18 October 2013
20131017 Week Rotation Today Rotation Week 20131019



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W18N40
(225",555")
E12-W51
(63)
4.3 -2.5 -4.2e33
2 E32S56
(-283",-844")
E55-E11
(44)
0.6 -0.4 -5.6e32
3 E13N04
(-214",-26")
E19-E05
(14)
0.4 -1.7 -1.5e32
4 E25S34
(-330",-615")
E28-E20
(8)
0.2 -2.8 -2.5e32
5 E30N47
(-331",644")
E38-E23
(15)
0.1 -1.2 -8.7e31

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 18-Oct-2013 23:35 UT .