8 August 2012
⇐20120807 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120809⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E32S22
(-459",-439") 		E37-E22
(15) 		1.5 -2.1 -1.4e33
2 W23N58
(197",747") 		W20-W27
(7) 		0.1 -1.6 -8.0e31

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-Aug-2012 23:00 UT .