18 November 2013
⇐20131117 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20131119⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W49N46
(508",684") 		W13-W72
(59) 		3.0 -1.1 -4.1e33
2 W66N23
(820",357") 		W60-W71
(11) 		0.1 -2.2 -4.1e32

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 18-Nov-2013 22:05 UT .