1 September 2019
⇐20190831 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190902⇒

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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 E07N55
(-64",709") 		E82-W56
(138) 		8.5 0.6 1.1e21
2 E28S23
(-417",-473") 		E51-W03
(54) 		7.1 -0.5 -6.6e20
3 W08S10
(138",-285") 		E06-W16
(22) 		1.6 -0.4 -1.0e20
4 W50N22
(679",284") 		W34-W71
(37) 		1.2 1.3 3.8e20
5 W53S11
(743",-247") 		W44-W61
(17) 		0.7 1.1 2.0e20
6 W07S44
(82",-747") 		E00-W12
(12) 		0.2 -1.6 -6.6e19
7 E21N22
(-312",252") 		E23-E19
(4) 		0.0 -1.0 -8.4e18

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-Sep-2019 23:40 UT .