23 December 2014
⇐20141222 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20141224⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E18S63
(-140",-854") 		E80-W44
(124) 		4.5 -0.6 -3.6e33
2 E26N43
(-314",687") 		E58-E08
(50) 		4.1 1.0 2.7e33

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 23-Dec-2014 22:35 UT .