21 November 2015
⇐20151120 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20151122⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E41N47
(-442",687") 		E74-E30
(44) 		1.6 0.2 2.8e32
2 E43S52
(-409",-781") 		E71-E54
(17) 		1.5 -0.9 -2.3e33
3 E11N23
(-165",354") 		E18-W01
(19) 		0.6 6.0 9.1e32
4 W33S74
(148",-940") 		W08-W35
(27) 		0.1 -0.7 -7.1e32

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 21-Nov-2015 21:35 UT .