30 November 2016
⇐20161129 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20161201⇒

NOAA
4 Active Regions
12612
12614
12615
12613

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 W27N63
(199",861") 		E63-W81
(144) 		3.6 0.8 4.5e33
2 E16S13
(-255",-240") 		E21-E10
(11) 		0.3 0.9 6.4e31
3 E47N25
(-644",406") 		E52-E43
(9) 		0.1 -0.9 -4.7e31
4 E56S53
(-485",-784") 		E62-E52
(10) 		0.1 -0.7 -1.2e32

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-Nov-2016 20:30 UT .