24 September 2016
⇐20160923 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160925⇒

NOAA
4 Active Regions
12593
12596
12597
12592

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 E44N52
(-411",693") 		E78-W49
(127) 		12.2 1.3 1.6e34
2 E49S07
(-715",-195") 		E74-E32
(42) 		2.0 0.9 1.3e33
3 W18N06
(295",-10") 		W15-W21
(6) 		0.5 3.4 3.6e32

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-Sep-2016 20:30 UT .