27 March 2020
⇐20200326 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200328⇒

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 E06S49
(-60",-651") 		E49-W27
(76) 		14.3 -0.5 -3.6e21
2 W35S16
(537",-169") 		W27-W45
(18) 		1.6 -0.3 -1.8e20
3 E06N28
(-88",542") 		E08-E04
(4) 		0.1 -1.0 -2.4e19

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 27-Mar-2020 20:30 UT .