12 December 2010
⇐20101211 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20101213⇒

NOAA
2 Active Regions
11131
11133

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E27S08
(-435",-135") 		E61-W11
(72) 		6.0 -1.0 -1.7e33
2 W39S09
(601",-151") 		W27-W61
(34) 		2.8 -0.4 -5.1e32
3 E32S06
(-509",-96") 		E35-E28
(7) 		0.3 -0.7 -6.6e31
4 W04S05
(67",-81") 		W01-W06
(5) 		0.2 -1.5 -3.9e31

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 12-Dec-2010 23:30 UT .