8 July 2018
20180707 Week Rotation Today Rotation Week 20180709

NOAA
0 Active Regions

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E22S16
(-346",-312")
E38-W05
(43)
4.3 -0.1 -1.8e20
2 W14N67
(87",848")
E64-W84
(148)
3.2 0.8 4.0e21
3 E35N19
(-510",255")
E38-E31
(7)
0.2 -0.7 -4.6e19
4 E23S39
(-282",-637")
E26-E19
(7)
0.1 -1.2 -5.4e19
5 W24N47
(261",649")
W19-W30
(11)
0.1 -0.5 -2.2e19
6 E44S34
(-550",-559")
E47-E41
(6)
0.1 -1.0 -6.3e19
7 E38S07
(-583",-163")
E41-E36
(5)
0.1 -0.5 -1.5e19
8 E03S37
(-37",-622")
E05-W01
(6)
0.1 -1.0 -2.5e19
9 E30N28
(-414",399")
E32-E28
(4)
0.1 -0.8 -1.7e19

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-Jul-2018 23:10 UT .