2 December 2011
⇐20111201 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20111203⇒

NOAA
7 Active Regions
11356
11358
11361
11362
11363
11364
11365

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W33S51
(338",-760") 		E55-W56
(111) 		7.8 0.7 5.9e33
2 W57S25
(747",-412") 		W53-W62
(9) 		0.1 2.7 4.1e32

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 2-Dec-2011 23:47 UT .