11 August 2019
⇐20190810 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190812⇒

NOAA
2 Active Regions
12746
12747

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 E06S15
(-94",-352") 		E44-W33
(77) 		7.6 -0.1 -1.8e20
2 E04N66
(-26",817") 		E78-W78
(156) 		4.6 1.2 1.7e21
3 E32S61
(-249",-865") 		E55-E22
(33) 		0.6 -0.6 -1.9e20
4 W47N10
(678",93") 		W41-W52
(11) 		0.2 0.6 3.3e19
5 W51S11
(726",-252") 		W47-W57
(10) 		0.1 -1.4 -5.2e19
6 E24S45
(-270",-730") 		E26-E18
(8) 		0.1 -0.9 -3.0e19
7 W32S64
(216",-888") 		W23-W47
(24) 		0.1 -1.4 -9.0e19
8 W30N02
(472",-57") 		W26-W34
(8) 		0.1 -1.1 -1.8e19
9 W19S69
(114",-913") 		W15-W28
(13) 		0.1 -1.3 -4.9e19
10 W62S28
(742",-481") 		W57-W67
(10) 		0.1 -2.5 -6.3e19
11 E29N37
(-371",486") 		E31-E27
(4) 		0.0 0.6 6.2e18
12 E30N23
(-433",286") 		E32-E27
(5) 		0.0 -1.0 -6.9e18

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 11-Aug-2019 23:30 UT .