20 September 2019
⇐20190919 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190921⇒

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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 W12N72
(59",869") 		E85-W68
(153) 		2.8 1.1 1.2e21
2 W10S06
(163",-208") 		E07-W21
(28) 		2.7 -1.1 -4.7e20
3 W33S57
(283",-852") 		E23-W46
(69) 		1.4 -0.7 -4.5e20
4 E55N16
(-757",190") 		E71-E38
(33) 		0.8 1.5 3.1e20
5 E03S25
(-46",-509") 		E06-W04
(10) 		0.3 -0.7 -3.4e19
6 E10S14
(-165",-343") 		E12-E06
(6) 		0.0 -1.7 -1.4e19
7 W15N08
(240",22") 		3
(5.6e02) 		-1.4 2.9 1.6e19

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 20-Sep-2019 23:40 UT .