13 July 2018
⇐20180712 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180714⇒

NOAA
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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 E16N65
(-106",829") 		E81-W85
(166) 		4.2 1.0 5.9e21
2 E40N43
(-448",606") 		E50-E33
(17) 		0.4 0.6 2.1e20
3 W15S07
(240",-189") 		W09-W20
(11) 		0.4 -1.2 -1.1e20

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 13-Jul-2018 23:10 UT .