6 February 2017
⇐20170205 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170207⇒

NOAA
3 Active Regions
12632
12634
12630

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 W31S66
(207",-846") 		E64-W72
(136) 		4.6 -1.3 -8.8e33
2 W09N01
(147",120") 		E18-W27
(45) 		4.2 0.5 4.0e32
3 E45N33
(-583",585") 		E52-E30
(22) 		1.0 0.7 7.0e32

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 6-Feb-2017 20:30 UT .