23 March 2015
20150322 Week Rotation Today Rotation Week 20150324



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E47S66
(-289",-838")
E64-W82
(146)
3.1 -0.9 -5.5e33
2 W13S08
(223",-18")
W07-W21
(14)
0.8 7.9 1.3e33
3 W32S18
(487",-204")
W20-W40
(20)
0.7 3.5 8.3e32
4 W13S45
(159",-597")
W11-W16
(5)
0.1 -3.5 -8.1e31

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 23-Mar-2015 22:35 UT .