29 March 2015
20150328 Week Rotation Today Rotation Week 20150330



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E12S60
(-101",-776")
E69-W78
(147)
8.1 -1.8 -1.2e34
2 E38N20
(-555",417")
E58-E20
(38)
5.0 7.2 2.0e34
3 W44N19
(627",396")
W39-W47
(8)
0.1 -2.4 -1.9e32
4 E21S16
(-329",-156")
E25-E17
(8)
0.1 3.7 7.8e31
5 E28S10
(-439",-69")
E30-E25
(5)
0.1 3.9 8.6e31

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-Mar-2015 23:35 UT .