10 July 2020
20200709 Week Rotation Today Rotation Week 20200711

NOAA
1 Active Region

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E10S03
(-162",-116")
E47-W31
(78)
11.6 -0.2 -3.0e20
2 E00N59
(-2",775")
E61-W27
(88)
4.8 0.9 1.2e21
3 E03S71
(-14",-909")
E30-W37
(67)
0.4 -0.9 -2.1e20
4 E23S48
(-252",-735")
E27-E21
(6)
0.4 -0.4 -4.2e19
5 E45S63
(-305",-857")
E65-E38
(27)
0.2 -0.4 -4.8e19
6 E17S29
(-241",-507")
E19-E15
(4)
0.0 -0.9 -8.3e18
7 W26N14
(396",178")
W24-W27
(3)
0.0 -1.1 -7.7e18

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 10-Jul-2020 19:00 UT .