9 February 2012
⇐20120208 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120210⇒

NOAA
3 Active Regions
11410
11415
11416

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W26S31
(369",-409") 		W18-W40
(22) 		1.1 6.5 2.6e33
2 W04N14
(73",346") 		E01-W09
(10) 		0.7 -15.5 -2.8e33
3 E16S27
(-239",-353") 		E25-E08
(17) 		0.7 -4.1 -7.8e32
4 W24S76
(96",-913") 		E26-W82
(108) 		0.7 1.1 2.1e33
5 E01S08
(-20",-19") 		E03-W02
(5) 		0.1 -1.2 -2.3e31

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 9-Feb-2012 22:00 UT .