12 February 2019
⇐20190211 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190213⇒

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 W08S62
(63",-796") 		E46-W65
(111) 		7.4 -0.8 -5.1e21
2 W33S20
(493",-245") 		W15-W46
(31) 		1.8 -0.2 -1.0e20
3 W27S43
(325",-584") 		W06-W44
(38) 		1.1 -0.7 -4.1e20
4 E22N63
(-164",906") 		E39-W15
(54) 		0.7 0.5 1.1e21
5 E51N06
(-756",171") 		E56-E46
(10) 		0.2 1.1 2.0e20
6 E32S22
(-482",-273") 		E36-E28
(8) 		0.1 -1.2 -6.1e19
7 W42N04
(657",148") 		W38-W47
(9) 		0.1 -0.5 -3.6e19
8 W35N05
(559",185") 		W33-W37
(4) 		0.1 -0.9 -3.6e19
9 E28S08
(-449",-42") 		E31-E25
(6) 		0.1 -0.9 -1.8e19

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 12-Feb-2019 20:30 UT .