2 January 2015
20150101 Week Rotation Today Rotation Week 20150103



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W06S57
(60",-787")
E50-W79
(129)
8.7 -1.9 -1.3e34
2 W38N50
(383",777")
W32-W45
(13)
1.0 0.5 6.9e32
3 E09N32
(-133",564")
E17-W01
(18)
0.9 -1.1 -3.7e32
4 E06N03
(-100",102")
E08-E04
(4)
0.1 -4.7 -5.0e31

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 2-Jan-2015 22:35 UT .