18 July 2013
⇐20130717 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130719⇒

NOAA
7 Active Regions
11791
11793
11796
11797
11798
11799
11800

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E05N33
(-74",451") 		E60-W41
(101) 		10.1 -2.9 -8.5e33

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 18-Jul-2013 21:00 UT .