12 August 2020
⇐20200811 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200813⇒

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 W11S10
(182",-270") 		E08-W22
(30) 		4.3 0.4 3.1e20
2 E13N69
(-75",843") 		E88-W78
(166) 		3.8 1.3 1.7e21
3 E21S54
(-196",-820") 		E42-W31
(73) 		2.5 -0.5 -3.9e20
4 W31N00
(492",-91") 		W15-W43
(28) 		2.2 -0.0 -1.1e19
5 W02S41
(19",-697") 		E03-W03
(6) 		0.2 -0.9 -4.9e19
6 W29S41
(347",-684") 		W23-W35
(12) 		0.1 -0.9 -2.1e19
7 W06N31
(91",390") 		W03-W08
(5) 		0.1 -1.4 -1.4e19
8 E22N11
(-348",83") 		E24-E20
(4) 		0.1 0.8 7.2e18
9 E19S04
(-307",-159") 		E20-E17
(3) 		0.0 -2.1 -1.3e19
10 W28S16
(426",-349") 		W26-W29
(3) 		0.0 -0.9 -6.2e18

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 12-Aug-2020 19:00 UT .