16 August 2013
20130815 Week Rotation Today Rotation Week 20130817



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W27N31
(364",405")
E13-W48
(61)
6.5 -3.0 -7.1e33
2 E35N06
(-547",13")
E41-E29
(12)
1.1 4.0 1.6e33
3 W49N20
(675",262")
W47-W53
(6)
0.0 -1.9 -5.8e31

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-Aug-2013 12:50 UT .