5 January 2013
⇐20130104 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130106⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E27N30
(-388",539") 		E44-W09
(53) 		3.1 -3.5 -5.1e33
2 W24N01
(403",64") 		W11-W38
(27) 		1.8 -1.8 -8.4e32
3 W16N44
(198",715") 		W11-W19
(8) 		0.2 -0.7 -6.9e31

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-Jan-2013 22:00 UT .