14 December 2015
⇐20151213 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20151215⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W19N19
(302",324") 		E08-W33
(41) 		3.0 -5.5 -4.6e33
2 E21N31
(-297",518") 		E28-E14
(14) 		0.5 -3.3 -6.7e32

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 14-Dec-2015 21:35 UT .