9 August 2012
20120808 Week Rotation Today Rotation Week 20120810



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E25N20
(-373",234")
E35-E14
(21)
0.5 -3.9 -5.4e32
2 E21S31
(-294",-574")
E30-E13
(17)
0.4 -5.9 -1.1e33
3 E45N29
(-583",398")
E49-E39
(10)
0.2 -1.1 -1.5e32
4 E14S23
(-213",-463")
E16-E12
(4)
0.1 -9.0 -2.2e32

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-Aug-2012 23:00 UT .