13 April 2014
⇐20140412 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20140414⇒

NOAA
7 Active Regions
12027
12032
12033
12034
12035
12028
12030

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W44S52
(405",-709") 		W01-W62
(61) 		5.1 -1.0 -5.1e33
2 E49N49
(-471",761") 		E65-E29
(36) 		0.6 0.4 5.7e32
3 W51N20
(701",385") 		W44-W59
(15) 		0.5 0.9 4.1e32
4 W23N44
(272",725") 		W18-W29
(11) 		0.1 -1.8 -1.6e32
5 E35N60
(-276",863") 		E41-E26
(15) 		0.1 -1.4 -3.7e32

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 13-Apr-2014 23:35 UT .