30 August 2015
⇐20150829 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150831⇒

NOAA
3 Active Regions
12403
12405
12406

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W01N07
(10",-7") 		E10-W08
(18) 		2.0 6.3 2.0e33
2 W51S51
(464",-781") 		E19-W65
(84) 		1.7 -1.0 -5.9e33
3 E56N33
(-661",464") 		E63-E50
(13) 		0.4 1.0 3.9e32

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 30-Aug-2015 23:35 UT .