25 November 2012
⇐20121124 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20121126⇒

NOAA
5 Active Regions
11616
11618
11619
11620
11621

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W10N51
(106",741") 		E43-W40
(83) 		4.3 0.5 1.4e33
2 E46N35
(-574",545") 		E58-E35
(23) 		1.1 0.5 4.3e32
3 E30N20
(-457",308") 		E37-E22
(15) 		0.7 -1.5 -4.0e32
4 E34N02
(-544",18") 		E41-E27
(14) 		0.7 -1.2 -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 25-Nov-2012 22:00 UT .