4 December 2015
⇐20151203 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20151205⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E05N41
(-64",639") 		E59-W76
(135) 		25.1 1.3 1.4e34
2 W22S73
(103",-935") 		E30-W56
(86) 		0.4 -0.9 -1.7e33

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 4-Dec-2015 21:35 UT .