11 July 2013
⇐20130710 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130712⇒

NOAA
3 Active Regions
11785
11787
11789

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W21S48
(223",-745") 		W12-W30
(18) 		0.8 -0.6 -4.1e32
2 E73N27
(-801",412") 		E84-E60
(24) 		0.2 -0.9 -7.0e32

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 11-Jul-2013 21:00 UT .