17 December 2011
⇐20111216 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20111218⇒

NOAA
7 Active Regions
11374
11375
11376
11377
11378
11379
11380

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W07N13
(109",235") 		E00-W11
(11) 		0.6 -4.9 -5.9e32

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 17-Dec-2011 06:47 UT .