5 February 2013
⇐20130204 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130206⇒

NOAA
3 Active Regions
11665
11667
11669

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W26N32
(360",589") 		E08-W42
(50) 		3.3 -2.7 -4.7e33
2 E26S39
(-337",-532") 		E44-E04
(40) 		2.6 3.3 3.7e33
3 E40S74
(-166",-910") 		E86-W24
(110) 		0.9 0.6 1.7e33
4 W25S28
(369",-364") 		W20-W33
(13) 		0.4 10.6 1.6e33
5 E01S18
(-20",-196") 		E05-W04
(9) 		0.2 14.2 5.4e32

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 5-Feb-2013 22:00 UT .