13 August 2020
⇐20200812 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200814⇒

NOAA
3 Active Regions
12770
12771
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 W04N69
(24",840") 		E70-W52
(122) 		4.0 1.3 1.7e21
2 E24S12
(-385",-285") 		E34-E04
(30) 		3.1 -0.1 -6.9e19
3 E09S57
(-85",-846") 		E52-W43
(95) 		2.3 -0.6 -5.1e20
4 W19N08
(298",31") 		29
(3.1e04) 		-0.0 3.1 9.5e20
5 W46N05
(685",4") 		W41-W54
(13) 		0.5 0.4 4.7e19
6 W17S42
(203",-712") 		W08-W24
(16) 		0.4 -0.6 -5.3e19
7 W06S37
(85",-651") 		E01-W10
(11) 		0.3 -0.7 -4.3e19
8 W05N40
(61",527") 		E01-W10
(11) 		0.2 -1.0 -4.6e19
9 W01S04
(23",-166") 		E03-W04
(7) 		0.2 1.8 6.1e19
10 W27N31
(370",402") 		W23-W31
(8) 		0.1 1.0 1.4e19
11 W54S01
(764",-81") 		W51-W56
(5) 		0.1 -0.4 -6.5e18
12 E45S43
(-482",-704") 		E48-E42
(6) 		0.1 -0.6 -1.4e19
13 E13S50
(-140",-793") 		E15-E11
(4) 		0.0 -0.9 -9.0e18

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 13-Aug-2020 19:00 UT .