3 September 2010
⇐20100902 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20100904⇒

NOAA
4 Active Regions
11101
11102
11103
11105

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W23S19
(351",-405") 		E07-W37
(44) 		4.7 0.5 8.6e32
2 W13S33
(174",-612") 		W11-W16
(5) 		0.1 -0.8 -3.1e31

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 3-Sep-2010 23:30 UT .