4 January 2013
20130103 Week Rotation Today Rotation Week 20130105



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E35N29
(-487",511")
E57-E05
(52)
2.3 -4.0 -5.0e33
2 W06N03
(106",109")
E05-W15
(20)
1.2 -10.5 -2.3e33
3 W55N45
(568",710")
W57-W61
(4)
0.1 -0.9 -2.4e32
4 W02N13
(26",273")
3
(9.0e02)
-1.7 5.6 5.1e31

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 4-Jan-2013 22:00 UT .