28 July 2016
⇐20160727 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160729⇒

NOAA
1 Active Region
12569

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 W33N64
(227",813") 		40
(2.5e05) 		-0.2 6.7 1.7e34
2 W34S04
(532",-136") 		W24-W47
(23) 		1.3 5.4 2.5e33

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 28-Jul-2016 23:20 UT .