26 September 2014
20140925 Week Rotation Today Rotation Week 20140927



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E18N57
(-166",736")
E63-W53
(116)
8.5 0.2 1.5e33
2 W41S08
(621",-215")
W29-W53
(24)
1.0 11.5 5.6e33
3 W19S03
(312",-162")
W15-W24
(9)
0.2 6.9 3.6e32
4 W26S03
(419",-150")
W25-W28
(3)
0.0 31.8 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 26-Sep-2014 23:35 UT .