14 December 2016
⇐20161213 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20161215⇒

NOAA
1 Active Region
12617

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 E42N30
(-564",498") 		E68-E18
(50) 		3.2 1.0 2.2e33
2 W10S16
(157",-259") 		W00-W16
(16) 		0.7 2.5 4.1e32
3 E15N72
(-78",931") 		E32-W54
(86) 		0.7 0.7 1.8e33
4 W24N04
(393",87") 		W18-W31
(13) 		0.6 1.2 2.0e32
5 W37S73
(175",-928") 		W12-W54
(42) 		0.4 -1.4 -2.5e33
6 W56S64
(351",-874") 		W43-W68
(25) 		0.2 -0.5 -3.7e32
7 E16S78
(-56",-950") 		E36-W06
(42) 		0.1 -1.2 -8.5e32

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 14-Dec-2016 20:30 UT .