25 June 2020
⇐20200624 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200626⇒

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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 E12S08
(-190",-169") 		E31-W20
(51) 		9.4 -0.2 -3.0e20
2 W17S60
(139",-837") 		E64-W44
(108) 		3.1 -0.7 -7.8e20
3 E36N75
(-142",903") 		E58-W15
(73) 		0.5 1.0 2.9e20
4 E32N44
(-360",628") 		E36-E29
(7) 		0.3 0.5 4.5e19

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 25-Jun-2020 19:00 UT .