1 April 2014
20140331 Week Rotation Today Rotation Week 20140402



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E35N34
(-455",614")
E71-E12
(59)
2.1 -2.5 -3.9e33
2 E46S56
(-388",-744")
E70-E24
(46)
0.9 -0.3 -3.4e32
3 E10N50
(-102",798")
E16-E02
(14)
0.3 0.3 1.0e32

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-Apr-2014 23:35 UT .