27 December 2014
⇐20141226 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20141228⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E07S62
(-55",-839") 		E80-W76
(156) 		6.2 -0.8 -5.2e33
2 W33N49
(342",763") 		E43-W47
(90) 		4.1 0.6 2.5e33
3 E44N52
(-419",784") 		E52-E17
(35) 		1.3 0.5 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 27-Dec-2014 22:35 UT .