24 April 2016
⇐20160423 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160425⇒

NOAA
3 Active Regions
12533
12531
12532

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 W34N41
(402",679") 		W08-W64
(56) 		4.3 0.8 3.2e33
2 W35S15
(531",-190") 		W26-W42
(16) 		0.8 6.0 1.7e33
3 E53N18
(-728",343") 		E63-E43
(20) 		0.6 -2.7 -1.7e33
4 E23N64
(-165",887") 		E46-W03
(49) 		0.6 0.8 1.5e33
5 W46N21
(640",398") 		W36-W55
(19) 		0.5 1.5 5.6e32
6 E48S19
(-666",-267") 		E55-E40
(15) 		0.4 -1.8 -4.3e32

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 24-Apr-2016 23:43 UT .