4 August 2012
⇐20120803 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120805⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E40N14
(-585",154") 		E44-E35
(9) 		0.2 -1.7 -1.3e32
2 W06N70
(34",852") 		W01-W12
(11) 		0.0 -3.6 -2.0e32

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 4-Aug-2012 23:00 UT .