5 October 2012
⇐20121004 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20121006⇒

NOAA
4 Active Regions
11579
11582
11584
11585

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E09S13
(-141",-314") 		E15-W07
(22) 		2.0 -2.2 -1.1e33
2 W27N43
(313",587") 		W16-W38
(22) 		0.8 0.6 2.1e32
3 W28N60
(227",776") 		W15-W45
(30) 		0.7 0.4 2.8e32
4 E20N29
(-286",373") 		E28-E12
(16) 		0.5 -5.8 -9.6e32
5 E21S35
(-275",-636") 		E26-E14
(12) 		0.2 -6.8 -7.9e32

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 5-Oct-2012 21:00 UT .