3 September 2012
⇐20120902 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120904⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E05S33
(-69",-613") 		E07-E02
(5) 		0.1 20.2 6.4e32
2 E30N34
(-397",450") 		E34-E27
(7) 		0.1 -1.0 -2.9e31

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-Sep-2012 21:00 UT .