27 September 2012
⇐20120926 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120928⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E06N51
(-63",670") 		E24-W17
(41) 		1.0 0.7 4.0e32
2 W08N70
(45",853") 		E19-W33
(52) 		0.7 -0.4 -3.6e32

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 27-Sep-2012 21:00 UT .