9 January 2016
20160108 Week Rotation Today Rotation Week 20160110



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W59N45
(586",716")
W37-W75
(38)
1.3 0.5 2.1e33
2 E17N22
(-267",418")
E32-E01
(31)
1.2 -4.2 -1.6e33
3 W10S52
(102",-731")
W07-W12
(5)
0.0 -2.2 -5.2e31

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 9-Jan-2016 21:35 UT .