24 October 2015
⇐20151023 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20151025⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E46S54
(-402",-816") 		E68-E48
(20) 		0.8 -0.7 -1.5e33
2 E66N39
(-686",574") 		E74-E65
(9) 		0.3 0.4 2.7e32
3 W27S72
(131",-939") 		W17-W28
(11) 		0.0 -1.0 -3.6e32
4 E32N19
(-491",238") 		E35-E30
(5) 		0.0 4.2 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 24-Oct-2015 23:35 UT .