18 February 2016
20160217 Week Rotation Today Rotation Week 20160219



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W26S55
(246",-735")
E71-W74
(145)
8.7 -2.1 -1.4e34
2 E33N38
(-421",672")
E71-E11
(60)
3.8 1.1 3.3e33
3 E50N22
(-688",427")
E54-E45
(9)
0.1 7.5 7.1e32

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 18-Feb-2016 19:30 UT .