14 August 2017
⇐20170813 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170815⇒

NOAA
1 Active Region
12670

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 E34N44
(-382",584") 		E65-W18
(83) 		12.1 2.1 1.5e34
2 E22S26
(-314",-499") 		E26-E18
(8) 		0.0 -1.8 -3.0e31

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 14-Aug-2017 23:30 UT .