15 December 2014
⇐20141214 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20141216⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W47N48
(471",735") 		E19-W65
(84) 		5.5 0.5 4.2e33
2 W19S01
(316",-7") 		W09-W29
(20) 		1.0 8.2 1.9e33
3 E15N55
(-148",804") 		E17-E09
(8) 		0.1 -0.3 -2.9e31

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 15-Dec-2014 22:35 UT .