5 May 2012
⇐20120504 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120506⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E27N06
(-437",160") 		E48-E07
(41) 		6.2 -4.0 -7.5e33
2 W38S68
(220",-861") 		W21-W40
(19) 		0.4 0.9 8.1e32

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 5-May-2012 23:00 UT .