26 April 2016
⇐20160425 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160427⇒

NOAA
4 Active Regions
12532
12533
12535
12534

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E29N19
(-436",373") 		E43-E14
(29) 		2.0 -4.1 -3.2e33
2 E20S21
(-299",-279") 		E28-E10
(18) 		1.1 -2.5 -7.2e32
3 W58N40
(620",645") 		W40-W66
(26) 		0.8 0.6 1.3e33
4 W13N65
(90",894") 		E07-W27
(34) 		0.4 0.8 9.5e32
5 E53S74
(-205",-903") 		E81-E04
(77) 		0.4 -0.7 -1.6e33

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 26-Apr-2016 23:43 UT .