15 May 2016
20160514 Week Rotation Today Rotation Week 20160516



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E21N43
(-256",672")
E62-W41
(103)
13.3 -0.6 -5.0e33
2 W20S70
(114",-876")
E68-W52
(120)
1.9 0.1 6.0e32
3 E40S12
(-601",-161")
E60-E26
(34)
1.3 2.9 1.7e33

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 15-May-2016 23:17 UT .