14 May 2015
20150513 Week Rotation Today Rotation Week 20150515



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E19S12
(-299",-157")
E29-E01
(28)
2.5 12.3 7.4e33
2 W42S69
(224",-874")
E29-W74
(103)
1.8 -0.7 -4.0e33
3 W32N46
(357",706")
W26-W37
(11)
0.3 -0.8 -1.9e32
4 W19S35
(251",-506")
W17-W21
(4)
0.0 -5.2 -8.9e31

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 14-May-2015 23:35 UT .