16 May 2014
20140515 Week Rotation Today Rotation Week 20140517



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E30S53
(-286",-735")
E60-W04
(64)
3.9 -0.2 -8.6e32
2 W21N52
(210",768")
E19-W33
(52)
2.3 0.2 4.2e32
3 E34S28
(-469",-418")
E38-E29
(9)
0.1 -7.3 -3.4e32

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 16-May-2014 23:35 UT .