1 February 2019
⇐20190131 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190202⇒

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Flare Prediction System
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Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W34S13
(526",-133") 		E02-W68
(70) 		8.2 -0.5 -1.3e21
2 E02S72
(-12",-887") 		E78-W73
(151) 		2.7 -1.1 -5.2e21
3 W07S21
(105",-256") 		E07-W16
(23) 		2.1 -0.0 -5.6e18
4 E46S24
(-646",-328") 		E66-E29
(37) 		1.7 -0.5 -5.0e20
5 E14N06
(-227",200") 		E22-E03
(19) 		1.1 -1.0 -2.3e20
6 E05S41
(-62",-564") 		E08-W00
(8) 		0.2 -1.4 -1.2e20
7 W27N05
(444",177") 		W25-W29
(4) 		0.0 -3.5 -5.0e19
8 E60S46
(-586",-663") 		E64-E60
(4) 		0.0 -1.4 -1.1e20

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 1-Feb-2019 20:30 UT .