30 October 2016
⇐20161029 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20161031⇒

NOAA
1 Active Region
12604

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 W30N54
(282",742") 		E85-W82
(167) 		11.6 0.8 7.8e33
2 W43S14
(647",-284") 		W12-W73
(61) 		4.3 1.8 4.5e33
3 E38S28
(-527",-501") 		E56-E29
(27) 		0.7 -1.3 -5.7e32

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 30-Oct-2016 20:30 UT .