10 October 2017
⇐20171009 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171011⇒

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 W10N53
(100",700") 		E57-W50
(107) 		12.3 1.2 8.3e33
2 W15S11
(244",-276") 		E05-W27
(32) 		2.4 -0.3 -1.9e32
3 E13S65
(-96",-906") 		E44-W14
(58) 		0.8 -0.7 -1.8e33
4 W51N22
(699",292") 		W48-W56
(8) 		0.1 3.2 3.1e32

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 10-Oct-2017 23:30 UT .