29 December 2014
⇐20141228 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20141230⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E21S59
(-177",-814") 		E71-W82
(153) 		7.6 -0.9 -7.4e33
2 E11N52
(-118",792") 		E27-W30
(57) 		4.6 0.6 2.3e33
3 W39N53
(369",800") 		W26-W46
(20) 		0.5 0.5 3.8e32

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 29-Dec-2014 22:35 UT .