14 August 2019
⇐20190813 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190815⇒

NOAA
1 Active Region
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 W05N68
(33",835") 		E63-W90
(153) 		3.7 1.2 1.4e21
2 E35S50
(-354",-777") 		E49-W17
(66) 		2.9 -0.6 -5.9e20
3 E12S33
(-164",-597") 		E21-W01
(22) 		1.4 -0.5 -1.6e20
4 E35N12
(-536",105") 		E38-E33
(5) 		0.1 -0.6 -1.3e19
5 E19S25
(-274",-492") 		E21-E15
(6) 		0.1 -0.7 -7.7e18

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 14-Aug-2019 23:30 UT .