23 December 2011
⇐20111222 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20111224⇒

NOAA
7 Active Regions
11376
11381
11382
11383
11384
11385
11386

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E38S54
(-352",-772") 		E77-E01
(76) 		3.4 0.5 2.0e33
2 E16S01
(-270",13") 		E18-E15
(3) 		0.0 -1.8 -1.8e31
3 E55S25
(-723",-396") 		E57-E52
(5) 		0.0 -2.5 -8.7e31

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 23-Dec-2011 22:00 UT .