13 August 2013
⇐20130812 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130814⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E28N31
(-381",399") 		E53-W31
(84) 		8.6 -3.4 -1.1e34
2 E15N60
(-122",765") 		E29-W09
(38) 		1.4 0.4 4.9e32

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 13-Aug-2013 21:00 UT .