27 September 2014
20140926 Week Rotation Today Rotation Week 20140928



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E07N58
(-60",748")
E59-W62
(121)
8.7 0.2 1.3e33
2 E42S55
(-366",-828")
E66-E23
(43)
1.2 -1.1 -3.7e33
3 W52S06
(750",-175")
W38-W66
(28)
0.5 10.0 3.9e33

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 27-Sep-2014 23:35 UT .