10 July 2018
⇐20180709 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180711⇒

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 W06S12
(102",-264") 		E33-W29
(62) 		12.4 -0.0 -3.9e19
2 W23N69
(128",860") 		E72-W84
(156) 		2.4 1.0 4.7e21
3 E48N59
(-363",786") 		E66-E28
(38) 		1.0 0.7 1.3e21
4 W36S25
(505",-443") 		W32-W38
(6) 		0.1 -0.7 -4.7e19
5 E18N26
(-257",354") 		E19-E16
(3) 		0.0 -0.7 -8.4e18

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-Jul-2018 23:10 UT .