23 November 2012
⇐20121122 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20121124⇒

NOAA
5 Active Regions
11613
11616
11618
11619
11620

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E02N47
(-28",693") 		E53-W27
(80) 		4.1 0.7 1.5e33
2 W34S36
(446",-590") 		W24-W48
(24) 		0.7 -6.0 -2.8e33
3 E27N41
(-331",618") 		E33-E22
(11) 		0.3 -0.4 -7.7e31
4 E57N14
(-794",225") 		E67-E48
(19) 		0.3 -1.0 -3.0e32

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 23-Nov-2012 22:00 UT .