3 December 2017
⇐20171202 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171204⇒

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 W10N50
(111",741") 		E73-W38
(111) 		8.6 1.2 6.7e33
2 W02S21
(31",-361") 		E18-W18
(36) 		3.3 0.0 3.1e30
3 E15S71
(-80",-925") 		E45-W27
(72) 		0.6 -1.7 -3.4e33
4 W41N02
(639",28") 		W38-W43
(5) 		0.0 -0.5 -1.1e31
5 W27N41
(330",637") 		W24-W29
(5) 		0.0 -2.2 -5.6e31

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 3-Dec-2017 20:30 UT .