12 January 2019
⇐20190111 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190113⇒

NOAA
0 Active Regions

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 W02S48
(20",-674") 		123
(7.0e05) 		-0.5 5.6 4.0e22
2 W28N62
(218",888") 		E22-W47
(69) 		1.8 1.0 4.5e21
3 W38S08
(599",-74") 		W33-W45
(12) 		0.4 -0.7 -1.1e20
4 W20N26
(301",490") 		W15-W24
(9) 		0.1 -0.6 -2.8e19
5 W49S05
(732",-34") 		W45-W52
(7) 		0.1 -0.6 -2.9e19

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-Jan-2019 20:30 UT .