2 August 2019
⇐20190801 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190803⇒

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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 W13N18
(202",209") 		E04-W27
(31) 		5.0 2.0 1.6e21
2 E14N66
(-92",826") 		E67-W89
(156) 		4.8 1.2 1.8e21
3 E29S62
(-218",-868") 		E48-E06
(42) 		0.6 -0.8 -2.2e20
4 W38S14
(561",-304") 		W34-W42
(8) 		0.2 0.5 2.1e19
5 E57S32
(-678",-539") 		E59-E56
(3) 		0.1 -1.1 -2.2e19
6 E26N26
(-375",330") 		E28-E24
(4) 		0.0 -0.9 -7.5e18
7 E10N01
(-160",-75") 		E11-E08
(3) 		0.0 1.6 9.3e18

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 2-Aug-2019 23:30 UT .