2 October 2019
⇐20191001 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20191003⇒

NOAA
1 Active Region
12749

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 W05S00
(88",-115") 		E33-W33
(66) 		13.3 -0.1 -2.6e20
2 E01N68
(-4",839") 		E73-W82
(155) 		4.3 1.1 1.6e21
3 W37S19
(547",-399") 		W24-W47
(23) 		1.2 -0.7 -1.9e20
4 W30S34
(401",-619") 		W11-W40
(29) 		1.2 -0.4 -1.1e20
5 W11S66
(75",-916") 		E11-W33
(44) 		0.4 -1.3 -2.7e20
6 W39S60
(301",-870") 		W30-W46
(16) 		0.2 -0.7 -1.0e20
7 W36S04
(566",-160") 		W33-W41
(8) 		0.2 -0.6 -2.2e19
8 W05N46
(55",615") 		9
(3.6e03) 		1.0 4.6 1.7e20
9 W49S36
(586",-620") 		W43-W56
(13) 		0.1 -0.7 -2.4e19
10 W12S40
(154",-693") 		W05-W18
(13) 		0.1 -1.1 -2.5e19
11 W52S19
(718",-373") 		W51-W55
(4) 		0.0 -1.7 -2.4e19
12 E22N48
(-237",644") 		E25-E19
(6) 		0.0 -1.2 -1.0e19

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 2-Oct-2019 23:40 UT .