25 August 2013
20130824 Week Rotation Today Rotation Week 20130826



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E35N34
(-452",443")
E59-E17
(42)
2.7 2.1 2.6e33
2 E30S09
(-472",-241")
E41-E14
(27)
2.3 2.2 1.7e33
3 W36N13
(547",121")
W24-W43
(19)
1.5 -0.8 -4.6e32
4 E06S04
(-102",-184")
E12-W03
(15)
0.5 -1.0 -9.8e31
5 W40N43
(445",574")
W36-W48
(12)
0.2 -1.6 -2.5e32
6 W19N46
(218",605")
W12-W27
(15)
0.2 -1.3 -1.3e32
7 E45N52
(-414",696")
E47-E43
(4)
0.1 -3.1 -1.7e32

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 25-Aug-2013 21:00 UT .