 0.4 4.9e32
2 W19N56
(175",752") 		W01-W35
(34) 		0.6 -0.4 -1.9e32
3 E22N28
(-325",382") 		E26-E17
(9) 		0.1 6.5 2.5e32
4 E40N37
(-501",526") 		E43-E39
(4) 		0.1 -1.6 -5.3e31

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 27-Oct-2013 22:05 UT .