1 October 2014
20140930 Week Rotation Today Rotation Week 20141002



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W10N56
(90",728")
E58-W51
(109)
10.2 0.2 1.5e33
2 W17S55
(159",-846")
E22-W32
(54)
2.5 -1.3 -5.1e33
3 W32S04
(502",-156")
W21-W38
(17)
0.4 -0.8 -9.9e31

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 1-Oct-2014 23:35 UT .