21 March 2014
20140320 Week Rotation Today Rotation Week 20140322



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W12N47
(139",784")
E10-W26
(36)
1.8 0.0 7.8e31
2 E60S67
(-327",-856")
E68-E09
(59)
0.9 -0.2 -6.8e32
3 W15N03
(255",157")
W07-W24
(17)
0.8 5.3 9.7e32
4 W29N54
(271",835")
W26-W31
(5)
0.1 -0.5 -7.1e31

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 21-Mar-2014 20:35 UT .