5 April 2014
20140404 Week Rotation Today Rotation Week 20140406



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E70S53
(-538",-744")
E78-E40
(38)
0.9 -0.3 -9.3e32
2 E27N50
(-280",793")
E51-E10
(41)
0.9 -0.7 -7.9e32
3 W15N46
(179",754")
W05-W21
(16)
0.5 -1.0 -4.4e32
4 E63N23
(-786",422")
E73-E49
(24)
0.4 1.2 9.8e32
5 E11N56
(-101",846")
E17-W01
(18)
0.3 0.9 4.1e32

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 5-Apr-2014 23:35 UT .