11 January 2015
20150110 Week Rotation Today Rotation Week 20150112



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W41N31
(552",541")
W22-W57
(35)
1.9 1.7 2.4e33
2 W61S70
(295",-902")
W29-W82
(53)
0.3 -0.2 -4.0e32
3 E01N51
(-9",802")
E03-W02
(5)
0.1 -0.5 -3.7e31

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 11-Jan-2015 22:35 UT .