22 September 2019
⇐20190921 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190923⇒

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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 E36N19
(-531",218") 		E54-E16
(38) 		5.3 1.1 1.1e21
2 E07N73
(-31",875") 		E90-W88
(178) 		2.7 1.2 1.2e21
3 W33S09
(522",-243") 		W27-W41
(14) 		0.8 -1.3 -2.0e20
4 E24S15
(-380",-351") 		E30-E16
(14) 		0.4 1.1 8.3e19
5 W06S19
(102",-426") 		W03-W09
(6) 		0.1 -2.4 -2.2e19
6 W37N05
(568",-13") 		W35-W39
(4) 		0.0 -1.9 -1.6e19
7 W19S40
(246",-693") 		W17-W22
(5) 		0.0 -1.3 -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 22-Sep-2019 23:40 UT .