25 September 2018
⇐20180924 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180926⇒

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Flare Forecast
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Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E10N68
(-63",838") 		E65-W88
(153) 		4.6 1.2 7.2e21
2 W28S14
(432",-330") 		W16-W38
(22) 		1.9 -0.3 -2.3e20
3 W17S24
(253",-484") 		W10-W24
(14) 		0.6 -0.8 -1.8e20
4 E14S69
(-85",-927") 		E29-W17
(46) 		0.2 -0.3 -4.9e20
5 W47S23
(649",-444") 		W45-W49
(4) 		0.1 -0.9 -6.2e19
6 E36S13
(-546",-303") 		E39-E32
(7) 		0.1 -1.0 -3.3e19
7 W15N50
(159",660") 		W12-W18
(6) 		0.0 -0.5 -1.3e19

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 25-Sep-2018 23:10 UT .