29 August 2012
⇐20120828 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120830⇒

NOAA
6 Active Regions
11553
11554
11555
11558
11559
11560

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W44N28
(582",373") 		W40-W49
(9) 		0.2 -6.2 -5.3e32
2 W24N05
(382",-33") 		W22-W27
(5) 		0.1 4.6 9.3e31

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 29-Aug-2012 21:00 UT .