13 December 2015
⇐20151212 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20151214⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W01N18
(18",310") 		E23-W21
(44) 		3.2 -5.7 -4.1e33
2 E36N32
(-487",531") 		E41-E31
(10) 		0.2 -3.4 -4.0e32

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 13-Dec-2015 21:35 UT .