17 April 2014
⇐20140416 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20140418⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W01N48
(8",772") 		E31-W38
(69) 		3.7 0.5 1.5e33
2 E58S60
(-404",-801") 		E66-E43
(23) 		0.6 -0.4 -6.4e32
3 W34S50
(348",-680") 		W29-W42
(13) 		0.2 -2.1 -2.9e32

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 17-Apr-2014 23:35 UT .