7 October 2015
⇐20151006 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20151008⇒

NOAA
2 Active Regions
12427
12429

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 E25N49
(-270",654") 		E75-W81
(156) 		16.6 1.0 9.5e33
2 W27N03
(429",-42") 		W07-W44
(37) 		5.5 2.7 4.1e33

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 7-Oct-2015 18:30 UT .