24 December 2011
⇐20111223 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20111225⇒

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 E46S49
(-459",-721") 		E79-W09
(88) 		7.2 0.5 4.7e33
2 W08N02
(142",66") 		W04-W12
(8) 		0.2 -1.2 -3.9e31
3 E03N02
(-43",68") 		E05-W00
(5) 		0.1 -5.0 -5.2e31

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 24-Dec-2011 22:00 UT .