11 December 2011
⇐20111210 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20111212⇒

NOAA
7 Active Regions
11363
11364
11366
11367
11372
11374
11375

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E16S25
(-246",-407") 		E19-E12
(7) 		0.2 5.2 2.7e32
2 E00S02
(-1",-24") 		E02-W02
(4) 		0.0 -3.6 -2.4e31

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 11-Dec-2011 23:47 UT .