26 August 2014
20140825 Week Rotation Today Rotation Week 20140827



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E02N57
(-13",724")
E48-W41
(89)
4.4 0.1 4.2e32
2 E28S08
(-439",-230")
E41-E15
(26)
1.5 20.5 9.6e33
3 E57N52
(-490",707")
E59-E49
(10)
0.1 -1.0 -1.7e32
4 W43N49
(426",660")
W39-W50
(11)
0.0 -1.6 -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 26-Aug-2014 15:35 UT .