7 January 2014
⇐20140106 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20140108⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E31N46
(-349",738") 		E70-W45
(115) 		6.8 -1.1 -6.9e33
2 E40N06
(-621",144") 		E47-E33
(14) 		1.2 -7.2 -3.8e33

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 7-Jan-2014 20:35 UT .