1 December 2011
⇐20111130 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20111202⇒

NOAA
7 Active Regions
11355
11356
11358
11361
11362
11363
11364

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W16S51
(171",-762") 		E64-W39
(103) 		8.7 0.7 4.9e33
2 W64S48
(585",-730") 		W65-W70
(5) 		0.3 0.4 5.9e32
3 W15S20
(242",-350") 		W13-W17
(4) 		0.1 -2.4 -3.4e31

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 1-Dec-2011 23:47 UT .