18 November 2015
⇐20151117 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20151119⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W39N16
(584",238") 		W20-W56
(36) 		2.1 -5.7 -5.1e33
2 E53N25
(-702",394") 		E65-E42
(23) 		0.5 1.0 4.7e32
3 E21S71
(-118",-928") 		E52-W16
(68) 		0.4 -1.4 -2.5e33
4 W10N34
(143",511") 		W08-W12
(4) 		0.1 -3.2 -9.3e31

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-2015 21:35 UT .