14 February 2014
⇐20140213 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20140215⇒

NOAA
7 Active Regions
11971
11973
11974
11976
11977
11978
11979

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W25S57
(223",-756") 		E58-W63
(121) 		5.5 -0.5 -2.0e33
2 E30N37
(-387",658") 		E68-W11
(79) 		4.2 1.5 4.4e33
3 E17N51
(-182",822") 		E24-E08
(16) 		0.2 -0.5 -9.5e31
4 W18N12
(300",309") 		W16-W20
(4) 		0.0 2.3 3.1e31

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 14-Feb-2014 20:35 UT .