19 January 2014
20140118 Week Rotation Today Rotation Week 20140120



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E13N38
(-171",669")
E49-W22
(71)
5.0 1.6 4.2e33
2 W01N02
(19",119")
E09-W09
(18)
0.7 1.1 1.3e32
3 W60S56
(469",-785")
W39-W78
(39)
0.4 -0.3 -3.2e32
4 W27S66
(178",-861")
W25-W33
(8)
0.0 -2.0 -1.2e32

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 19-Jan-2014 20:35 UT .