27 May 2016
⇐20160526 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160528⇒

NOAA
2 Active Regions
12546
12548

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 W19N22
(285",379") 		W07-W34
(27) 		2.5 0.1 7.5e31
2 W19S72
(96",-897") 		E62-W72
(134) 		1.0 0.2 8.0e32
3 W48S17
(674",-262") 		W43-W56
(13) 		0.3 -4.3 -7.1e32
4 W46S12
(666",-179") 		W44-W48
(4) 		0.0 4.0 1.1e32

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-May-2016 23:17 UT .