14 April 2012
⇐20120413 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120415⇒

NOAA
5 Active Regions
11454
11455
11457
11458
11459

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W16S13
(258",-130") 		W11-W25
(14) 		1.0 -1.1 -2.6e32
2 W59N08
(817",181") 		W50-W68
(18) 		0.7 -2.1 -1.8e33
3 W22S05
(361",6") 		W20-W26
(6) 		0.1 -0.9 -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-Apr-2012 23:00 UT .