3 January 2015
⇐20150102 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150104⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W18S56
(171",-783") 		E42-W83
(125) 		8.4 -1.9 -1.4e34
2 E61N25
(-777",432") 		E72-E46
(26) 		1.0 1.1 1.8e33
3 E15S37
(-204",-540") 		E19-E11
(8) 		0.3 -3.6 -4.2e32

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 3-Jan-2015 22:35 UT .