24 July 2013
⇐20130723 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130725⇒

NOAA
7 Active Regions
11793
11799
11800
11801
11802
11803
11804

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W22N09
(354",76") 		W11-W31
(20) 		2.5 5.3 3.2e33
2 E10S30
(-140",-546") 		15
(1.5e04) 		7.2 20.0 3.1e33

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 24-Jul-2013 21:00 UT .