28 March 2015
20150327 Week Rotation Today Rotation Week 20150329



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E20S59
(-170",-766")
E72-W86
(158)
8.2 -1.9 -1.3e34
2 E50N19
(-693",381")
E73-E37
(36)
2.5 4.8 1.0e34
3 W30N19
(450",408")
W24-W33
(9)
0.2 -3.9 -3.9e32
4 W18N22
(280",457")
W15-W22
(7)
0.1 -2.6 -1.3e32
5 W26N42
(318",716")
W23-W30
(7)
0.1 -1.6 -8.8e31

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 28-Mar-2015 22:35 UT .