9 November 2017
⇐20171108 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171110⇒

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 E03N55
(-33",762") 		E45-W61
(106) 		9.0 1.4 8.8e33
2 W15S68
(90",-921") 		E37-W38
(75) 		0.7 -1.1 -2.7e33
3 E58S13
(-802",-244") 		E65-E53
(12) 		0.5 -0.6 -3.8e32
4 E19S36
(-251",-609") 		E25-E12
(13) 		0.4 -0.5 -7.7e31

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 9-Nov-2017 20:30 UT .