29 January 2014
20140128 Week Rotation Today Rotation Week 20140130



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E11N47
(-129",780")
E39-W28
(67)
4.6 0.5 1.8e33
2 W30N48
(320",783")
W26-W33
(7)
0.1 -0.9 -1.0e32
3 E03S17
(-54",-184")
E04-E01
(3)
0.0 -17.6 -1.4e32

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 29-Jan-2014 20:35 UT .