25 May 2016
⇐20160524 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160526⇒

NOAA
2 Active Regions
12546
12548

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 E12N23
(-181",393") 		E18-W09
(27) 		2.6 -1.9 -1.4e33
2 W17S15
(268",-216") 		W10-W25
(15) 		1.3 -5.6 -1.8e33
3 W35S15
(523",-232") 		W29-W42
(13) 		0.2 -8.7 -7.0e32

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 25-May-2016 23:17 UT .