25 December 2014
⇐20141224 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20141226⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E16S62
(-126",-849") 		E81-W65
(146) 		5.4 -0.5 -3.3e33
2 W05N47
(63",742") 		E50-W21
(71) 		4.9 0.9 2.8e33

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 25-Dec-2014 22:35 UT .