25 December 2013
⇐20131224 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20131226⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W39N46
(429",721") 		E17-W77
(94) 		7.5 0.9 7.3e33
2 W07S17
(106",-253") 		W05-W08
(3) 		0.0 105.6 1.1e33

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-2013 20:35 UT .