7 December 2015
⇐20151206 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20151208⇒

NOAA
3 Active Regions
12462
12463
12464

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 W33N46
(366",705") 		E29-W62
(91) 		14.4 1.0 1.2e34
2 E14S15
(-222",-261") 		E25-W12
(37) 		3.4 4.9 3.9e33
3 W35N08
(549",131") 		W19-W48
(29) 		2.2 0.6 4.5e32

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 7-Dec-2015 21:35 UT .