5 September 2013
⇐20130904 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130906⇒

NOAA
4 Active Regions
11834
11835
11836
11837

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E17N59
(-145",751") 		E36-W50
(86) 		3.9 0.4 1.4e33
2 E34N14
(-519",139") 		E43-E26
(17) 		0.4 -6.8 -1.0e33

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-Sep-2013 23:35 UT .