15 August 2012
⇐20120814 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120816⇒

NOAA
3 Active Regions
11542
11543
11545

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E20S20
(-302",-417") 		E42-E05
(37) 		2.9 2.6 2.6e33
2 E35N54
(-318",706") 		E58-E15
(43) 		0.6 0.4 1.9e32
3 W30S40
(357",-682") 		W21-W36
(15) 		0.1 -2.9 -3.0e32

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 15-Aug-2012 23:00 UT .