19 November 2014
20141118 Week Rotation Today Rotation Week 20141120



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W43N55
(373",781")
E20-W75
(95)
4.3 -0.0 -1.1e32
2 E33N54
(-312",766")
E51-E21
(30)
1.7 0.5 8.3e32

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 19-Nov-2014 22:35 UT .