28 August 2016
⇐20160827 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160829⇒

NOAA
4 Active Regions
12580
12581
12582
12579

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 E43N48
(-437",642") 		E79-W77
(156) 		10.7 1.0 9.2e33
2 W19N02
(304",-78") 		W06-W27
(21) 		1.2 1.7 4.6e32
3 E59S10
(-802",-217") 		E72-E50
(22) 		0.7 1.4 1.2e33

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 28-Aug-2016 23:31 UT .