6 August 2019
⇐20190805 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190807⇒

NOAA
1 Active Region
12745

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E02S27
(-29",-520") 		E19-W19
(38) 		6.2 -0.6 -6.7e20
2 W03N67
(18",825") 		E70-W82
(152) 		4.8 1.5 2.2e21
3 E21S13
(-336",-303") 		E28-E13
(15) 		1.0 -0.8 -1.5e20
4 W20S66
(127",-901") 		E02-W25
(27) 		0.3 -0.7 -1.3e20
5 W64N19
(807",264") 		W58-W69
(11) 		0.3 1.2 1.3e20
6 E28S66
(-180",-897") 		E45-E12
(33) 		0.3 -1.3 -2.1e20
7 E19S40
(-235",-674") 		E23-E14
(9) 		0.2 -0.4 -1.5e19
8 E44S18
(-625",-367") 		E46-E41
(5) 		0.1 -1.3 -1.8e19
9 E35S16
(-522",-341") 		E37-E33
(4) 		0.0 -0.8 -7.6e18
10 W20N38
(258",505") 		W19-W21
(2) 		0.0 0.9 6.8e18

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 6-Aug-2019 23:30 UT .