12 December 2016
⇐20161211 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20161213⇒

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 W41S68
(244",-898") 		E52-W75
(127) 		1.6 -1.0 -5.9e33
2 E05N03
(-88",65") 		E08-W02
(10) 		0.5 1.3 1.0e32
3 W71S41
(694",-637") 		W62-W81
(19) 		0.3 -1.1 -1.3e33

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-Dec-2016 20:30 UT .