16 September 2020
⇐20200915 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200917⇒

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 W05N19
(84",198") 		E15-W23
(38) 		4.9 -0.1 -6.7e19
2 W24N71
(123",862") 		E44-W90
(134) 		2.6 1.6 1.5e21
3 E27N06
(-430",-1") 		E41-E09
(32) 		2.0 0.1 2.7e19
4 W41N04
(621",-17") 		W34-W46
(12) 		0.2 -0.6 -2.9e19
5 E13S69
(-77",-925") 		E24-W02
(26) 		0.1 -0.5 -5.1e19
6 E31S35
(-400",-626") 		E34-E25
(9) 		0.1 -0.5 -1.5e19

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 16-Sep-2020 17:28 UT .