2 September 2013
⇐20130901 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130903⇒

NOAA
3 Active Regions
11834
11835
11836

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W14S08
(225",-249") 		W05-W20
(15) 		1.7 -3.3 -1.3e33
2 W57N41
(602",575") 		W46-W68
(22) 		0.2 1.7 4.8e32

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 2-Sep-2013 23:35 UT .