7 February 2012
⇐20120206 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120208⇒

NOAA
2 Active Regions
11410
11413

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W03S30
(44",-385") 		E10-W16
(26) 		1.6 6.1 2.4e33
2 E26N12
(-421",293") 		E33-E20
(13) 		1.0 -8.5 -2.6e33
3 E31S76
(-123",-915") 		E84-W73
(157) 		0.6 0.9 1.6e33
4 E43S26
(-594",-354") 		E52-E35
(17) 		0.1 -4.3 -3.1e32

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 7-Feb-2012 22:00 UT .