5 August 2013
⇐20130804 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130806⇒

NOAA
7 Active Regions
11801
11806
11808
11809
11810
11811
11812

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W17N69
(100",843") 		E18-W44
(62) 		0.9 0.5 6.4e32
2 W44S39
(513",-644") 		W40-W50
(10) 		0.3 0.8 3.0e32
3 W65N43
(628",607") 		W61-W74
(13) 		0.1 1.6 3.3e32

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 5-Aug-2013 21:00 UT .