14 April 2018
⇐20180413 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180415⇒

NOAA
1 Active Region
12704

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 E30S23
(-436",-293") 		E55-W16
(71) 		11.0 -0.4 -1.5e33
2 W11S80
(33",-919") 		E80-W81
(161) 		0.6 -0.8 -1.9e33
3 W24S23
(361",-296") 		W22-W26
(4) 		0.1 -0.9 -2.7e31
4 W40S03
(622",26") 		5
(2.2e03) 		-1.2 8.1 1.7e32

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-Apr-2018 23:30 UT .