7 August 2013
⇐20130806 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130808⇒

NOAA
5 Active Regions
11806
11808
11809
11810
11811

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W40N67
(240",833") 		W17-W57
(40) 		0.4 0.4 3.5e32
2 E39S55
(-347",-814") 		E44-E30
(14) 		0.1 -0.3 -9.7e31

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-Aug-2013 21:00 UT .