19 May 2014
20140518 Week Rotation Today Rotation Week 20140520



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E01S53
(-11",-739")
E68-W34
(102)
5.9 -0.4 -1.8e33
2 E18N54
(-172",789")
E24-E01
(23)
0.5 0.3 1.7e32

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 19-May-2014 23:35 UT .