17 December 2015
⇐20151216 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20151218⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E57S47
(-555",-711") 		E62-E55
(7) 		1.4 -1.2 -3.3e33
2 W42N25
(591",426") 		W36-W50
(14) 		0.2 -8.5 -1.3e33

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 17-Dec-2015 21:35 UT .