11 December 2013
20131210 Week Rotation Today Rotation Week 20131212



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E26N43
(-312",670")
E63-W14
(77)
10.2 -2.6 -1.7e34
2 W13N39
(175",624")
E01-W23
(24)
1.2 -0.8 -4.5e32
3 W35N22
(521",366")
W30-W39
(9)
0.1 2.8 1.7e32

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-Dec-2013 20:35 UT .