3 April 2015
20150402 Week Rotation Today Rotation Week 20150404



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W34N39
(414",671")
E34-W45
(79)
6.3 4.0 2.1e34
2 W40S69
(227",-858")
E86-W81
(167)
2.9 -0.9 -5.2e33
3 E34N01
(-544",100")
E37-E31
(6)
0.1 -3.6 -9.3e31

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 3-Apr-2015 23:35 UT .