8 May 2015
20150507 Week Rotation Today Rotation Week 20150509



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E21S32
(-283",-459")
E37-E02
(35)
3.0 -3.7 -4.0e33
2 E23S68
(-139",-862")
E79-W68
(147)
2.7 -1.3 -6.5e33
3 W45N57
(366",820")
W27-W71
(44)
0.7 0.4 8.8e32
4 E11S12
(-181",-147")
E15-E07
(8)
0.1 -4.2 -9.8e31

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 8-May-2015 23:35 UT .