11 October 2017
⇐20171010 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171012⇒

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 W10N54
(94",717") 		E55-W57
(112) 		9.5 1.5 8.6e33
2 E02S64
(-11",-906") 		E41-W20
(61) 		0.9 -0.6 -1.5e33
3 E15S31
(-211",-584") 		E17-E12
(5) 		0.1 -1.8 -4.1e31
4 W14N50
(145",672") 		W11-W17
(6) 		0.1 -1.2 -3.3e31

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 11-Oct-2017 23:30 UT .