8 January 2013
⇐20130107 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130109⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W28N31
(391",548") 		E05-W48
(53) 		2.9 -2.6 -3.8e33
2 E28S38
(-362",-551") 		E52-E02
(50) 		2.1 7.0 6.8e33
3 E33S76
(-130",-930") 		76
(1.5e05) 		1.1 8.2 1.3e34

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 8-Jan-2013 22:00 UT .