26 September 2018
⇐20180925 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180927⇒

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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 E07N68
(-43",837") 		E62-W80
(142) 		4.8 1.2 7.1e21
2 W30S22
(439",-452") 		W15-W41
(26) 		1.5 -0.6 -4.2e20
3 E01N23
(-22",270") 		E16-W17
(33) 		1.5 0.4 1.4e20
4 E16S69
(-92",-928") 		E25-W12
(37) 		0.2 -0.7 -9.0e20
5 W31S07
(487",-213") 		W28-W34
(6) 		0.1 -0.9 -4.4e19
6 E09N09
(-151",29") 		E11-E07
(4) 		0.1 -1.1 -1.4e19
7 W28N08
(453",26") 		W27-W31
(4) 		0.1 -1.0 -1.4e19

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 26-Sep-2018 23:10 UT .