31 March 2020
⇐20200330 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200401⇒

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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 W14S16
(228",-156") 		E27-W51
(78) 		10.9 0.1 3.2e20
2 E11S65
(-76",-818") 		E71-W52
(123) 		5.4 -0.8 -4.7e21
3 E23S56
(-205",-740") 		E28-E18
(10) 		0.1 -1.3 -7.4e19
4 E44S16
(-640",-190") 		E46-E41
(5) 		0.1 -1.2 -3.3e19

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 31-Mar-2020 19:30 UT .