10 August 2020
⇐20200809 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200811⇒

NOAA
2 Active Regions
12770
12769

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 W11S14
(175",-327") 		E42-W42
(84) 		12.9 0.1 2.9e20
2 E23N70
(-125",852") 		E68-W85
(153) 		3.1 1.5 1.6e21
3 E23S65
(-157",-894") 		E51-W34
(85) 		1.0 -0.9 -4.5e20
4 E36S42
(-414",-691") 		E45-E30
(15) 		0.4 -0.7 -8.8e19
5 W26S57
(224",-841") 		W16-W31
(15) 		0.4 -0.8 -1.3e20
6 E19N14
(-303",127") 		E21-E17
(4) 		0.1 -1.3 -1.7e19
7 E40N20
(-571",246") 		E42-E37
(5) 		0.1 -0.8 -1.3e19
8 E07N49
(-75",643") 		E11-E03
(8) 		0.1 -0.5 -7.0e18
9 E22S16
(-343",-361") 		E23-E20
(3) 		0.0 -1.0 -7.1e18

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-Aug-2020 19:00 UT .