10 December 2013
20131209 Week Rotation Today Rotation Week 20131211



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E33N42
(-399",657")
E75-E02
(73)
9.1 -2.6 -1.7e34
2 W02N41
(27",646")
E06-W09
(15)
0.5 -1.3 -2.8e32
3 W12N67
(82",899")
W03-W19
(16)
0.2 -0.3 -9.6e31

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 10-Dec-2013 20:35 UT .