4 December 2014
⇐20141203 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20141205⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E10S52
(-108",-774") 		E46-W75
(121) 		9.3 -2.3 -1.6e34
2 E25N53
(-246",770") 		E46-W45
(91) 		3.9 -0.0 -1.7e32

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-2014 22:35 UT .