24 September 2014
20140923 Week Rotation Today Rotation Week 20140925



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E49N54
(-424",720")
E69-E11
(58)
3.6 0.4 1.9e33
2 W09S09
(142",-256")
E13-W22
(35)
2.2 15.7 7.5e33
3 W23N57
(207",735")
E08-W34
(42)
1.8 -0.2 -3.2e32
4 W50N30
(636",410")
W43-W59
(16)
0.3 1.3 3.2e32

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 24-Sep-2014 23:35 UT .