31 July 2016
⇐20160730 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160801⇒

NOAA
1 Active Region
12570

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 E39N36
(-482",501") 		E83-W11
(94) 		8.4 2.0 9.7e33
2 W02N74
(7",877") 		E27-W20
(47) 		0.7 -0.7 -1.1e33
3 E66N01
(-864",-22") 		E72-E61
(11) 		0.2 -1.2 -3.2e32
4 E64S07
(-842",-153") 		E69-E58
(11) 		0.1 -2.7 -3.0e32

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 31-Jul-2016 23:20 UT .